Rooijen10

Spammer wanna be

Posts: 68

(4/18/03 8:37:42 am)

**Japan's Battleships**

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Battleships:

**Fuso class**

Fuso, laid down 1914

Length, 710 ft x Beam, 104.0 ft x Depth, 30.0 ft

35443 tons normal displacement (31639 tons standard)

Main battery: 12 x 14.0-inch (6 x 2; 2 superfiring)

Secondary battery: 16 x 5.0-inch

AA battery: 18 x 2.0-inch

Light battery: 42 x 1.0-inch

Weight of broadside: 17557 lbs

6 TT, 21.0" (submerged)

Main belt, 12.0 inches; bow and stern, 3.5 inches

Upper belt, 7.0 inches

Torpedo bulkhead, 2.0 inches

Armor deck, average 2.5 inches

C.T., 13.0 inches

Battery armor:

Main, 11.0" / secondary, 4.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 60064 shp = 24.00 knots

Approximate cruising radius, 16000 nm / 12 kts

Typical complement: 1292-1679

Estimated cost, $16.285 million (£4.071 million)

Remarks:

Oil firing.

Relative extent of belt armor, 91 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

3 float planes + 1 catapult (100 tons misc. load)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 2195 tons = 6 pct

Armor, total ..................... 11376 tons = 32 pct

Belt 4008 tons = 11 pct

Torpedo bulkhead 1025 tons = 3 pct

Deck 2316 tons = 7 pct

C.T. 303 tons = 1 pct

Armament 3725 tons = 11 pct

Machinery ........................ 2314 tons = 7 pct

Hull and fittings; equipment ..... 13483 tons = 38 pct

Fuel, ammunition, stores ......... 5976 tons = 17 pct

Miscellaneous weights ............ 100 tons = 0 pct

-----

35443 tons = 100 pct

Estimated metacentric height, 6.7 ft

Displacement summary:

Light ship: 29468 tons

Standard displacement: 31639 tons

Normal service: 35443 tons

Full load: 38344 tons

Loading submergence 1431 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.13

Shellfire needed to sink: 35433 lbs = 25.8 x 14.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 5.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 55 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.47

Relative quality as a seaboat: 1.11

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.56

Sharpness coefficient: 0.40

Hull speed coefficient 'M' = 6.61

'Natural speed' for length = 26.6 knots

Power going to wave formation

at top speed: 44 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 90 percent

Relative accommodation and working space: 126 percent

Displacement factor: 106 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.02

(Structure weight per square

foot of hull surface: 199 lbs)

Relative longitudinal hull strength: 1.03

(for 17.0 ft average freeboard;

freeboard adjustment -2.5 ft)

Relative composite hull strength: 1.02

**Nagato class**

Nagato.txt, laid down 1918

Length, 800 ft x Beam, 105.0 ft x Depth, 31.0 ft

44640 tons normal displacement (39624 tons standard)

Main battery: 12 x 14.0-inch (4 x 3; 2 superfiring)

Secondary battery: 20 x 5.0-inch

AA battery: 21 x 2.0-inch

Light battery: 36 x 1.0-inch

Weight of broadside: 17816 lbs

8 TT, 21.0" (4 submerged)

Main belt, 12.0 inches; bow and stern, 3.5 inches

Upper belt, 8.0 inches

Torpedo bulkhead, 2.0 inches

Armor deck, average 2.5 inches

C.T., 14.0 inches

Battery armor:

Main, 12.0" / secondary, 4.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 121006 shp = 28.00 knots

Approximate cruising radius, 13000 nm / 15 kts

Typical complement: 1536-1996

Estimated cost, $30.284 million (£7.571 million)

Remarks:

Oil firing.

Relative extent of belt armor, 91 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

3 float planes + 1 catapult (100 tons misc. load)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 2227 tons = 5 pct

Armor, total ..................... 12967 tons = 29 pct

Belt 4633 tons = 10 pct

Torpedo bulkhead 1193 tons = 3 pct

Deck 2759 tons = 6 pct

C.T. 381 tons = 1 pct

Armament 4000 tons = 9 pct

Machinery ........................ 4365 tons = 10 pct

Hull and fittings; equipment ..... 17587 tons = 39 pct

Fuel, ammunition, stores ......... 7393 tons = 17 pct

Miscellaneous weights ............ 100 tons = 0 pct

-----

44640 tons = 100 pct

Estimated metacentric height, 6.7 ft

Displacement summary:

Light ship: 37247 tons

Standard displacement: 39624 tons

Normal service: 44640 tons

Full load: 48474 tons

Loading submergence 1704 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.13

Shellfire needed to sink: 47475 lbs = 34.6 x 14.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 6.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 56 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.53

Relative quality as a seaboat: 1.11

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.60

Sharpness coefficient: 0.40

Hull speed coefficient 'M' = 6.90

'Natural speed' for length = 28.3 knots

Power going to wave formation

at top speed: 48 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 90 percent

Relative accommodation and working space: 150 percent

Displacement factor: 114 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.05

(Structure weight per square

foot of hull surface: 212 lbs)

Relative longitudinal hull strength: 1.05

(for 20.9 ft average freeboard;

freeboard adjustment +0.5 ft)

Relative composite hull strength: 1.05

**Kii class**

(I'm not sure when to lay it down yet so I used 1923 as base)

Kii, laid down 1923

Length, 800 ft x Beam, 104.0 ft x Depth, 32.0 ft

44120 tons normal displacement (39278 tons standard)

Main battery: 10 x 15.0-inch (2x3 and 2x2 turrets; 2 superfiring)

Secondary battery: 20 x 5.0-inch

AA battery: 24 x 2.0-inch

Light battery: 42 x 1.0-inch

Weight of broadside: 18242 lbs

Main belt, 14.0 inches; bow and stern, 3.5 inches

Upper belt, 7.0 inches

Torpedo bulkhead, 3.0 inches

Armor deck, average 3.0 inches

C.T., 14.0 inches

Battery armor:

Main, 13.0" / secondary, 2.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 110889 shp = 27.50 knots

Approximate cruising radius, 14000 nm / 15 kts

Typical complement: 1522-1979

Estimated cost, $43.345 million (£10.836 million)

Remarks:

Relative extent of belt armor, 88 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

3 float planes + 1 catapult (100 tons misc. load)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 2280 tons = 5 pct

Armor, total ..................... 14231 tons = 32 pct

Belt 4778 tons = 11 pct

Torpedo bulkhead 1847 tons = 4 pct

Deck 3206 tons = 7 pct

C.T. 378 tons = 1 pct

Armament 4022 tons = 9 pct

Machinery ........................ 3706 tons = 8 pct

Hull and fittings; equipment ..... 16558 tons = 38 pct

Fuel, ammunition, stores ......... 7244 tons = 16 pct

Miscellaneous weights ............ 100 tons = 0 pct

-----

44120 tons = 100 pct

Estimated metacentric height, 6.4 ft

Displacement summary:

Light ship: 36876 tons

Standard displacement: 39278 tons

Normal service: 44120 tons

Full load: 47817 tons

Loading submergence 1650 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.10

Shellfire needed to sink: 47914 lbs = 28.4 x 15.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 7.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 56 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.55

Relative quality as a seaboat: 1.13

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.58

Sharpness coefficient: 0.39

Hull speed coefficient 'M' = 6.93

'Natural speed' for length = 28.3 knots

Power going to wave formation

at top speed: 47 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 84 percent

Relative accommodation and working space: 144 percent

Displacement factor: 111 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.00

(Structure weight per square

foot of hull surface: 204 lbs)

Relative longitudinal hull strength: 1.00

(for 19.9 ft average freeboard;

freeboard adjustment -0.5 ft)

Relative composite hull strength: 1.00

Walter

Edited by: Rooijen10 at: 4/18/03 2:15:49 pm

Rooijen10

Spammer wanna be

Posts: 69

(4/18/03 8:47:39 am)

**Japan's Carriers**

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Carriers:

**Hosho class**

Hosho, laid down 1919

Length, 590 ft x Beam, 60.0 ft x Depth, 20.0 ft

9507 tons normal displacement (7623 tons standard)

42 Planes

Main battery: 4 x 5.0-inch (4 x 1)

AA battery: 15 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 322 lbs

Hull unarmored

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 65557 shp = 30.35 knots

Approximate cruising radius, 13000 nm / 15 kts

Typical complement: 481-626

Estimated cost, $5.402 million (£1.350 million)

Remarks:

Oil firing.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 40 tons = 0 pct

Armor, total ..................... 88 tons = 1 pct

Armament 88 tons = 1 pct

Machinery ........................ 2328 tons = 24 pct

Hull and fittings; equipment ..... 3149 tons = 33 pct

Fuel, ammunition, stores ......... 2102 tons = 22 pct

Miscellaneous weights ............ 1800 tons = 19 pct

-----

9507 tons = 100 pct

Estimated metacentric height, 3.3 ft

Displacement summary:

Light ship: 7406 tons

Standard displacement: 7623 tons

Normal service: 9507 tons

Full load: 10977 tons

Loading submergence 610 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.21

Shellfire needed to sink: 10011 lbs = 160.2 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 57 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.06

Relative quality as a seaboat: 1.15

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.47

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.52

'Natural speed' for length = 24.3 knots

Power going to wave formation

at top speed: 52 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 104 percent

Relative accommodation and working space: 139 percent

Displacement factor: 138 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.05

(Structure weight per square

foot of hull surface: 91 lbs)

Relative longitudinal hull strength: 1.05

(for 16.5 ft average freeboard;

freeboard adjustment +1.5 ft)

Relative composite hull strength: 1.05

**Zuiho class**

Zuiho, laid down 1920

Length, 750 ft x Beam, 105.0 ft x Depth, 26.5 ft

29813 tons normal displacement (26756 tons standard)

80 planes

Main battery: 6 x 8.0-inch (3 x 2)

Secondary battery: 10 x 5.0-inch (5 x 2)

AA battery: 12 x 2.0-inch

Light battery: 30 x 1.0-inch

Weight of broadside: 2224 lbs

Main belt, 11.0 inches; bow and stern, 3.5 inches

Upper belt, 7.0 inches

Torpedo bulkhead, 2.0 inches

Armor deck, average 2.0 inches

C.T., 10.0 inches

Battery armor:

Main, 3.0" / secondary, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 76048 shp = 26.50 knots

Approximate cruising radius, 11000 nm / 15 kts

Typical complement: 1134-1475

Estimated cost, $14.323 million (£3.581 million)

Remarks:

Relative extent of belt armor, 84 percent of 'typical' coverage.

Ship has slow, easy roll; a good, steady gun platform.

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 278 tons = 1 pct

Armor, total ..................... 7123 tons = 24 pct

Belt 3686 tons = 12 pct

Torpedo bulkhead 956 tons = 3 pct

Deck 1831 tons = 6 pct

C.T. 208 tons = 1 pct

Armament 442 tons = 1 pct

Machinery ........................ 2659 tons = 9 pct

Hull and fittings; equipment ..... 9515 tons = 32 pct

Fuel, ammunition, stores ......... 3838 tons = 13 pct

Miscellaneous weights ............ 6400 tons = 21 pct

-----

29813 tons = 100 pct

Estimated metacentric height, 7.5 ft

Displacement summary:

Light ship: 25975 tons

Standard displacement: 26756 tons

Normal service: 29813 tons

Full load: 32138 tons

Loading submergence 1414 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.20

Shellfire needed to sink: 43681 lbs = 170.6 x 8.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 7.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 73 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.08

Relative quality as a seaboat: 1.46

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.37

Hull speed coefficient 'M' = 7.40

'Natural speed' for length = 27.4 knots

Power going to wave formation

at top speed: 44 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 75 percent

Relative accommodation and working space: 175 percent

Displacement factor: 142 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.04

(Structure weight per square

foot of hull surface: 138 lbs)

Relative longitudinal hull strength: 1.02

(for 21.0 ft average freeboard;

freeboard adjustment +2.2 ft)

Relative composite hull strength: 1.02

**Soryu class**

(I'm not sure when to lay it down yet so I used 1924 as base, keeping the Kii in mind)

Soryu, laid down 1924

Length, 700 ft x Beam, 75.0 ft x Depth, 24.0 ft

16200 tons normal displacement (13998 tons standard)

70 planes

Main battery: 12 x 5.0-inch (6 x 2)

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 810 lbs

Main belt, 2.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 4.0 inches

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 62800 shp = 28.00 knots

Approximate cruising radius, 12000 nm / 15 kts

Typical complement: 718-933

Estimated cost, $10.520 million (£2.630 million)

Remarks:

Relative extent of belt armor, 84 percent of 'typical' coverage.

Ship has slow, easy roll; a good, steady gun platform.

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 101 tons = 1 pct

Armor, total ..................... 1150 tons = 7 pct

Belt 328 tons = 2 pct

Deck 569 tons = 4 pct

C.T. 55 tons = 0 pct

Armament 198 tons = 1 pct

Machinery ........................ 2069 tons = 13 pct

Hull and fittings; equipment ..... 5386 tons = 33 pct

Fuel, ammunition, stores ......... 2594 tons = 16 pct

Miscellaneous weights ............ 4900 tons = 30 pct

-----

16200 tons = 100 pct

Estimated metacentric height, 3.5 ft

Displacement summary:

Light ship: 13606 tons

Standard displacement: 13998 tons

Normal service: 16200 tons

Full load: 17897 tons

Loading submergence 879 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 20527 lbs = 328.4 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.6

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 71 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.10

Relative quality as a seaboat: 1.43

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.46

'Natural speed' for length = 26.5 knots

Power going to wave formation

at top speed: 44 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 80 percent

Relative accommodation and working space: 147 percent

Displacement factor: 147 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.08

(Structure weight per square

foot of hull surface: 112 lbs)

Relative longitudinal hull strength: 0.99

(for 18.0 ft average freeboard;

freeboard adjustment +1.3 ft)

Relative composite hull strength: 1.01

Walter

Edited by: Rooijen10 at: 4/18/03 2:18:29 pm

Rooijen10

Spammer wanna be

Posts: 70

(4/18/03 9:29:04 am)

**Japan's Heavy Cruisers**

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Heavy Cruisers:

**Asama class**

Asama, laid down 1912

Length, 500 ft x Beam, 65.0 ft x Depth, 26.0 ft

12071 tons normal displacement (10218 tons standard)

Main battery: 14 x 8.0-inch (8 turrets)

Secondary battery: 10 x 6.0-inch

QF battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 4724 lbs

4 TT, 21.0"

Main belt, 7.0 inches; bow and stern, 2.0 inches

Upper belt, 2.0 inches

Armor deck, average 2.0 inches

C.T., 13.0 inches

Battery armor:

Main, 6.0" / secondary, 3.0"

QF, 1.0" shields / light guns, 1.0" shields

Maximum speed for 38997 shp = 25.00 knots

Approximate cruising radius, 14000 nm / 12 kts

Typical complement: 576-749

Estimated cost, $4.196 million (£1.049 million)

Remarks:

Oil firing.

Relative extent of belt armor, 85 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 591 tons = 5 pct

Armor, total ..................... 3119 tons = 26 pct

Belt 1082 tons = 9 pct

Deck 756 tons = 6 pct

C.T. 147 tons = 1 pct

Armament 1133 tons = 9 pct

Machinery ........................ 1555 tons = 13 pct

Hull and fittings; equipment ..... 4319 tons = 36 pct

Fuel, ammunition, stores ......... 2489 tons = 21 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

12071 tons = 100 pct

Estimated metacentric height, 3.0 ft

Displacement summary:

Light ship: 9583 tons

Standard displacement: 10218 tons

Normal service: 12071 tons

Full load: 13506 tons

Loading submergence 584 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.08

Shellfire needed to sink: 13428 lbs = 52.5 x 8.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.1

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 52 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.66

Relative quality as a seaboat: 1.03

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.36

Hull speed coefficient 'M' = 6.67

'Natural speed' for length = 22.4 knots

Power going to wave formation

at top speed: 52 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 80 percent

Relative accommodation and working space: 92 percent

Displacement factor: 110 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.03

(Structure weight per square

foot of hull surface: 131 lbs)

Relative longitudinal hull strength: 1.63

(for 14.8 ft average freeboard;

freeboard adjustment -0.9 ft)

Relative composite hull strength: 1.08

**Jakumo class**

Jakumo, laid down 1914

Length, 550 ft x Beam, 70.0 ft x Depth, 25.0 ft

13750 tons normal displacement (11404 tons standard)

Main battery: 8 x 8.0-inch (2 x 4) (!)

Secondary battery: 12 x 6.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 3404 lbs

4 TT, 21.0"

Main belt, 8.0 inches; bow and stern, 2.0 inches

Upper belt, 3.0 inches

Armor deck, average 2.5 inches

C.T., 12.0 inches

Battery armor:

Main, 8.0" / secondary, 3.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 55199 shp = 27.00 knots

Approximate cruising radius, 18000 nm / 12 kts

Typical complement: 635-825

Estimated cost, $5.267 million (£1.317 million)

Remarks:

Oil firing.

Relative extent of belt armor, 80 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 426 tons = 3 pct

Armor, total ..................... 3291 tons = 24 pct

Belt 1370 tons = 10 pct

Deck 1119 tons = 8 pct

C.T. 149 tons = 1 pct

Armament 654 tons = 5 pct

Machinery ........................ 2126 tons = 15 pct

Hull and fittings; equipment ..... 5002 tons = 36 pct

Fuel, ammunition, stores ......... 2905 tons = 21 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

13750 tons = 100 pct

Estimated metacentric height, 4.4 ft

Displacement summary:

Light ship: 10845 tons

Standard displacement: 11404 tons

Normal service: 13750 tons

Full load: 15572 tons

Loading submergence 691 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.26

Shellfire needed to sink: 18610 lbs = 72.7 x 8.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.5

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 54 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.34

Relative quality as a seaboat: 1.08

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.36

Hull speed coefficient 'M' = 7.02

'Natural speed' for length = 23.5 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 75 percent

Relative accommodation and working space: 108 percent

Displacement factor: 126 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.07

(Structure weight per square

foot of hull surface: 133 lbs)

Relative longitudinal hull strength: 1.52

(for 16.0 ft average freeboard;

freeboard adjustment -0.1 ft)

Relative composite hull strength: 1.11

**Furutaka class**

(I'm not sure when to lay it down yet so I used 1926 as base, keeping the Kii and Soryu in mind)

Furutaka, laid down 1926

Length, 720 ft x Beam, 60.0 ft x Depth, 22.0 ft

14935 tons normal displacement (12672 tons standard)

Main battery: 8 x 8.0-inch (4 x 2; 2 superfiring)

Secondary battery: 10 x 5.0-inch (6 turrets)

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 2733 lbs

4 TT, 21.0"

Main belt, 4.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 1.0 inches

Battery armor:

Main, 3.0" / secondary, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 127428 shp = 34.00 knots

Approximate cruising radius, 13000 nm / 15 kts

Typical complement: 675-878

Estimated cost, $17.730 million (£4.433 million)

Remarks:

Relative extent of belt armor, 114 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 342 tons = 2 pct

Armor, total ..................... 1819 tons = 12 pct

Belt 800 tons = 5 pct

Deck 535 tons = 4 pct

C.T. 13 tons = 0 pct

Armament 471 tons = 3 pct

Machinery ........................ 4079 tons = 27 pct

Hull and fittings; equipment ..... 5906 tons = 40 pct

Fuel, ammunition, stores ......... 2789 tons = 19 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

14935 tons = 100 pct

Estimated metacentric height, 3.4 ft

Displacement summary:

Light ship: 12145 tons

Standard displacement: 12672 tons

Normal service: 14935 tons

Full load: 16686 tons

Loading submergence 827 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.24

Shellfire needed to sink: 15245 lbs = 59.5 x 8.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.6

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 51 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.51

Relative quality as a seaboat: 1.02

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.94

'Natural speed' for length = 26.8 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 106 percent

Relative accommodation and working space: 149 percent

Displacement factor: 118 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.10

(Structure weight per square

foot of hull surface: 123 lbs)

Relative longitudinal hull strength: 0.98

(for 19.5 ft average freeboard;

freeboard adjustment +3.1 ft)

Relative composite hull strength: 1.01

Walter

Edited by: Rooijen10 at: 4/18/03 1:51:49 pm

Rooijen10

Spammer wanna be

Posts: 71

(4/18/03 10:05:59 am)

**Japan's Light Cruisers**

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Light Cruisers:

**Tenryu class**

Tenryu, laid down 1914

Length, 500 ft x Beam, 55.0 ft x Depth, 16.0 ft

6034 tons normal displacement (5137 tons standard)

Main battery: 12 x 5.0-inch

Secondary battery: 10 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 945 lbs

4 TT, 21.0"

Main belt, 4.0 inches; bow and stern, 1.0 inches

Upper belt, 2.0 inches

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 1.0" shields / secondary, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 38892 shp = 28.00 knots

Approximate cruising radius, 11000 nm / 12 kts

Typical complement: 342-445

Estimated cost, $2.453 million (£613,000)

Remarks:

Oil firing.

Relative extent of belt armor, 98 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 118 tons = 2 pct

Armor, total ..................... 1114 tons = 18 pct

Belt 737 tons = 12 pct

Deck 311 tons = 5 pct

C.T. 14 tons = 0 pct

Armament 52 tons = 1 pct

Machinery ........................ 1498 tons = 25 pct

Hull and fittings; equipment ..... 2207 tons = 37 pct

Fuel, ammunition, stores ......... 1097 tons = 18 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

6034 tons = 100 pct

Estimated metacentric height, 3.9 ft

Displacement summary:

Light ship: 4937 tons

Standard displacement: 5137 tons

Normal service: 6034 tons

Full load: 6728 tons

Loading submergence 481 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.46

Shellfire needed to sink: 8115 lbs = 129.8 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 54 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.10

Relative quality as a seaboat: 1.08

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.34

Hull speed coefficient 'M' = 8.40

'Natural speed' for length = 22.4 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 96 percent

Relative accommodation and working space: 126 percent

Displacement factor: 119 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.03

(Structure weight per square

foot of hull surface: 85 lbs)

Relative longitudinal hull strength: 1.07

(for 14.3 ft average freeboard;

freeboard adjustment +0.6 ft)

Relative composite hull strength: 1.03

**Kuma class**

Kuma, laid down 1916

Length, 600 ft x Beam, 60.0 ft x Depth, 15.0 ft

7406 tons normal displacement (6445 tons standard)

Main battery: 12 x 5.0-inch

Secondary battery: 10 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 945 lbs

4 TT, 21.0"

Main belt, 2.0 inches; bow and stern, 1.0 inches

Upper belt, 2.0 inches

Armor deck, average 1.5 inches

C.T., 2.0 inches

Battery armor:

Main, 1.0" shields / secondary, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 44169 shp = 28.50 knots

Approximate cruising radius, 11000 nm / 12 kts

Typical complement: 399-519

Estimated cost, $3.582 million (£895,000)

Remarks:

Oil firing.

Relative extent of belt armor, 87 percent of 'typical' coverage.

Good seaboat; rides out heavy weather easily.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 118 tons = 2 pct

Armor, total ..................... 1227 tons = 17 pct

Belt 544 tons = 7 pct

Deck 611 tons = 8 pct

C.T. 16 tons = 0 pct

Armament 56 tons = 1 pct

Machinery ........................ 1646 tons = 22 pct

Hull and fittings; equipment ..... 3227 tons = 44 pct

Fuel, ammunition, stores ......... 1188 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

7406 tons = 100 pct

Estimated metacentric height, 4.3 ft

Displacement summary:

Light ship: 6218 tons

Standard displacement: 6445 tons

Normal service: 7406 tons

Full load: 8145 tons

Loading submergence 629 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.42

Shellfire needed to sink: 12449 lbs = 199.2 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.8

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 63 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.09

Relative quality as a seaboat: 1.26

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 9.41

'Natural speed' for length = 24.5 knots

Power going to wave formation

at top speed: 48 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 85 percent

Relative accommodation and working space: 160 percent

Displacement factor: 136 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.13

(Structure weight per square

foot of hull surface: 97 lbs)

Relative longitudinal hull strength: 0.97

(for 16.5 ft average freeboard;

freeboard adjustment +2.2 ft)

Relative composite hull strength: 1.01

**Nagara class**

Nagara, laid down 1917

Length, 640 ft x Beam, 60.0 ft x Depth, 15.0 ft

7899 tons normal displacement (6840 tons standard)

Main battery: 12 x 5.0-inch

Secondary battery: 10 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 945 lbs

4 TT, 21.0"

Main belt, 2.0 inches; bow and stern, 1.0 inches

Upper belt, 1.0 inches

Armor deck, average 1.5 inches

C.T., 2.0 inches

Battery armor:

Main, 1.0" shields / secondary, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 39167 shp = 27.50 knots

Approximate cruising radius, 12000 nm / 12 kts

Typical complement: 419-545

Estimated cost, $3.864 million (£966,000)

Remarks:

Oil firing.

Relative extent of belt armor, 75 percent of 'typical' coverage.

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 118 tons = 1 pct

Armor, total ..................... 1120 tons = 14 pct

Belt 396 tons = 5 pct

Deck 652 tons = 8 pct

C.T. 17 tons = 0 pct

Armament 56 tons = 1 pct

Machinery ........................ 1436 tons = 18 pct

Hull and fittings; equipment ..... 3929 tons = 50 pct

Fuel, ammunition, stores ......... 1297 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

7899 tons = 100 pct

Estimated metacentric height, 4.1 ft

Displacement summary:

Light ship: 6603 tons

Standard displacement: 6840 tons

Normal service: 7899 tons

Full load: 8716 tons

Loading submergence 671 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.39

Shellfire needed to sink: 15532 lbs = 248.5 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 64 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.09

Relative quality as a seaboat: 1.28

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 9.83

'Natural speed' for length = 25.3 knots

Power going to wave formation

at top speed: 43 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 71 percent

Relative accommodation and working space: 162 percent

Displacement factor: 160 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.32

(Structure weight per square

foot of hull surface: 111 lbs)

Relative longitudinal hull strength: 0.97

(for 16.3 ft average freeboard;

freeboard adjustment +1.9 ft)

Relative composite hull strength: 1.05

**Naka class**

(used 1927 as base)

Naka, laid down 1927

Length, 600 ft x Beam, 60.0 ft x Depth, 17.0 ft

8743 tons normal displacement (7375 tons standard)

Main battery: 8 x 5.0-inch (4 x 2; 2 superfiring)

Secondary battery: 12 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 722 lbs

4 TT, 21.0"

Main belt, 3.0 inches; ends unarmored

Upper belt, 1.0 inches

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 3.0" / secondary, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 72848 shp = 31.50 knots

Approximate cruising radius, 11000 nm / 15 kts

Typical complement: 452-588

Estimated cost, $9.420 million (£2.355 million)

Remarks:

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 90 tons = 1 pct

Armor, total ..................... 1238 tons = 14 pct

Belt 574 tons = 7 pct

Deck 419 tons = 5 pct

C.T. 18 tons = 0 pct

Armament 228 tons = 3 pct

Machinery ........................ 2299 tons = 26 pct

Hull and fittings; equipment ..... 3512 tons = 40 pct

Fuel, ammunition, stores ......... 1603 tons = 18 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

8743 tons = 100 pct

Estimated metacentric height, 4.1 ft

Displacement summary:

Light ship: 7140 tons

Standard displacement: 7375 tons

Normal service: 8743 tons

Full load: 9802 tons

Loading submergence 646 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.38

Shellfire needed to sink: 12361 lbs = 197.8 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.7

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 52 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.13

Relative quality as a seaboat: 1.04

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.91

'Natural speed' for length = 24.5 knots

Power going to wave formation

at top speed: 54 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 94 percent

Relative accommodation and working space: 150 percent

Displacement factor: 133 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.10

(Structure weight per square

foot of hull surface: 100 lbs)

Relative longitudinal hull strength: 1.01

(for 17.0 ft average freeboard;

freeboard adjustment +2.3 ft)

Relative composite hull strength: 1.03

**Agano class**

(used 1928 as base)

Agano, laid down 1928

Length, 605 ft x Beam, 60.0 ft x Depth, 17.1 ft

8868 tons normal displacement (7283 tons standard)

Main battery: 8 x 5.0-inch (4 x 2; 2 superfiring)

Secondary battery: 10 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 695 lbs

4 TT, 21.0"

Main belt, 3.0 inches; ends unarmored

Upper belt, 1.0 inches

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 3.0" / secondary, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 68636 shp = 31.00 knots

Approximate cruising radius, 12700 nm / 15 kts

Typical complement: 457-594

Estimated cost, $9.451 million (£2.363 million)

Remarks:

Relative extent of belt armor, 90 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 87 tons = 1 pct

Armor, total ..................... 1181 tons = 13 pct

Belt 520 tons = 6 pct

Deck 422 tons = 5 pct

C.T. 18 tons = 0 pct

Armament 220 tons = 2 pct

Machinery ........................ 2137 tons = 24 pct

Hull and fittings; equipment ..... 3644 tons = 41 pct

Fuel, ammunition, stores ......... 1819 tons = 21 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

8868 tons = 100 pct

Estimated metacentric height, 4.2 ft

Displacement summary:

Light ship: 7048 tons

Standard displacement: 7283 tons

Normal service: 8868 tons

Full load: 10099 tons

Loading submergence 652 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.41

Shellfire needed to sink: 13267 lbs = 212.3 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.8

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 52 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.11

Relative quality as a seaboat: 1.03

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.94

'Natural speed' for length = 24.6 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 86 percent

Relative accommodation and working space: 141 percent

Displacement factor: 144 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.17

(Structure weight per square

foot of hull surface: 105 lbs)

Relative longitudinal hull strength: 0.97

(for 16.0 ft average freeboard;

freeboard adjustment +1.2 ft)

Relative composite hull strength: 1.02

Walter

Edited by: Rooijen10 at: 4/18/03 1:55:15 pm

Rooijen10

Spammer wanna be

Posts: 72

(4/18/03 10:28:34 am)

**Japan's Coast Defense Ships**

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Coast Defense Ships:

Coast Defense Ship

**Atsusa class**

Atsusa, laid down 1922

Length, 400 ft x Beam, 55.0 ft x Depth, 12.0 ft

4149 tons normal displacement (3838 tons standard)

Main battery: 4 x 9.0-inch (2 x 2)

AA battery: 8 x 2.0-inch

Light battery: 20 x 1.0-inch

Weight of broadside: 1500 lbs

Main belt, 4.0 inches; bow and stern, 2.0 inches

Upper belt, 2.0 inches

Armor deck, average 1.0 inches

C.T., 4.0 inches

Battery armor:

Main, 4.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 9620 shp = 20.00 knots

Approximate cruising radius, 5900 nm / 12 kts

Typical complement: 258-336

Estimated cost, $3.603 million (£901,000)

Remarks:

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 188 tons = 5 pct

Armor, total ..................... 1172 tons = 28 pct

Belt 662 tons = 16 pct

Deck 273 tons = 7 pct

C.T. 22 tons = 1 pct

Armament 215 tons = 5 pct

Machinery ........................ 326 tons = 8 pct

Hull and fittings; equipment ..... 1924 tons = 46 pct

Fuel, ammunition, stores ......... 519 tons = 13 pct

Miscellaneous weights ............ 20 tons = 0 pct

-----

4149 tons = 100 pct

Estimated metacentric height, 3.1 ft

Displacement summary:

Light ship: 3630 tons

Standard displacement: 3838 tons

Normal service: 4149 tons

Full load: 4380 tons

Loading submergence 421 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.26

Shellfire needed to sink: 8651 lbs = 23.7 x 9.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.1

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 62 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.39

Relative quality as a seaboat: 1.25

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.39

Hull speed coefficient 'M' = 7.61

'Natural speed' for length = 20.0 knots

Power going to wave formation

at top speed: 45 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 62 percent

Relative accommodation and working space: 138 percent

Displacement factor: 123 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.99

(Structure weight per square

foot of hull surface: 95 lbs)

Relative longitudinal hull strength: 1.27

(for 12.7 ft average freeboard)

Relative composite hull strength: 1.01

Monitor

**Atataka class**

Atatake, laid down 1924

Length, 430 ft x Beam, 60.0 ft x Depth, 20.0 ft

8109 tons normal displacement (7299 tons standard)

Main battery: 4 x 12.0-inch (2 x 2)

Secondary battery: 4 x 5.0-inch (4 x 1)

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 3766 lbs

Main belt, 7.0 inches; bow and stern, 2.0 inches

Upper belt, 3.0 inches

Armor deck, average 1.0 inches

C.T., 8.0 inches

Battery armor:

Main, 7.0" / secondary, 4.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 20042 shp = 22.00 knots

Approximate cruising radius, 11000 nm / 12 kts

Typical complement: 427-555

Estimated cost, $8.984 million (£2.246 million)

Remarks:

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 471 tons = 6 pct

Armor, total ..................... 2211 tons = 27 pct

Belt 1163 tons = 14 pct

Deck 320 tons = 4 pct

C.T. 70 tons = 1 pct

Armament 658 tons = 8 pct

Machinery ........................ 660 tons = 8 pct

Hull and fittings; equipment ..... 3481 tons = 43 pct

Fuel, ammunition, stores ......... 1286 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

8109 tons = 100 pct

Estimated metacentric height, 2.7 ft

Displacement summary:

Light ship: 6823 tons

Standard displacement: 7299 tons

Normal service: 8109 tons

Full load: 8724 tons

Loading submergence 494 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.09

Shellfire needed to sink: 10915 lbs = 12.6 x 12.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.0

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 57 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.74

Relative quality as a seaboat: 1.13

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.39

Hull speed coefficient 'M' = 6.55

'Natural speed' for length = 20.7 knots

Power going to wave formation

at top speed: 51 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 72 percent

Relative accommodation and working space: 108 percent

Displacement factor: 110 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.02

(Structure weight per square

foot of hull surface: 134 lbs)

Relative longitudinal hull strength: 1.84

(for 14.0 ft average freeboard;

freeboard adjustment -0.5 ft)

Relative composite hull strength: 1.08

Walter

Edited by: Rooijen10 at: 4/18/03 1:57:04 pm

Rooijen10

Spammer wanna be

Posts: 73

(4/18/03 10:53:09 am)

**Japan's Sloops**

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Sloops:

**Tsubame class**

Tsubame, laid down 1924

Length, 300 ft x Beam, 38.0 ft x Depth, 9.0 ft

1466 tons normal displacement (1306 tons standard)

Main battery: 4 x 5.0-inch (4 x 1)

AA battery: 6 x 2.0-inch

Light battery: 12 x 1.0-inch

Weight of broadside: 280 lbs

Main belt, 2.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 5364 shp = 20.00 knots

Approximate cruising radius, 6000 nm / 12 kts

Typical complement: 118-154

Estimated cost, $1.212 million (£303,000)

Remarks:

Relative extent of belt armor, 65 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 35 tons = 2 pct

Armor, total ..................... 278 tons = 19 pct

Belt 79 tons = 5 pct

Deck 133 tons = 9 pct

C.T. 6 tons = 0 pct

Armament 61 tons = 4 pct

Machinery ........................ 177 tons = 12 pct

Hull and fittings; equipment ..... 764 tons = 52 pct

Fuel, ammunition, stores ......... 213 tons = 14 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

1466 tons = 100 pct

Estimated metacentric height, 1.8 ft

Displacement summary:

Light ship: 1253 tons

Standard displacement: 1306 tons

Normal service: 1466 tons

Full load: 1588 tons

Loading submergence 205 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.28

Shellfire needed to sink: 3391 lbs = 54.3 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 57 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.24

Relative quality as a seaboat: 1.13

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.36

Hull speed coefficient 'M' = 8.07

'Natural speed' for length = 17.3 knots

Power going to wave formation

at top speed: 50 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 59 percent

Relative accommodation and working space: 115 percent

Displacement factor: 158 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.26

(Structure weight per square

foot of hull surface: 73 lbs)

Relative longitudinal hull strength: 1.65

(for 10.0 ft average freeboard;

freeboard adjustment -0.3 ft)

Relative composite hull strength: 1.29

**Suzume class**

Suzume, laid down 1924

Length, 350 ft x Beam, 36.0 ft x Depth, 10.0 ft

1728 tons normal displacement (1493 tons standard)

Main battery: 4 x 5.0-inch (4 x 1)

AA battery: 4 x 2.0-inch

Light battery: 16 x 1.0-inch

Weight of broadside: 274 lbs

Main belt, 2.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 7876 shp = 22.00 knots

Approximate cruising radius, 8000 nm / 12 kts

Typical complement: 134-174

Estimated cost, $1.426 million (£356,000)

Remarks:

Relative extent of belt armor, 70 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 34 tons = 2 pct

Armor, total ..................... 305 tons = 18 pct

Belt 94 tons = 5 pct

Deck 143 tons = 8 pct

C.T. 6 tons = 0 pct

Armament 62 tons = 4 pct

Machinery ........................ 259 tons = 15 pct

Hull and fittings; equipment ..... 837 tons = 48 pct

Fuel, ammunition, stores ......... 292 tons = 17 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

1728 tons = 100 pct

Estimated metacentric height, 1.7 ft

Displacement summary:

Light ship: 1436 tons

Standard displacement: 1493 tons

Normal service: 1728 tons

Full load: 1909 tons

Loading submergence 220 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.28

Shellfire needed to sink: 3419 lbs = 54.7 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 59 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.26

Relative quality as a seaboat: 1.17

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.91

'Natural speed' for length = 18.7 knots

Power going to wave formation

at top speed: 48 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 65 percent

Relative accommodation and working space: 110 percent

Displacement factor: 155 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.24

(Structure weight per square

foot of hull surface: 70 lbs)

Relative longitudinal hull strength: 1.25

(for 10.0 ft average freeboard;

freeboard adjustment -0.7 ft)

Relative composite hull strength: 1.25

**Aosagi class**

Aosagi, laid down 1924

Length, 240 ft x Beam, 35.0 ft x Depth, 8.0 ft

960 tons normal displacement (834 tons standard)

Main battery: 4 x 4.0-inch (4 x 1)

AA battery: 4 x 2.0-inch

Light battery: 10 x 1.0-inch

Weight of broadside: 149 lbs

Main belt, 2.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 3732 shp = 19.00 knots

Approximate cruising radius, 6000 nm / 12 kts

Typical complement: 86-112

Estimated cost, $753,000 (£188,000)

Remarks:

Relative extent of belt armor, 60 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 19 tons = 2 pct

Armor, total ..................... 204 tons = 21 pct

Belt 57 tons = 6 pct

Deck 98 tons = 10 pct

C.T. 4 tons = 0 pct

Armament 46 tons = 5 pct

Machinery ........................ 123 tons = 13 pct

Hull and fittings; equipment ..... 456 tons = 48 pct

Fuel, ammunition, stores ......... 158 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

960 tons = 100 pct

Estimated metacentric height, 1.7 ft

Displacement summary:

Light ship: 802 tons

Standard displacement: 834 tons

Normal service: 960 tons

Full load: 1057 tons

Loading submergence 151 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.30

Shellfire needed to sink: 2368 lbs = 74.0 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 52 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.17

Relative quality as a seaboat: 1.05

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.38

Hull speed coefficient 'M' = 7.43

'Natural speed' for length = 15.5 knots

Power going to wave formation

at top speed: 55 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 58 percent

Relative accommodation and working space: 111 percent

Displacement factor: 157 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.13

(Structure weight per square

foot of hull surface: 59 lbs)

Relative longitudinal hull strength: 1.99

(for 9.5 ft average freeboard)

Relative composite hull strength: 1.20

Walter

Edited by: Rooijen10 at: 4/18/03 1:58:59 pm

King of Riva

Spammer wanna be

Posts: 47

(4/18/03 11:16:15 am)

**Re: Japan's Sloops**

--------------------------------------------------------------------------------

Nice posts but there is something I have to comment:

Your ships seem to carry far too many light AA guns. Beg your pardon, but 20 2" guns and 40 1" guns on a 1924er design?

Even late in WW2 many, many units did not carry that many light guns. Only a few CVs, BBs, BCs and maybe some CAs did so. And, set aside the fact for a moment that in the 20s there was no reason and no understanding for such an armament, you will not be able to place all those guns on a hull smaller than a large cruisers due to topweight restrictions and more than that: deckspace!

I would really like to see a linedrawing of a 1300ts sloop carrying not only her 4 main guns but also 60 (!!!) small AA guns. Maybe she can carry them but they will have no fire arcs, there will be no space left for the crews, not enough spacing between the guns to allow them to train etc. And there will be no room left for superstructure, funnel, mast(s) etc. :)

I know springstyle allows so many guns. The reason is most likely, that ss calculations work with weight instead of deckspace but this doesn´t mean it is realistic.

I´m sure you can do better than that. And there are not only those "heavy armned" sloops, 120 light AA guns on Fuso? 150 on Kii? Did even IOWA ever carry that many AA guns? Hey, good morning! :) This is 1920 after all!!! ;)

Ciao,

HoOmAn

PS: The most funny thing is Hosho with its 90 guns. Why? Well, that 8000ts carrier surely needs all its deckspace to start and land planes thereon so there is even less left for AA guns.....

Rooijen10

Spammer wanna be

Posts: 74

(4/18/03 11:31:42 am)

**Re: Japan's Sloops**

--------------------------------------------------------------------------------

:)

Well this is how the designs are at the moment. Changes will occur. I too believe I went a bit crazy with the number of AAs. When they are readjusted, I'll edit the posts and change the data like I did with those twins.

And remember. It'll be quite hazardous to land on the Hosho with all those AA guns in the way. ;)

Walter

PS: There are two things that surprise me: 1) that you made no remark on the two quads on the Jakumo; 2) that you made no remark about the triple mains and triple secondaries on the Zuiho (I doubt that is realistic in 1920); 3) that you didn't make this remark when I posted the partial data in the Meeting Place forum. That data has been there for a while now.

Edited by: Rooijen10 at: 4/18/03 2:02:04 pm

Spammer wanna be

Posts: 68

(4/18/03 8:37:42 am)

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Battleships:

Fuso, laid down 1914

Length, 710 ft x Beam, 104.0 ft x Depth, 30.0 ft

35443 tons normal displacement (31639 tons standard)

Main battery: 12 x 14.0-inch (6 x 2; 2 superfiring)

Secondary battery: 16 x 5.0-inch

AA battery: 18 x 2.0-inch

Light battery: 42 x 1.0-inch

Weight of broadside: 17557 lbs

6 TT, 21.0" (submerged)

Main belt, 12.0 inches; bow and stern, 3.5 inches

Upper belt, 7.0 inches

Torpedo bulkhead, 2.0 inches

Armor deck, average 2.5 inches

C.T., 13.0 inches

Battery armor:

Main, 11.0" / secondary, 4.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 60064 shp = 24.00 knots

Approximate cruising radius, 16000 nm / 12 kts

Typical complement: 1292-1679

Estimated cost, $16.285 million (£4.071 million)

Remarks:

Oil firing.

Relative extent of belt armor, 91 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

3 float planes + 1 catapult (100 tons misc. load)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 2195 tons = 6 pct

Armor, total ..................... 11376 tons = 32 pct

Belt 4008 tons = 11 pct

Torpedo bulkhead 1025 tons = 3 pct

Deck 2316 tons = 7 pct

C.T. 303 tons = 1 pct

Armament 3725 tons = 11 pct

Machinery ........................ 2314 tons = 7 pct

Hull and fittings; equipment ..... 13483 tons = 38 pct

Fuel, ammunition, stores ......... 5976 tons = 17 pct

Miscellaneous weights ............ 100 tons = 0 pct

-----

35443 tons = 100 pct

Estimated metacentric height, 6.7 ft

Displacement summary:

Light ship: 29468 tons

Standard displacement: 31639 tons

Normal service: 35443 tons

Full load: 38344 tons

Loading submergence 1431 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.13

Shellfire needed to sink: 35433 lbs = 25.8 x 14.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 5.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 55 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.47

Relative quality as a seaboat: 1.11

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.56

Sharpness coefficient: 0.40

Hull speed coefficient 'M' = 6.61

'Natural speed' for length = 26.6 knots

Power going to wave formation

at top speed: 44 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 90 percent

Relative accommodation and working space: 126 percent

Displacement factor: 106 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.02

(Structure weight per square

foot of hull surface: 199 lbs)

Relative longitudinal hull strength: 1.03

(for 17.0 ft average freeboard;

freeboard adjustment -2.5 ft)

Relative composite hull strength: 1.02

Nagato.txt, laid down 1918

Length, 800 ft x Beam, 105.0 ft x Depth, 31.0 ft

44640 tons normal displacement (39624 tons standard)

Main battery: 12 x 14.0-inch (4 x 3; 2 superfiring)

Secondary battery: 20 x 5.0-inch

AA battery: 21 x 2.0-inch

Light battery: 36 x 1.0-inch

Weight of broadside: 17816 lbs

8 TT, 21.0" (4 submerged)

Main belt, 12.0 inches; bow and stern, 3.5 inches

Upper belt, 8.0 inches

Torpedo bulkhead, 2.0 inches

Armor deck, average 2.5 inches

C.T., 14.0 inches

Battery armor:

Main, 12.0" / secondary, 4.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 121006 shp = 28.00 knots

Approximate cruising radius, 13000 nm / 15 kts

Typical complement: 1536-1996

Estimated cost, $30.284 million (£7.571 million)

Remarks:

Oil firing.

Relative extent of belt armor, 91 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

3 float planes + 1 catapult (100 tons misc. load)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 2227 tons = 5 pct

Armor, total ..................... 12967 tons = 29 pct

Belt 4633 tons = 10 pct

Torpedo bulkhead 1193 tons = 3 pct

Deck 2759 tons = 6 pct

C.T. 381 tons = 1 pct

Armament 4000 tons = 9 pct

Machinery ........................ 4365 tons = 10 pct

Hull and fittings; equipment ..... 17587 tons = 39 pct

Fuel, ammunition, stores ......... 7393 tons = 17 pct

Miscellaneous weights ............ 100 tons = 0 pct

-----

44640 tons = 100 pct

Estimated metacentric height, 6.7 ft

Displacement summary:

Light ship: 37247 tons

Standard displacement: 39624 tons

Normal service: 44640 tons

Full load: 48474 tons

Loading submergence 1704 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.13

Shellfire needed to sink: 47475 lbs = 34.6 x 14.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 6.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 56 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.53

Relative quality as a seaboat: 1.11

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.60

Sharpness coefficient: 0.40

Hull speed coefficient 'M' = 6.90

'Natural speed' for length = 28.3 knots

Power going to wave formation

at top speed: 48 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 90 percent

Relative accommodation and working space: 150 percent

Displacement factor: 114 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.05

(Structure weight per square

foot of hull surface: 212 lbs)

Relative longitudinal hull strength: 1.05

(for 20.9 ft average freeboard;

freeboard adjustment +0.5 ft)

Relative composite hull strength: 1.05

(I'm not sure when to lay it down yet so I used 1923 as base)

Kii, laid down 1923

Length, 800 ft x Beam, 104.0 ft x Depth, 32.0 ft

44120 tons normal displacement (39278 tons standard)

Main battery: 10 x 15.0-inch (2x3 and 2x2 turrets; 2 superfiring)

Secondary battery: 20 x 5.0-inch

AA battery: 24 x 2.0-inch

Light battery: 42 x 1.0-inch

Weight of broadside: 18242 lbs

Main belt, 14.0 inches; bow and stern, 3.5 inches

Upper belt, 7.0 inches

Torpedo bulkhead, 3.0 inches

Armor deck, average 3.0 inches

C.T., 14.0 inches

Battery armor:

Main, 13.0" / secondary, 2.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 110889 shp = 27.50 knots

Approximate cruising radius, 14000 nm / 15 kts

Typical complement: 1522-1979

Estimated cost, $43.345 million (£10.836 million)

Remarks:

Relative extent of belt armor, 88 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

3 float planes + 1 catapult (100 tons misc. load)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 2280 tons = 5 pct

Armor, total ..................... 14231 tons = 32 pct

Belt 4778 tons = 11 pct

Torpedo bulkhead 1847 tons = 4 pct

Deck 3206 tons = 7 pct

C.T. 378 tons = 1 pct

Armament 4022 tons = 9 pct

Machinery ........................ 3706 tons = 8 pct

Hull and fittings; equipment ..... 16558 tons = 38 pct

Fuel, ammunition, stores ......... 7244 tons = 16 pct

Miscellaneous weights ............ 100 tons = 0 pct

-----

44120 tons = 100 pct

Estimated metacentric height, 6.4 ft

Displacement summary:

Light ship: 36876 tons

Standard displacement: 39278 tons

Normal service: 44120 tons

Full load: 47817 tons

Loading submergence 1650 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.10

Shellfire needed to sink: 47914 lbs = 28.4 x 15.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 7.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 56 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.55

Relative quality as a seaboat: 1.13

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.58

Sharpness coefficient: 0.39

Hull speed coefficient 'M' = 6.93

'Natural speed' for length = 28.3 knots

Power going to wave formation

at top speed: 47 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 84 percent

Relative accommodation and working space: 144 percent

Displacement factor: 111 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.00

(Structure weight per square

foot of hull surface: 204 lbs)

Relative longitudinal hull strength: 1.00

(for 19.9 ft average freeboard;

freeboard adjustment -0.5 ft)

Relative composite hull strength: 1.00

Walter

Edited by: Rooijen10 at: 4/18/03 2:15:49 pm

Rooijen10

Spammer wanna be

Posts: 69

(4/18/03 8:47:39 am)

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Carriers:

Hosho, laid down 1919

Length, 590 ft x Beam, 60.0 ft x Depth, 20.0 ft

9507 tons normal displacement (7623 tons standard)

42 Planes

Main battery: 4 x 5.0-inch (4 x 1)

AA battery: 15 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 322 lbs

Hull unarmored

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 65557 shp = 30.35 knots

Approximate cruising radius, 13000 nm / 15 kts

Typical complement: 481-626

Estimated cost, $5.402 million (£1.350 million)

Remarks:

Oil firing.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 40 tons = 0 pct

Armor, total ..................... 88 tons = 1 pct

Armament 88 tons = 1 pct

Machinery ........................ 2328 tons = 24 pct

Hull and fittings; equipment ..... 3149 tons = 33 pct

Fuel, ammunition, stores ......... 2102 tons = 22 pct

Miscellaneous weights ............ 1800 tons = 19 pct

-----

9507 tons = 100 pct

Estimated metacentric height, 3.3 ft

Displacement summary:

Light ship: 7406 tons

Standard displacement: 7623 tons

Normal service: 9507 tons

Full load: 10977 tons

Loading submergence 610 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.21

Shellfire needed to sink: 10011 lbs = 160.2 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 57 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.06

Relative quality as a seaboat: 1.15

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.47

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.52

'Natural speed' for length = 24.3 knots

Power going to wave formation

at top speed: 52 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 104 percent

Relative accommodation and working space: 139 percent

Displacement factor: 138 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.05

(Structure weight per square

foot of hull surface: 91 lbs)

Relative longitudinal hull strength: 1.05

(for 16.5 ft average freeboard;

freeboard adjustment +1.5 ft)

Relative composite hull strength: 1.05

Zuiho, laid down 1920

Length, 750 ft x Beam, 105.0 ft x Depth, 26.5 ft

29813 tons normal displacement (26756 tons standard)

80 planes

Main battery: 6 x 8.0-inch (3 x 2)

Secondary battery: 10 x 5.0-inch (5 x 2)

AA battery: 12 x 2.0-inch

Light battery: 30 x 1.0-inch

Weight of broadside: 2224 lbs

Main belt, 11.0 inches; bow and stern, 3.5 inches

Upper belt, 7.0 inches

Torpedo bulkhead, 2.0 inches

Armor deck, average 2.0 inches

C.T., 10.0 inches

Battery armor:

Main, 3.0" / secondary, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 76048 shp = 26.50 knots

Approximate cruising radius, 11000 nm / 15 kts

Typical complement: 1134-1475

Estimated cost, $14.323 million (£3.581 million)

Remarks:

Relative extent of belt armor, 84 percent of 'typical' coverage.

Ship has slow, easy roll; a good, steady gun platform.

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 278 tons = 1 pct

Armor, total ..................... 7123 tons = 24 pct

Belt 3686 tons = 12 pct

Torpedo bulkhead 956 tons = 3 pct

Deck 1831 tons = 6 pct

C.T. 208 tons = 1 pct

Armament 442 tons = 1 pct

Machinery ........................ 2659 tons = 9 pct

Hull and fittings; equipment ..... 9515 tons = 32 pct

Fuel, ammunition, stores ......... 3838 tons = 13 pct

Miscellaneous weights ............ 6400 tons = 21 pct

-----

29813 tons = 100 pct

Estimated metacentric height, 7.5 ft

Displacement summary:

Light ship: 25975 tons

Standard displacement: 26756 tons

Normal service: 29813 tons

Full load: 32138 tons

Loading submergence 1414 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.20

Shellfire needed to sink: 43681 lbs = 170.6 x 8.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 7.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 73 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.08

Relative quality as a seaboat: 1.46

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.37

Hull speed coefficient 'M' = 7.40

'Natural speed' for length = 27.4 knots

Power going to wave formation

at top speed: 44 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 75 percent

Relative accommodation and working space: 175 percent

Displacement factor: 142 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.04

(Structure weight per square

foot of hull surface: 138 lbs)

Relative longitudinal hull strength: 1.02

(for 21.0 ft average freeboard;

freeboard adjustment +2.2 ft)

Relative composite hull strength: 1.02

(I'm not sure when to lay it down yet so I used 1924 as base, keeping the Kii in mind)

Soryu, laid down 1924

Length, 700 ft x Beam, 75.0 ft x Depth, 24.0 ft

16200 tons normal displacement (13998 tons standard)

70 planes

Main battery: 12 x 5.0-inch (6 x 2)

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 810 lbs

Main belt, 2.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 4.0 inches

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 62800 shp = 28.00 knots

Approximate cruising radius, 12000 nm / 15 kts

Typical complement: 718-933

Estimated cost, $10.520 million (£2.630 million)

Remarks:

Relative extent of belt armor, 84 percent of 'typical' coverage.

Ship has slow, easy roll; a good, steady gun platform.

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 101 tons = 1 pct

Armor, total ..................... 1150 tons = 7 pct

Belt 328 tons = 2 pct

Deck 569 tons = 4 pct

C.T. 55 tons = 0 pct

Armament 198 tons = 1 pct

Machinery ........................ 2069 tons = 13 pct

Hull and fittings; equipment ..... 5386 tons = 33 pct

Fuel, ammunition, stores ......... 2594 tons = 16 pct

Miscellaneous weights ............ 4900 tons = 30 pct

-----

16200 tons = 100 pct

Estimated metacentric height, 3.5 ft

Displacement summary:

Light ship: 13606 tons

Standard displacement: 13998 tons

Normal service: 16200 tons

Full load: 17897 tons

Loading submergence 879 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 20527 lbs = 328.4 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.6

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 71 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.10

Relative quality as a seaboat: 1.43

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.46

'Natural speed' for length = 26.5 knots

Power going to wave formation

at top speed: 44 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 80 percent

Relative accommodation and working space: 147 percent

Displacement factor: 147 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.08

(Structure weight per square

foot of hull surface: 112 lbs)

Relative longitudinal hull strength: 0.99

(for 18.0 ft average freeboard;

freeboard adjustment +1.3 ft)

Relative composite hull strength: 1.01

Walter

Edited by: Rooijen10 at: 4/18/03 2:18:29 pm

Rooijen10

Spammer wanna be

Posts: 70

(4/18/03 9:29:04 am)

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Heavy Cruisers:

Asama, laid down 1912

Length, 500 ft x Beam, 65.0 ft x Depth, 26.0 ft

12071 tons normal displacement (10218 tons standard)

Main battery: 14 x 8.0-inch (8 turrets)

Secondary battery: 10 x 6.0-inch

QF battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 4724 lbs

4 TT, 21.0"

Main belt, 7.0 inches; bow and stern, 2.0 inches

Upper belt, 2.0 inches

Armor deck, average 2.0 inches

C.T., 13.0 inches

Battery armor:

Main, 6.0" / secondary, 3.0"

QF, 1.0" shields / light guns, 1.0" shields

Maximum speed for 38997 shp = 25.00 knots

Approximate cruising radius, 14000 nm / 12 kts

Typical complement: 576-749

Estimated cost, $4.196 million (£1.049 million)

Remarks:

Oil firing.

Relative extent of belt armor, 85 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 591 tons = 5 pct

Armor, total ..................... 3119 tons = 26 pct

Belt 1082 tons = 9 pct

Deck 756 tons = 6 pct

C.T. 147 tons = 1 pct

Armament 1133 tons = 9 pct

Machinery ........................ 1555 tons = 13 pct

Hull and fittings; equipment ..... 4319 tons = 36 pct

Fuel, ammunition, stores ......... 2489 tons = 21 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

12071 tons = 100 pct

Estimated metacentric height, 3.0 ft

Displacement summary:

Light ship: 9583 tons

Standard displacement: 10218 tons

Normal service: 12071 tons

Full load: 13506 tons

Loading submergence 584 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.08

Shellfire needed to sink: 13428 lbs = 52.5 x 8.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.1

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 52 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.66

Relative quality as a seaboat: 1.03

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.36

Hull speed coefficient 'M' = 6.67

'Natural speed' for length = 22.4 knots

Power going to wave formation

at top speed: 52 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 80 percent

Relative accommodation and working space: 92 percent

Displacement factor: 110 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.03

(Structure weight per square

foot of hull surface: 131 lbs)

Relative longitudinal hull strength: 1.63

(for 14.8 ft average freeboard;

freeboard adjustment -0.9 ft)

Relative composite hull strength: 1.08

Jakumo, laid down 1914

Length, 550 ft x Beam, 70.0 ft x Depth, 25.0 ft

13750 tons normal displacement (11404 tons standard)

Main battery: 8 x 8.0-inch (2 x 4) (!)

Secondary battery: 12 x 6.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 3404 lbs

4 TT, 21.0"

Main belt, 8.0 inches; bow and stern, 2.0 inches

Upper belt, 3.0 inches

Armor deck, average 2.5 inches

C.T., 12.0 inches

Battery armor:

Main, 8.0" / secondary, 3.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 55199 shp = 27.00 knots

Approximate cruising radius, 18000 nm / 12 kts

Typical complement: 635-825

Estimated cost, $5.267 million (£1.317 million)

Remarks:

Oil firing.

Relative extent of belt armor, 80 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 426 tons = 3 pct

Armor, total ..................... 3291 tons = 24 pct

Belt 1370 tons = 10 pct

Deck 1119 tons = 8 pct

C.T. 149 tons = 1 pct

Armament 654 tons = 5 pct

Machinery ........................ 2126 tons = 15 pct

Hull and fittings; equipment ..... 5002 tons = 36 pct

Fuel, ammunition, stores ......... 2905 tons = 21 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

13750 tons = 100 pct

Estimated metacentric height, 4.4 ft

Displacement summary:

Light ship: 10845 tons

Standard displacement: 11404 tons

Normal service: 13750 tons

Full load: 15572 tons

Loading submergence 691 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.26

Shellfire needed to sink: 18610 lbs = 72.7 x 8.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.5

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 54 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.34

Relative quality as a seaboat: 1.08

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.36

Hull speed coefficient 'M' = 7.02

'Natural speed' for length = 23.5 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 75 percent

Relative accommodation and working space: 108 percent

Displacement factor: 126 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.07

(Structure weight per square

foot of hull surface: 133 lbs)

Relative longitudinal hull strength: 1.52

(for 16.0 ft average freeboard;

freeboard adjustment -0.1 ft)

Relative composite hull strength: 1.11

(I'm not sure when to lay it down yet so I used 1926 as base, keeping the Kii and Soryu in mind)

Furutaka, laid down 1926

Length, 720 ft x Beam, 60.0 ft x Depth, 22.0 ft

14935 tons normal displacement (12672 tons standard)

Main battery: 8 x 8.0-inch (4 x 2; 2 superfiring)

Secondary battery: 10 x 5.0-inch (6 turrets)

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 2733 lbs

4 TT, 21.0"

Main belt, 4.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 1.0 inches

Battery armor:

Main, 3.0" / secondary, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 127428 shp = 34.00 knots

Approximate cruising radius, 13000 nm / 15 kts

Typical complement: 675-878

Estimated cost, $17.730 million (£4.433 million)

Remarks:

Relative extent of belt armor, 114 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 342 tons = 2 pct

Armor, total ..................... 1819 tons = 12 pct

Belt 800 tons = 5 pct

Deck 535 tons = 4 pct

C.T. 13 tons = 0 pct

Armament 471 tons = 3 pct

Machinery ........................ 4079 tons = 27 pct

Hull and fittings; equipment ..... 5906 tons = 40 pct

Fuel, ammunition, stores ......... 2789 tons = 19 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

14935 tons = 100 pct

Estimated metacentric height, 3.4 ft

Displacement summary:

Light ship: 12145 tons

Standard displacement: 12672 tons

Normal service: 14935 tons

Full load: 16686 tons

Loading submergence 827 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.24

Shellfire needed to sink: 15245 lbs = 59.5 x 8.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.6

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 51 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.51

Relative quality as a seaboat: 1.02

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.94

'Natural speed' for length = 26.8 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 106 percent

Relative accommodation and working space: 149 percent

Displacement factor: 118 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.10

(Structure weight per square

foot of hull surface: 123 lbs)

Relative longitudinal hull strength: 0.98

(for 19.5 ft average freeboard;

freeboard adjustment +3.1 ft)

Relative composite hull strength: 1.01

Walter

Edited by: Rooijen10 at: 4/18/03 1:51:49 pm

Rooijen10

Spammer wanna be

Posts: 71

(4/18/03 10:05:59 am)

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Light Cruisers:

Tenryu, laid down 1914

Length, 500 ft x Beam, 55.0 ft x Depth, 16.0 ft

6034 tons normal displacement (5137 tons standard)

Main battery: 12 x 5.0-inch

Secondary battery: 10 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 945 lbs

4 TT, 21.0"

Main belt, 4.0 inches; bow and stern, 1.0 inches

Upper belt, 2.0 inches

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 1.0" shields / secondary, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 38892 shp = 28.00 knots

Approximate cruising radius, 11000 nm / 12 kts

Typical complement: 342-445

Estimated cost, $2.453 million (£613,000)

Remarks:

Oil firing.

Relative extent of belt armor, 98 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 118 tons = 2 pct

Armor, total ..................... 1114 tons = 18 pct

Belt 737 tons = 12 pct

Deck 311 tons = 5 pct

C.T. 14 tons = 0 pct

Armament 52 tons = 1 pct

Machinery ........................ 1498 tons = 25 pct

Hull and fittings; equipment ..... 2207 tons = 37 pct

Fuel, ammunition, stores ......... 1097 tons = 18 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

6034 tons = 100 pct

Estimated metacentric height, 3.9 ft

Displacement summary:

Light ship: 4937 tons

Standard displacement: 5137 tons

Normal service: 6034 tons

Full load: 6728 tons

Loading submergence 481 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.46

Shellfire needed to sink: 8115 lbs = 129.8 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 54 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.10

Relative quality as a seaboat: 1.08

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.34

Hull speed coefficient 'M' = 8.40

'Natural speed' for length = 22.4 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 96 percent

Relative accommodation and working space: 126 percent

Displacement factor: 119 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.03

(Structure weight per square

foot of hull surface: 85 lbs)

Relative longitudinal hull strength: 1.07

(for 14.3 ft average freeboard;

freeboard adjustment +0.6 ft)

Relative composite hull strength: 1.03

Kuma, laid down 1916

Length, 600 ft x Beam, 60.0 ft x Depth, 15.0 ft

7406 tons normal displacement (6445 tons standard)

Main battery: 12 x 5.0-inch

Secondary battery: 10 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 945 lbs

4 TT, 21.0"

Main belt, 2.0 inches; bow and stern, 1.0 inches

Upper belt, 2.0 inches

Armor deck, average 1.5 inches

C.T., 2.0 inches

Battery armor:

Main, 1.0" shields / secondary, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 44169 shp = 28.50 knots

Approximate cruising radius, 11000 nm / 12 kts

Typical complement: 399-519

Estimated cost, $3.582 million (£895,000)

Remarks:

Oil firing.

Relative extent of belt armor, 87 percent of 'typical' coverage.

Good seaboat; rides out heavy weather easily.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 118 tons = 2 pct

Armor, total ..................... 1227 tons = 17 pct

Belt 544 tons = 7 pct

Deck 611 tons = 8 pct

C.T. 16 tons = 0 pct

Armament 56 tons = 1 pct

Machinery ........................ 1646 tons = 22 pct

Hull and fittings; equipment ..... 3227 tons = 44 pct

Fuel, ammunition, stores ......... 1188 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

7406 tons = 100 pct

Estimated metacentric height, 4.3 ft

Displacement summary:

Light ship: 6218 tons

Standard displacement: 6445 tons

Normal service: 7406 tons

Full load: 8145 tons

Loading submergence 629 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.42

Shellfire needed to sink: 12449 lbs = 199.2 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.8

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 63 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.09

Relative quality as a seaboat: 1.26

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 9.41

'Natural speed' for length = 24.5 knots

Power going to wave formation

at top speed: 48 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 85 percent

Relative accommodation and working space: 160 percent

Displacement factor: 136 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.13

(Structure weight per square

foot of hull surface: 97 lbs)

Relative longitudinal hull strength: 0.97

(for 16.5 ft average freeboard;

freeboard adjustment +2.2 ft)

Relative composite hull strength: 1.01

Nagara, laid down 1917

Length, 640 ft x Beam, 60.0 ft x Depth, 15.0 ft

7899 tons normal displacement (6840 tons standard)

Main battery: 12 x 5.0-inch

Secondary battery: 10 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 945 lbs

4 TT, 21.0"

Main belt, 2.0 inches; bow and stern, 1.0 inches

Upper belt, 1.0 inches

Armor deck, average 1.5 inches

C.T., 2.0 inches

Battery armor:

Main, 1.0" shields / secondary, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 39167 shp = 27.50 knots

Approximate cruising radius, 12000 nm / 12 kts

Typical complement: 419-545

Estimated cost, $3.864 million (£966,000)

Remarks:

Oil firing.

Relative extent of belt armor, 75 percent of 'typical' coverage.

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 118 tons = 1 pct

Armor, total ..................... 1120 tons = 14 pct

Belt 396 tons = 5 pct

Deck 652 tons = 8 pct

C.T. 17 tons = 0 pct

Armament 56 tons = 1 pct

Machinery ........................ 1436 tons = 18 pct

Hull and fittings; equipment ..... 3929 tons = 50 pct

Fuel, ammunition, stores ......... 1297 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

7899 tons = 100 pct

Estimated metacentric height, 4.1 ft

Displacement summary:

Light ship: 6603 tons

Standard displacement: 6840 tons

Normal service: 7899 tons

Full load: 8716 tons

Loading submergence 671 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.39

Shellfire needed to sink: 15532 lbs = 248.5 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 64 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.09

Relative quality as a seaboat: 1.28

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 9.83

'Natural speed' for length = 25.3 knots

Power going to wave formation

at top speed: 43 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 71 percent

Relative accommodation and working space: 162 percent

Displacement factor: 160 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.32

(Structure weight per square

foot of hull surface: 111 lbs)

Relative longitudinal hull strength: 0.97

(for 16.3 ft average freeboard;

freeboard adjustment +1.9 ft)

Relative composite hull strength: 1.05

(used 1927 as base)

Naka, laid down 1927

Length, 600 ft x Beam, 60.0 ft x Depth, 17.0 ft

8743 tons normal displacement (7375 tons standard)

Main battery: 8 x 5.0-inch (4 x 2; 2 superfiring)

Secondary battery: 12 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 722 lbs

4 TT, 21.0"

Main belt, 3.0 inches; ends unarmored

Upper belt, 1.0 inches

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 3.0" / secondary, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 72848 shp = 31.50 knots

Approximate cruising radius, 11000 nm / 15 kts

Typical complement: 452-588

Estimated cost, $9.420 million (£2.355 million)

Remarks:

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 90 tons = 1 pct

Armor, total ..................... 1238 tons = 14 pct

Belt 574 tons = 7 pct

Deck 419 tons = 5 pct

C.T. 18 tons = 0 pct

Armament 228 tons = 3 pct

Machinery ........................ 2299 tons = 26 pct

Hull and fittings; equipment ..... 3512 tons = 40 pct

Fuel, ammunition, stores ......... 1603 tons = 18 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

8743 tons = 100 pct

Estimated metacentric height, 4.1 ft

Displacement summary:

Light ship: 7140 tons

Standard displacement: 7375 tons

Normal service: 8743 tons

Full load: 9802 tons

Loading submergence 646 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.38

Shellfire needed to sink: 12361 lbs = 197.8 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.7

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 52 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.13

Relative quality as a seaboat: 1.04

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.91

'Natural speed' for length = 24.5 knots

Power going to wave formation

at top speed: 54 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 94 percent

Relative accommodation and working space: 150 percent

Displacement factor: 133 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.10

(Structure weight per square

foot of hull surface: 100 lbs)

Relative longitudinal hull strength: 1.01

(for 17.0 ft average freeboard;

freeboard adjustment +2.3 ft)

Relative composite hull strength: 1.03

(used 1928 as base)

Agano, laid down 1928

Length, 605 ft x Beam, 60.0 ft x Depth, 17.1 ft

8868 tons normal displacement (7283 tons standard)

Main battery: 8 x 5.0-inch (4 x 2; 2 superfiring)

Secondary battery: 10 x 3.0-inch

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 695 lbs

4 TT, 21.0"

Main belt, 3.0 inches; ends unarmored

Upper belt, 1.0 inches

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 3.0" / secondary, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 68636 shp = 31.00 knots

Approximate cruising radius, 12700 nm / 15 kts

Typical complement: 457-594

Estimated cost, $9.451 million (£2.363 million)

Remarks:

Relative extent of belt armor, 90 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 87 tons = 1 pct

Armor, total ..................... 1181 tons = 13 pct

Belt 520 tons = 6 pct

Deck 422 tons = 5 pct

C.T. 18 tons = 0 pct

Armament 220 tons = 2 pct

Machinery ........................ 2137 tons = 24 pct

Hull and fittings; equipment ..... 3644 tons = 41 pct

Fuel, ammunition, stores ......... 1819 tons = 21 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

8868 tons = 100 pct

Estimated metacentric height, 4.2 ft

Displacement summary:

Light ship: 7048 tons

Standard displacement: 7283 tons

Normal service: 8868 tons

Full load: 10099 tons

Loading submergence 652 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.41

Shellfire needed to sink: 13267 lbs = 212.3 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.8

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 52 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.11

Relative quality as a seaboat: 1.03

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.94

'Natural speed' for length = 24.6 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 86 percent

Relative accommodation and working space: 141 percent

Displacement factor: 144 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.17

(Structure weight per square

foot of hull surface: 105 lbs)

Relative longitudinal hull strength: 0.97

(for 16.0 ft average freeboard;

freeboard adjustment +1.2 ft)

Relative composite hull strength: 1.02

Walter

Edited by: Rooijen10 at: 4/18/03 1:55:15 pm

Rooijen10

Spammer wanna be

Posts: 72

(4/18/03 10:28:34 am)

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Coast Defense Ships:

Coast Defense Ship

Atsusa, laid down 1922

Length, 400 ft x Beam, 55.0 ft x Depth, 12.0 ft

4149 tons normal displacement (3838 tons standard)

Main battery: 4 x 9.0-inch (2 x 2)

AA battery: 8 x 2.0-inch

Light battery: 20 x 1.0-inch

Weight of broadside: 1500 lbs

Main belt, 4.0 inches; bow and stern, 2.0 inches

Upper belt, 2.0 inches

Armor deck, average 1.0 inches

C.T., 4.0 inches

Battery armor:

Main, 4.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 9620 shp = 20.00 knots

Approximate cruising radius, 5900 nm / 12 kts

Typical complement: 258-336

Estimated cost, $3.603 million (£901,000)

Remarks:

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 188 tons = 5 pct

Armor, total ..................... 1172 tons = 28 pct

Belt 662 tons = 16 pct

Deck 273 tons = 7 pct

C.T. 22 tons = 1 pct

Armament 215 tons = 5 pct

Machinery ........................ 326 tons = 8 pct

Hull and fittings; equipment ..... 1924 tons = 46 pct

Fuel, ammunition, stores ......... 519 tons = 13 pct

Miscellaneous weights ............ 20 tons = 0 pct

-----

4149 tons = 100 pct

Estimated metacentric height, 3.1 ft

Displacement summary:

Light ship: 3630 tons

Standard displacement: 3838 tons

Normal service: 4149 tons

Full load: 4380 tons

Loading submergence 421 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.26

Shellfire needed to sink: 8651 lbs = 23.7 x 9.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.1

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 62 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.39

Relative quality as a seaboat: 1.25

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.39

Hull speed coefficient 'M' = 7.61

'Natural speed' for length = 20.0 knots

Power going to wave formation

at top speed: 45 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 62 percent

Relative accommodation and working space: 138 percent

Displacement factor: 123 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.99

(Structure weight per square

foot of hull surface: 95 lbs)

Relative longitudinal hull strength: 1.27

(for 12.7 ft average freeboard)

Relative composite hull strength: 1.01

Monitor

Atatake, laid down 1924

Length, 430 ft x Beam, 60.0 ft x Depth, 20.0 ft

8109 tons normal displacement (7299 tons standard)

Main battery: 4 x 12.0-inch (2 x 2)

Secondary battery: 4 x 5.0-inch (4 x 1)

AA battery: 12 x 2.0-inch

Light battery: 24 x 1.0-inch

Weight of broadside: 3766 lbs

Main belt, 7.0 inches; bow and stern, 2.0 inches

Upper belt, 3.0 inches

Armor deck, average 1.0 inches

C.T., 8.0 inches

Battery armor:

Main, 7.0" / secondary, 4.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 20042 shp = 22.00 knots

Approximate cruising radius, 11000 nm / 12 kts

Typical complement: 427-555

Estimated cost, $8.984 million (£2.246 million)

Remarks:

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 471 tons = 6 pct

Armor, total ..................... 2211 tons = 27 pct

Belt 1163 tons = 14 pct

Deck 320 tons = 4 pct

C.T. 70 tons = 1 pct

Armament 658 tons = 8 pct

Machinery ........................ 660 tons = 8 pct

Hull and fittings; equipment ..... 3481 tons = 43 pct

Fuel, ammunition, stores ......... 1286 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

8109 tons = 100 pct

Estimated metacentric height, 2.7 ft

Displacement summary:

Light ship: 6823 tons

Standard displacement: 7299 tons

Normal service: 8109 tons

Full load: 8724 tons

Loading submergence 494 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.09

Shellfire needed to sink: 10915 lbs = 12.6 x 12.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.0

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 57 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.74

Relative quality as a seaboat: 1.13

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.39

Hull speed coefficient 'M' = 6.55

'Natural speed' for length = 20.7 knots

Power going to wave formation

at top speed: 51 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 72 percent

Relative accommodation and working space: 108 percent

Displacement factor: 110 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.02

(Structure weight per square

foot of hull surface: 134 lbs)

Relative longitudinal hull strength: 1.84

(for 14.0 ft average freeboard;

freeboard adjustment -0.5 ft)

Relative composite hull strength: 1.08

Walter

Edited by: Rooijen10 at: 4/18/03 1:57:04 pm

Rooijen10

Spammer wanna be

Posts: 73

(4/18/03 10:53:09 am)

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Sloops:

Tsubame, laid down 1924

Length, 300 ft x Beam, 38.0 ft x Depth, 9.0 ft

1466 tons normal displacement (1306 tons standard)

Main battery: 4 x 5.0-inch (4 x 1)

AA battery: 6 x 2.0-inch

Light battery: 12 x 1.0-inch

Weight of broadside: 280 lbs

Main belt, 2.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 5364 shp = 20.00 knots

Approximate cruising radius, 6000 nm / 12 kts

Typical complement: 118-154

Estimated cost, $1.212 million (£303,000)

Remarks:

Relative extent of belt armor, 65 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 35 tons = 2 pct

Armor, total ..................... 278 tons = 19 pct

Belt 79 tons = 5 pct

Deck 133 tons = 9 pct

C.T. 6 tons = 0 pct

Armament 61 tons = 4 pct

Machinery ........................ 177 tons = 12 pct

Hull and fittings; equipment ..... 764 tons = 52 pct

Fuel, ammunition, stores ......... 213 tons = 14 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

1466 tons = 100 pct

Estimated metacentric height, 1.8 ft

Displacement summary:

Light ship: 1253 tons

Standard displacement: 1306 tons

Normal service: 1466 tons

Full load: 1588 tons

Loading submergence 205 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.28

Shellfire needed to sink: 3391 lbs = 54.3 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 57 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.24

Relative quality as a seaboat: 1.13

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.36

Hull speed coefficient 'M' = 8.07

'Natural speed' for length = 17.3 knots

Power going to wave formation

at top speed: 50 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 59 percent

Relative accommodation and working space: 115 percent

Displacement factor: 158 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.26

(Structure weight per square

foot of hull surface: 73 lbs)

Relative longitudinal hull strength: 1.65

(for 10.0 ft average freeboard;

freeboard adjustment -0.3 ft)

Relative composite hull strength: 1.29

Suzume, laid down 1924

Length, 350 ft x Beam, 36.0 ft x Depth, 10.0 ft

1728 tons normal displacement (1493 tons standard)

Main battery: 4 x 5.0-inch (4 x 1)

AA battery: 4 x 2.0-inch

Light battery: 16 x 1.0-inch

Weight of broadside: 274 lbs

Main belt, 2.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 7876 shp = 22.00 knots

Approximate cruising radius, 8000 nm / 12 kts

Typical complement: 134-174

Estimated cost, $1.426 million (£356,000)

Remarks:

Relative extent of belt armor, 70 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 34 tons = 2 pct

Armor, total ..................... 305 tons = 18 pct

Belt 94 tons = 5 pct

Deck 143 tons = 8 pct

C.T. 6 tons = 0 pct

Armament 62 tons = 4 pct

Machinery ........................ 259 tons = 15 pct

Hull and fittings; equipment ..... 837 tons = 48 pct

Fuel, ammunition, stores ......... 292 tons = 17 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

1728 tons = 100 pct

Estimated metacentric height, 1.7 ft

Displacement summary:

Light ship: 1436 tons

Standard displacement: 1493 tons

Normal service: 1728 tons

Full load: 1909 tons

Loading submergence 220 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.28

Shellfire needed to sink: 3419 lbs = 54.7 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 59 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.26

Relative quality as a seaboat: 1.17

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.91

'Natural speed' for length = 18.7 knots

Power going to wave formation

at top speed: 48 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 65 percent

Relative accommodation and working space: 110 percent

Displacement factor: 155 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.24

(Structure weight per square

foot of hull surface: 70 lbs)

Relative longitudinal hull strength: 1.25

(for 10.0 ft average freeboard;

freeboard adjustment -0.7 ft)

Relative composite hull strength: 1.25

Aosagi, laid down 1924

Length, 240 ft x Beam, 35.0 ft x Depth, 8.0 ft

960 tons normal displacement (834 tons standard)

Main battery: 4 x 4.0-inch (4 x 1)

AA battery: 4 x 2.0-inch

Light battery: 10 x 1.0-inch

Weight of broadside: 149 lbs

Main belt, 2.0 inches; ends unarmored

Armor deck, average 1.0 inches

C.T., 2.0 inches

Battery armor:

Main, 2.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 3732 shp = 19.00 knots

Approximate cruising radius, 6000 nm / 12 kts

Typical complement: 86-112

Estimated cost, $753,000 (£188,000)

Remarks:

Relative extent of belt armor, 60 percent of 'typical' coverage.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 19 tons = 2 pct

Armor, total ..................... 204 tons = 21 pct

Belt 57 tons = 6 pct

Deck 98 tons = 10 pct

C.T. 4 tons = 0 pct

Armament 46 tons = 5 pct

Machinery ........................ 123 tons = 13 pct

Hull and fittings; equipment ..... 456 tons = 48 pct

Fuel, ammunition, stores ......... 158 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

960 tons = 100 pct

Estimated metacentric height, 1.7 ft

Displacement summary:

Light ship: 802 tons

Standard displacement: 834 tons

Normal service: 960 tons

Full load: 1057 tons

Loading submergence 151 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.30

Shellfire needed to sink: 2368 lbs = 74.0 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 52 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.17

Relative quality as a seaboat: 1.05

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.38

Hull speed coefficient 'M' = 7.43

'Natural speed' for length = 15.5 knots

Power going to wave formation

at top speed: 55 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 58 percent

Relative accommodation and working space: 111 percent

Displacement factor: 157 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.13

(Structure weight per square

foot of hull surface: 59 lbs)

Relative longitudinal hull strength: 1.99

(for 9.5 ft average freeboard)

Relative composite hull strength: 1.20

Walter

Edited by: Rooijen10 at: 4/18/03 1:58:59 pm

King of Riva

Spammer wanna be

Posts: 47

(4/18/03 11:16:15 am)

--------------------------------------------------------------------------------

Nice posts but there is something I have to comment:

Your ships seem to carry far too many light AA guns. Beg your pardon, but 20 2" guns and 40 1" guns on a 1924er design?

Even late in WW2 many, many units did not carry that many light guns. Only a few CVs, BBs, BCs and maybe some CAs did so. And, set aside the fact for a moment that in the 20s there was no reason and no understanding for such an armament, you will not be able to place all those guns on a hull smaller than a large cruisers due to topweight restrictions and more than that: deckspace!

I would really like to see a linedrawing of a 1300ts sloop carrying not only her 4 main guns but also 60 (!!!) small AA guns. Maybe she can carry them but they will have no fire arcs, there will be no space left for the crews, not enough spacing between the guns to allow them to train etc. And there will be no room left for superstructure, funnel, mast(s) etc. :)

I know springstyle allows so many guns. The reason is most likely, that ss calculations work with weight instead of deckspace but this doesn´t mean it is realistic.

I´m sure you can do better than that. And there are not only those "heavy armned" sloops, 120 light AA guns on Fuso? 150 on Kii? Did even IOWA ever carry that many AA guns? Hey, good morning! :) This is 1920 after all!!! ;)

Ciao,

HoOmAn

PS: The most funny thing is Hosho with its 90 guns. Why? Well, that 8000ts carrier surely needs all its deckspace to start and land planes thereon so there is even less left for AA guns.....

Rooijen10

Spammer wanna be

Posts: 74

(4/18/03 11:31:42 am)

--------------------------------------------------------------------------------

:)

Well this is how the designs are at the moment. Changes will occur. I too believe I went a bit crazy with the number of AAs. When they are readjusted, I'll edit the posts and change the data like I did with those twins.

And remember. It'll be quite hazardous to land on the Hosho with all those AA guns in the way. ;)

Walter

PS: There are two things that surprise me: 1) that you made no remark on the two quads on the Jakumo; 2) that you made no remark about the triple mains and triple secondaries on the Zuiho (I doubt that is realistic in 1920); 3) that you didn't make this remark when I posted the partial data in the Meeting Place forum. That data has been there for a while now.

Edited by: Rooijen10 at: 4/18/03 2:02:04 pm

Rooijen10

Spammer wanna be

Posts: 75

(4/18/03 2:12:07 pm)

**Japan's Destroyers**

--------------------------------------------------------------------------------

:D

Made some minor adjustments to the other data. A few less AAA on the ships.

King, I'm not sure, but what about the new Oklahoma style layout of the Kii's main guns ? (3-2-2-3)

Anyhow...

Here is the current springstyle data for the Japanese Destroyers:

1st class destroyers

**Mutsuki class**

Mutsuki, laid down 1922

Length, 480 ft x Beam, 30.0 ft x Depth, 12.0 ft

2222 tons normal displacement (1999 tons standard)

Main battery: 6 x 5.0-inch (3 x 2; 1 superfiring)

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

60 Depth Charges (20 tons misc. load)

Weight of broadside: 408 lbs

12 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 42634 shp = 34.00 knots

Approximate cruising radius, 3800 nm / 15 kts

Typical complement: 162-210

Estimated cost, $2.950 million (£738,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 51 tons = 2 pct

Armor, total ..................... 54 tons = 2 pct

Armament 54 tons = 2 pct

Machinery ........................ 1145 tons = 52 pct

Hull and fittings; equipment ..... 650 tons = 29 pct

Fuel, ammunition, stores ......... 301 tons = 14 pct

Miscellaneous weights ............ 20 tons = 1 pct

-----

2222 tons = 100 pct

Estimated metacentric height, 1.2 ft

Displacement summary:

Light ship: 1921 tons

Standard displacement: 1999 tons

Normal service: 2222 tons

Full load: 2391 tons

Loading submergence 241 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.23

Shellfire needed to sink: 502 lbs = 8.0 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 59 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.85

Relative quality as a seaboat: 1.17

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.27

Hull speed coefficient 'M' = 11.24

'Natural speed' for length = 21.9 knots

Power going to wave formation

at top speed: 55 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 185 percent

Relative accommodation and working space: 56 percent

Displacement factor: 66 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.58

(Structure weight per square

foot of hull surface: 39 lbs)

Relative longitudinal hull strength: 0.57

(for 13.2 ft average freeboard;

freeboard adjustment +2.0 ft)

Relative composite hull strength: 0.57

2nd class destroyers

**Minekaze class**

Minekaze, laid down 1914

Length, 380 ft x Beam, 30.0 ft x Depth, 12.5 ft

1832 tons normal displacement (1598 tons standard)

Main battery: 4 x 4.0-inch

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 161 lbs

9 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 39567 shp = 33.20 knots

Approximate cruising radius, 5900 nm / 12 kts

Typical complement: 140-182

Estimated cost, $1.118 million (£280,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Oil firing.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 20 tons = 1 pct

Armor, total ..................... 17 tons = 1 pct

Armament 17 tons = 1 pct

Machinery ........................ 1062 tons = 58 pct

Hull and fittings; equipment ..... 434 tons = 24 pct

Fuel, ammunition, stores ......... 285 tons = 16 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

1832 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 1547 tons

Standard displacement: 1598 tons

Normal service: 1832 tons

Full load: 2013 tons

Loading submergence 191 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.41

Shellfire needed to sink: 379 lbs = 11.8 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 55 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.15

Relative quality as a seaboat: 1.09

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.29

Hull speed coefficient 'M' = 9.49

'Natural speed' for length = 19.5 knots

Power going to wave formation

at top speed: 63 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 196 percent

Relative accommodation and working space: 56 percent

Displacement factor: 57 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.53

(Structure weight per square

foot of hull surface: 32 lbs)

Relative longitudinal hull strength: 0.89

(for 13.5 ft average freeboard;

freeboard adjustment +2.7 ft)

Relative composite hull strength: 0.56

**Kamikaze class**

Kamikaze, laid down 1917

Length, 380 ft x Beam, 30.0 ft x Depth, 12.2 ft

1788 tons normal displacement (1596 tons standard)

Main battery: 4 x 4.0-inch

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 161 lbs

9 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 43067 shp = 34.00 knots

Approximate cruising radius, 5500 nm / 12 kts

Typical complement: 137-179

Estimated cost, $1.590 million (£398,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Oil firing.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 20 tons = 1 pct

Armor, total ..................... 17 tons = 1 pct

Armament 17 tons = 1 pct

Machinery ........................ 1055 tons = 59 pct

Hull and fittings; equipment ..... 441 tons = 25 pct

Fuel, ammunition, stores ......... 241 tons = 13 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

1788 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 1547 tons

Standard displacement: 1596 tons

Normal service: 1788 tons

Full load: 1934 tons

Loading submergence 191 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.40

Shellfire needed to sink: 364 lbs = 11.4 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 53 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.16

Relative quality as a seaboat: 1.06

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.29

Hull speed coefficient 'M' = 9.57

'Natural speed' for length = 19.5 knots

Power going to wave formation

at top speed: 65 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 200 percent

Relative accommodation and working space: 58 percent

Displacement factor: 53 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.52

(Structure weight per square

foot of hull surface: 33 lbs)

Relative longitudinal hull strength: 0.92

(for 13.8 ft average freeboard;

freeboard adjustment +3.1 ft)

Relative composite hull strength: 0.55

**Fubuki class**

Fubuki, laid down 1922

Length, 380 ft x Beam, 30.0 ft x Depth, 12.0 ft

1759 tons normal displacement (1567 tons standard)

Main battery: 4 x 4.0-inch (4 x 1)

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 161 lbs

9 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 42611 shp = 34.00 knots

Approximate cruising radius, 3800 nm / 15 kts

Typical complement: 136-177

Estimated cost, $2.292 million (£573,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 20 tons = 1 pct

Armor, total ..................... 35 tons = 2 pct

Armament 35 tons = 2 pct

Machinery ........................ 1000 tons = 57 pct

Hull and fittings; equipment ..... 449 tons = 26 pct

Fuel, ammunition, stores ......... 240 tons = 14 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

1759 tons = 100 pct

Estimated metacentric height, 1.4 ft

Displacement summary:

Light ship: 1519 tons

Standard displacement: 1567 tons

Normal service: 1759 tons

Full load: 1905 tons

Loading submergence 191 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.35

Shellfire needed to sink: 382 lbs = 12.0 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 53 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.34

Relative quality as a seaboat: 1.06

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.29

Hull speed coefficient 'M' = 9.62

'Natural speed' for length = 19.5 knots

Power going to wave formation

at top speed: 65 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 193 percent

Relative accommodation and working space: 60 percent

Displacement factor: 57 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.53

(Structure weight per square

foot of hull surface: 33 lbs)

Relative longitudinal hull strength: 0.91

(for 14.0 ft average freeboard;

freeboard adjustment +3.3 ft)

Relative composite hull strength: 0.55

**Akatsuki class**

Akatsuki, laid down 1924

Length, 388 ft x Beam, 30.0 ft x Depth, 12.0 ft

1796 tons normal displacement (1596 tons standard)

Main battery: 4 x 4.0-inch (4 x 1)

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 161 lbs

9 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 42551 shp = 34.00 knots

Approximate cruising radius, 4000 nm / 15 kts

Typical complement: 138-179

Estimated cost, $2.618 million (£655,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 20 tons = 1 pct

Armor, total ..................... 35 tons = 2 pct

Armament 35 tons = 2 pct

Machinery ........................ 1005 tons = 56 pct

Hull and fittings; equipment ..... 472 tons = 26 pct

Fuel, ammunition, stores ......... 250 tons = 14 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

1796 tons = 100 pct

Estimated metacentric height, 1.4 ft

Displacement summary:

Light ship: 1546 tons

Standard displacement: 1596 tons

Normal service: 1796 tons

Full load: 1949 tons

Loading submergence 195 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.35

Shellfire needed to sink: 415 lbs = 13.0 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 55 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.34

Relative quality as a seaboat: 1.09

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.29

Hull speed coefficient 'M' = 9.76

'Natural speed' for length = 19.7 knots

Power going to wave formation

at top speed: 64 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 190 percent

Relative accommodation and working space: 62 percent

Displacement factor: 60 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.54

(Structure weight per square

foot of hull surface: 34 lbs)

Relative longitudinal hull strength: 0.90

(for 14.0 ft average freeboard;

freeboard adjustment +3.3 ft)

Relative composite hull strength: 0.57

3rd class destroyer

**Ki Ichi class**

Ki Ichi, laid down 1912

Length, 350 ft x Beam, 25.0 ft x Depth, 6.0 ft

675 tons normal displacement (589 tons standard)

Main battery: 2 x 4.0-inch

QF battery: 4 x 2.0-inch

Light battery: 8 x 1.0-inch

30 Depth Charges (10 tons misc. load)

Weight of broadside: 84 lbs

2 TT, 21.0"

Hull unarmored

Maximum speed for 15336 shp = 30.50 knots

Approximate cruising radius, 3500 nm / 12 kts

Typical complement: 66-86

Estimated cost, $307,000 (£77,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Oil firing.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Roomy upper decks; superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 11 tons = 2 pct

Machinery ........................ 343 tons = 51 pct

Hull and fittings; equipment ..... 205 tons = 30 pct

Fuel, ammunition, stores ......... 106 tons = 16 pct

Miscellaneous weights ............ 10 tons = 1 pct

-----

675 tons = 100 pct

Estimated metacentric height, 1.3 ft

Displacement summary:

Light ship: 569 tons

Standard displacement: 589 tons

Normal service: 675 tons

Full load: 741 tons

Loading submergence 146 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.54

Shellfire needed to sink: 219 lbs = 6.8 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 50 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.13

Relative quality as a seaboat: 1.01

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.28

Hull speed coefficient 'M' = 12.19

'Natural speed' for length = 18.7 knots

Power going to wave formation

at top speed: 58 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 178 percent

Relative accommodation and working space: 127 percent

Displacement factor: 51 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.51

(Structure weight per square

foot of hull surface: 23 lbs)

Relative longitudinal hull strength: 0.53

(for 10.2 ft average freeboard;

freeboard adjustment +1.4 ft)

Relative composite hull strength: 0.51

Walter

Edited by: Rooijen10 at: 4/18/03 2:24:04 pm

Rooijen10

Spammer wanna be

Posts: 76

(4/18/03 2:37:24 pm)

**Japan's Miscellaneous ships**

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Smaller ships:

**Go Ichi class gunboat**

Go Ichi, laid down 1916

Length, 220 ft x Beam, 32.0 ft x Depth, 7.5 ft

754 tons normal displacement (596 tons standard)

Main battery: 4 x 5.0-inch

AA battery: 4 x 2.0-inch

Light battery: 12 x 1.0-inch

Weight of broadside: 272 lbs

Hull unarmored

Maximum speed for 2986 shp = 18.50 knots

Approximate cruising radius, 7000 nm / 12 kts

Typical complement: 72-94

Estimated cost, $417,000 (£104,000)

Remarks:

Oil firing.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 34 tons = 5 pct

Machinery ........................ 111 tons = 15 pct

Hull and fittings; equipment ..... 413 tons = 55 pct

Fuel, ammunition, stores ......... 196 tons = 26 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

754 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 558 tons

Standard displacement: 596 tons

Normal service: 754 tons

Full load: 878 tons

Loading submergence 126 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.33

Shellfire needed to sink: 1341 lbs = 21.5 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.7

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 53 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.21

Relative quality as a seaboat: 1.06

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.38

Hull speed coefficient 'M' = 7.38

'Natural speed' for length = 14.8 knots

Power going to wave formation

at top speed: 56 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 83 percent

Relative accommodation and working space: 109 percent

Displacement factor: 153 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.15

(Structure weight per square

foot of hull surface: 62 lbs)

Relative longitudinal hull strength: 2.56

(for 9.3 ft average freeboard;

freeboard adjustment +0.3 ft)

Relative composite hull strength: 1.24

**Ri Ichi class minelayer**

Ri Ichi, laid down 1916

Length, 220 ft x Beam, 28.0 ft x Depth, 7.0 ft

678 tons normal displacement (558 tons standard)

Main battery: 6 x 4.0-inch

AA battery: 4 x 2.0-inch

Light battery: 12 x 1.0-inch

37 mines (25 tons misc. load)

Weight of broadside: 214 lbs

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 2811 shp = 18.50 knots

Approximate cruising radius, 5600 nm / 12 kts

Typical complement: 66-86

Estimated cost, $364,000 (£91,000)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 27 tons = 4 pct

Armor, total ..................... 13 tons = 2 pct

Armament 13 tons = 2 pct

Machinery ........................ 105 tons = 15 pct

Hull and fittings; equipment ..... 357 tons = 53 pct

Fuel, ammunition, stores ......... 151 tons = 22 pct

Miscellaneous weights ............ 25 tons = 4 pct

-----

678 tons = 100 pct

Estimated metacentric height, 1.0 ft

Displacement summary:

Light ship: 527 tons

Standard displacement: 558 tons

Normal service: 678 tons

Full load: 770 tons

Loading submergence 118 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.21

Shellfire needed to sink: 1130 lbs = 35.3 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.7

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 53 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.28

Relative quality as a seaboat: 1.05

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.38

Hull speed coefficient 'M' = 7.65

'Natural speed' for length = 14.8 knots

Power going to wave formation

at top speed: 55 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 85 percent

Relative accommodation and working space: 108 percent

Displacement factor: 146 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.16

(Structure weight per square

foot of hull surface: 57 lbs)

Relative longitudinal hull strength: 2.22

(for 9.1 ft average freeboard;

freeboard adjustment +0.3 ft)

Relative composite hull strength: 1.24

**Mu Ichi class minesweeper**

Mu Ichi, laid down 1916

Length, 220 ft x Beam, 25.0 ft x Depth, 7.0 ft

605 tons normal displacement (506 tons standard)

Main battery: 6 x 4.0-inch

AA battery: 4 x 2.0-inch

Light battery: 12 x 1.0-inch

Weight of broadside: 214 lbs

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 2569 shp = 18.50 knots

Approximate cruising radius, 5000 nm / 12 kts

Typical complement: 61-79

Estimated cost, $344,000 (£86,000)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 27 tons = 4 pct

Armor, total ..................... 13 tons = 2 pct

Armament 13 tons = 2 pct

Machinery ........................ 96 tons = 16 pct

Hull and fittings; equipment ..... 320 tons = 53 pct

Fuel, ammunition, stores ......... 129 tons = 21 pct

Miscellaneous weights ............ 20 tons = 3 pct

-----

605 tons = 100 pct

Estimated metacentric height, 0.8 ft

Displacement summary:

Light ship: 476 tons

Standard displacement: 506 tons

Normal service: 605 tons

Full load: 682 tons

Loading submergence 105 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.16

Shellfire needed to sink: 904 lbs = 28.2 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.6

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 55 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.40

Relative quality as a seaboat: 1.09

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.36

Hull speed coefficient 'M' = 7.95

'Natural speed' for length = 14.8 knots

Power going to wave formation

at top speed: 54 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 89 percent

Relative accommodation and working space: 98 percent

Displacement factor: 137 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.18

(Structure weight per square

foot of hull surface: 55 lbs)

Relative longitudinal hull strength: 2.04

(for 8.5 ft average freeboard;

freeboard adjustment -0.1 ft)

Relative composite hull strength: 1.24

**Shi Ichi class light submarine chaser**

Shi Ichi, laid down 1916

Length, 210 ft x Beam, 20.0 ft x Depth, 5.0 ft

330 tons normal displacement (284 tons standard)

Main battery: 2 x 4.0-inch

AA battery: 4 x 2.0-inch

Light battery: 8 x 1.0-inch

30 Depth Charges (10 tons misc. load)

Weight of broadside: 84 lbs

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 1773 shp = 18.50 knots

Approximate cruising radius, 3300 nm / 12 kts

Typical complement: 39-50

Estimated cost, $180,000 (£45,000)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 11 tons = 3 pct

Armor, total ..................... 7 tons = 2 pct

Armament 7 tons = 2 pct

Machinery ........................ 66 tons = 20 pct

Hull and fittings; equipment ..... 177 tons = 54 pct

Fuel, ammunition, stores ......... 59 tons = 18 pct

Miscellaneous weights ............ 10 tons = 3 pct

-----

330 tons = 100 pct

Estimated metacentric height, 0.6 ft

Displacement summary:

Light ship: 271 tons

Standard displacement: 284 tons

Normal service: 330 tons

Full load: 365 tons

Loading submergence 80 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.17

Shellfire needed to sink: 528 lbs = 16.5 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 54 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.31

Relative quality as a seaboat: 1.08

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.34

Hull speed coefficient 'M' = 9.28

'Natural speed' for length = 14.5 knots

Power going to wave formation

at top speed: 52 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 93 percent

Relative accommodation and working space: 100 percent

Displacement factor: 140 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.15

(Structure weight per square

foot of hull surface: 40 lbs)

Relative longitudinal hull strength: 1.43

(for 7.2 ft average freeboard;

freeboard adjustment -0.5 ft)

Relative composite hull strength: 1.18

**Ao Ichi class heavy submarine chaser**

Ao Ichi, laid down 1914

Length, 370 ft x Beam, 35.0 ft x Depth, 12.0 ft

2220 tons normal displacement (1930 tons standard)

Main battery: 4 x 5.0-inch

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 283 lbs

Hull unarmored

Maximum speed for 6261 shp = 20.00 knots

Approximate cruising radius, 6500 nm / 12 kts

Typical complement: 162-210

Estimated cost, $655,000 (£164,000)

Remarks:

Oil firing.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 35 tons = 2 pct

Machinery ........................ 241 tons = 11 pct

Hull and fittings; equipment ..... 1572 tons = 71 pct

Fuel, ammunition, stores ......... 358 tons = 16 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

2220 tons = 100 pct

Estimated metacentric height, 1.6 ft

Displacement summary:

Light ship: 1862 tons

Standard displacement: 1930 tons

Normal service: 2220 tons

Full load: 2443 tons

Loading submergence 233 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.26

Shellfire needed to sink: 5019 lbs = 80.3 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.9

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 58 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.13

Relative quality as a seaboat: 1.16

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.67

'Natural speed' for length = 19.2 knots

Power going to wave formation

at top speed: 42 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 49 percent

Relative accommodation and working space: 91 percent

Displacement factor: 285 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 2.28

(Structure weight per square

foot of hull surface: 121 lbs)

Relative longitudinal hull strength: 2.01

(for 9.5 ft average freeboard;

freeboard adjustment -1.7 ft)

Relative composite hull strength: 2.07

**Fu Ichi class corvette**

Fu Ichi, laid down 1914

Length, 370 ft x Beam, 35.0 ft x Depth, 12.0 ft

2220 tons normal displacement (1930 tons standard)

Main battery: 4 x 5.0-inch

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

Weight of broadside: 283 lbs

Hull unarmored

Maximum speed for 6261 shp = 20.00 knots

Approximate cruising radius, 6500 nm / 12 kts

Typical complement: 162-210

Estimated cost, $655,000 (£164,000)

Remarks:

Oil firing.

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 35 tons = 2 pct

Machinery ........................ 241 tons = 11 pct

Hull and fittings; equipment ..... 1586 tons = 71 pct

Fuel, ammunition, stores ......... 358 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

2220 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 1862 tons

Standard displacement: 1930 tons

Normal service: 2220 tons

Full load: 2443 tons

Loading submergence 233 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.23

Shellfire needed to sink: 5177 lbs = 82.8 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.9

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 61 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.14

Relative quality as a seaboat: 1.21

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.67

'Natural speed' for length = 19.2 knots

Power going to wave formation

at top speed: 42 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 49 percent

Relative accommodation and working space: 96 percent

Displacement factor: 290 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 2.24

(Structure weight per square

foot of hull surface: 120 lbs)

Relative longitudinal hull strength: 2.12

(for 10.0 ft average freeboard;

freeboard adjustment -1.2 ft)

Relative composite hull strength: 2.15

Walter

17inc

Spammer wanna be

Posts: 5

(4/19/03 4:37:13 am)

**Re: Japan's Battleships**

--------------------------------------------------------------------------------

took one look! at your BBs you could have a hood on your hands Rooijen 10. your 11"and 14" Maine batter Armor would not stop a 15" shell going deep? in to cordite room and and blow your ships all it takes is one 15" round to find its mark and you can kiss all that money you spent good by. try going 15" to 17" on maine Batter Armor on the Guns.

Edited by: 17inc at: 4/19/03 4:38:45 am

King of Riva

Spammer wanna be

Posts: 48

(4/19/03 9:51:06 am)

**Re: Japan's Sloops**

--------------------------------------------------------------------------------

"Well this is how the designs are at the moment. Changes will occur. I too believe I went a bit crazy with the number of AAs."

Oh yes.... :)

"And remember. It'll be quite hazardous to land on the Hosho with all those AA guns in the way. ;)"

That´s for sure. *g* Hosho must look more like a cactus than an aircraft carrier!

"PS: There are two things that surprise me: 1) that you made no remark on the two quads on the Jakumo;"

Why should I? The idea of quads is not new nor is it unique. The french went for quads on their BBs quite early (Normandie-class 1913) for example. Other nations also played with that idea. Maybe it is not _that_ realistic but this is an alternate world after all. Two quads on a cruiser in 1914 (or at anytime) is somewhat odd but technically possible. And there is another thought: I don´t know how many of those ships you own. If it is maybe just a single ship, one can make quite a good story out of it. Some kind of experiment or something.

It would also be interesting to know more about that quad turret. If the guns are in single craddles, you may have problems to put them on a cruisers hull of 70ft. because the turret will eat up most of your beam. So there´s little if any room left besides it what should make it relatively valnurable to shell and torpedo damage. But again, that´s up to you and your story writing.

On the other hand, if the turret is small the guns will not be in single craddles. This might lead to muzzle interference or something....

It is an interesting idea, which some potential for a good story. So why should I comment on it? Let´s see what you make out of it...

"2) that you made no remark about the triple mains and triple secondaries on the Zuiho (I doubt that is realistic in 1920)"

Browsing through your carrier stats again, I can find no triples on Zuiho?! But even if so, Refit and Repair also had their seconaries in triples, right? So why bother?

"3) that you didn't make this remark when I posted the partial data in the Meeting Place forum. That data has been there for a while now."

*shrug shoulders*

Maybe I´ve missed it, maybe I´ve forgotten to comment. Don´t know. But what is interesting is that nobody else did. Most people don´t go through all this in detail, though, nor do they think about realism when reading it. At least that´s my guess. Otherwise there should have been many more comments and opinions written down. right?

Cheers,

HoOmAn

Rooijen10

Spammer wanna be

Posts: 77

(4/19/03 9:54:36 am)

**Well...**

--------------------------------------------------------------------------------

Armor-wise, they might not be the best. It might not have been the wisest of choises. The Fuso and Nagato class armor scheme is based on the data given at Warships1.com. Sure I could have gone for better armor. The Kii class is a bit smaller than what is given on Warships1.com, but armor is a bit better.

A few things though:

1) If I were to encounter a Hood, it'll be 1 BC vs. 2BBs (the Japanese BBs are grouped in pairs at the moment. See 'The Empire of Japan' thread in 'The Meeting Place Forum'. Will become 3-4 once the Kii ships are finished). That means 8 15" guns vs 24 14" guns (and later 8 15" guns vs 24 14" guns and 10-20 15" guns)

2) Actually it's worse than that. It'll be 1 BC vs 2BBs, 2-4ACs, 4-5 CLs and 22-25 DDs at 1/1/1921, and don't be fooled by the smaller craft. If you are actually foolish enough to take on my BBs, better have a support group with you.

3) My most fearsome weapon is not listed... because it is not a naval weapon. :-)

4) If you want to get at the cordite room through my turret, you'll have to have your shells come in at a pretty steep angle of fall and the 15"/42 (38.1 cm) Mark Is have a maximum elevation of about 20 degrees (at least that is according to the data given at Warships1.com). Go for a deckshot like Bismarck did rather than a turret aimed shot.

5) If you go for a historical type of Hood... You'll have to scap it since at 41,000 tons it'll be over the limit. :-)

Wait a sec... according to one of your posts on Warships1.com's discussion board (no longer there but I saved them and some other stuff), you have 6 QEs and will have an additional 4 Hoods... but Australia is only allowed to have 6 capital ships and a total of 200,000 tons of capital ship tonnage. Since the QEs were built about 1912-1913 and you can only replace 20 years after being laid down, it'll be 1932-1933 before you can think about replacing them (unless you'll ignore the treaty).

Might be wise to take a very good look at the Treaty.;)

Walter

Edited by: Rooijen10 at: 4/19/03 2:34:22 pm

Rooijen10

Spammer wanna be

Posts: 78

(4/19/03 10:05:16 am)

**Re: Japan's Sloops**

--------------------------------------------------------------------------------

"Hosho must look more like a cactus than an aircraft carrier!"

LOL

About the quad... I didn't have a better idea how to sim the 1904 Sharnhorst/Gneisenau 8.2 inch layout (two twin turrets and four in single casemates (??? not sure about that)) without listing the other half as secondaries. Maybe you have a better idea, or maybe something needs to be added.

The triples on the Zuiho have been adjusted together with the AAAs, but it is still unchanged in 'The Empire of Japan' thread in 'The Meeting Place' forum so you can see it there. I thought triple mains and secondaries on the carrier would not be realistic.

Walter

Pengolodh

Spammer wanna be

Posts: 3

(4/19/03 10:26:45 am)

**Re: Japan's Sloops**

--------------------------------------------------------------------------------

The Brits did have 4inch triples as secondaries on Refit, Repair, Outrageous, Spurious and Curious - the mountings had each barrel in an individual cradle, and was a very cumbersome piece to operate, and had an exceptionally large crew. The mountings quickly became wildly unpopular in the Navy, and the only reason they were on several classes of ships was because Fisher wanted them there, and all ships in the 2.5 classes had been laid down before any had entered service.

Best regards

Pengolodh

"Iraq will not be defeated. Iraq has now already achieved victory - apart from some technicalities."

- Mohsen Khalil, Iraqi Ambassador to the Arab League

17inc

Spammer wanna be

Posts: 7

(4/19/03 7:00:52 pm)

**My BBs will Have 30 elevation afthere rebuild**

--------------------------------------------------------------------------------

your rigth in one way but afthere the QEs come out from there rebuild mid to late 1930s they will have 30 elevation on the guns and the 3QEs with new 4.5" guns as they would look in the 1940s so yes in one cents your on 20 elevating the guns thats if they stay in there 1919 look . rooijen 10

Rooijen10

Spammer wanna be

Posts: 79

(4/20/03 4:23:14 am)

**Not necessarily...**

--------------------------------------------------------------------------------

From the data of Warships1.com, the guns of the Fuso (and Ise and Kongo) ships had an original maximum elevation of 25 degrees when constructed. In the 1920s they were changed to 33 degrees and during the 1930s modernisation to 43 degrees. The 14 inch guns on those of the Alternate World have an elevation of 30 degrees on the Fuso class and 35 degrees on the Nagato class.

You could go for a historical QE with 20 degree elevation, but they could have been created with a 25 or 30 degree elevation rather than the 20 degree in this Alternate World.

Walter

thesmilingassassin

Spammer wanna be

Posts: 26

(4/22/03 4:47:25 am)

**gun elevation**

--------------------------------------------------------------------------------

...the standard gun elevation in the alternate world would be between 20 and 30 degrees, at least in 1921.

The higher elevation of the japanese guns (historically)was if i recall correctly for the use of heavy caliber AA shells the Japanese were experimenting with. As to armor you don't nessasarily need 15" armor to defeat a 15" shell, angles and armor type play a big role.

Rooijen10

Spammer wanna be

Posts: 81

(4/22/03 12:28:02 pm)

**Re: gun elevation**

--------------------------------------------------------------------------------

Before posting the data for the 14" guns, I was wondering what elevation I should take. For some reason, I thought it would be better if I didn't go for the 45 degrees and went for 30 and 35 degrees.

Walter

Spammer wanna be

Posts: 75

(4/18/03 2:12:07 pm)

--------------------------------------------------------------------------------

:D

Made some minor adjustments to the other data. A few less AAA on the ships.

King, I'm not sure, but what about the new Oklahoma style layout of the Kii's main guns ? (3-2-2-3)

Anyhow...

Here is the current springstyle data for the Japanese Destroyers:

1st class destroyers

Mutsuki, laid down 1922

Length, 480 ft x Beam, 30.0 ft x Depth, 12.0 ft

2222 tons normal displacement (1999 tons standard)

Main battery: 6 x 5.0-inch (3 x 2; 1 superfiring)

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

60 Depth Charges (20 tons misc. load)

Weight of broadside: 408 lbs

12 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 42634 shp = 34.00 knots

Approximate cruising radius, 3800 nm / 15 kts

Typical complement: 162-210

Estimated cost, $2.950 million (£738,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 51 tons = 2 pct

Armor, total ..................... 54 tons = 2 pct

Armament 54 tons = 2 pct

Machinery ........................ 1145 tons = 52 pct

Hull and fittings; equipment ..... 650 tons = 29 pct

Fuel, ammunition, stores ......... 301 tons = 14 pct

Miscellaneous weights ............ 20 tons = 1 pct

-----

2222 tons = 100 pct

Estimated metacentric height, 1.2 ft

Displacement summary:

Light ship: 1921 tons

Standard displacement: 1999 tons

Normal service: 2222 tons

Full load: 2391 tons

Loading submergence 241 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.23

Shellfire needed to sink: 502 lbs = 8.0 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.3

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 59 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.85

Relative quality as a seaboat: 1.17

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.27

Hull speed coefficient 'M' = 11.24

'Natural speed' for length = 21.9 knots

Power going to wave formation

at top speed: 55 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 185 percent

Relative accommodation and working space: 56 percent

Displacement factor: 66 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.58

(Structure weight per square

foot of hull surface: 39 lbs)

Relative longitudinal hull strength: 0.57

(for 13.2 ft average freeboard;

freeboard adjustment +2.0 ft)

Relative composite hull strength: 0.57

2nd class destroyers

Minekaze, laid down 1914

Length, 380 ft x Beam, 30.0 ft x Depth, 12.5 ft

1832 tons normal displacement (1598 tons standard)

Main battery: 4 x 4.0-inch

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 161 lbs

9 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 39567 shp = 33.20 knots

Approximate cruising radius, 5900 nm / 12 kts

Typical complement: 140-182

Estimated cost, $1.118 million (£280,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Oil firing.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 20 tons = 1 pct

Armor, total ..................... 17 tons = 1 pct

Armament 17 tons = 1 pct

Machinery ........................ 1062 tons = 58 pct

Hull and fittings; equipment ..... 434 tons = 24 pct

Fuel, ammunition, stores ......... 285 tons = 16 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

1832 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 1547 tons

Standard displacement: 1598 tons

Normal service: 1832 tons

Full load: 2013 tons

Loading submergence 191 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.41

Shellfire needed to sink: 379 lbs = 11.8 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 55 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.15

Relative quality as a seaboat: 1.09

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.29

Hull speed coefficient 'M' = 9.49

'Natural speed' for length = 19.5 knots

Power going to wave formation

at top speed: 63 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 196 percent

Relative accommodation and working space: 56 percent

Displacement factor: 57 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.53

(Structure weight per square

foot of hull surface: 32 lbs)

Relative longitudinal hull strength: 0.89

(for 13.5 ft average freeboard;

freeboard adjustment +2.7 ft)

Relative composite hull strength: 0.56

Kamikaze, laid down 1917

Length, 380 ft x Beam, 30.0 ft x Depth, 12.2 ft

1788 tons normal displacement (1596 tons standard)

Main battery: 4 x 4.0-inch

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 161 lbs

9 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 43067 shp = 34.00 knots

Approximate cruising radius, 5500 nm / 12 kts

Typical complement: 137-179

Estimated cost, $1.590 million (£398,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Oil firing.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 20 tons = 1 pct

Armor, total ..................... 17 tons = 1 pct

Armament 17 tons = 1 pct

Machinery ........................ 1055 tons = 59 pct

Hull and fittings; equipment ..... 441 tons = 25 pct

Fuel, ammunition, stores ......... 241 tons = 13 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

1788 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 1547 tons

Standard displacement: 1596 tons

Normal service: 1788 tons

Full load: 1934 tons

Loading submergence 191 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.40

Shellfire needed to sink: 364 lbs = 11.4 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 53 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.16

Relative quality as a seaboat: 1.06

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.29

Hull speed coefficient 'M' = 9.57

'Natural speed' for length = 19.5 knots

Power going to wave formation

at top speed: 65 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 200 percent

Relative accommodation and working space: 58 percent

Displacement factor: 53 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.52

(Structure weight per square

foot of hull surface: 33 lbs)

Relative longitudinal hull strength: 0.92

(for 13.8 ft average freeboard;

freeboard adjustment +3.1 ft)

Relative composite hull strength: 0.55

Fubuki, laid down 1922

Length, 380 ft x Beam, 30.0 ft x Depth, 12.0 ft

1759 tons normal displacement (1567 tons standard)

Main battery: 4 x 4.0-inch (4 x 1)

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 161 lbs

9 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 42611 shp = 34.00 knots

Approximate cruising radius, 3800 nm / 15 kts

Typical complement: 136-177

Estimated cost, $2.292 million (£573,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 20 tons = 1 pct

Armor, total ..................... 35 tons = 2 pct

Armament 35 tons = 2 pct

Machinery ........................ 1000 tons = 57 pct

Hull and fittings; equipment ..... 449 tons = 26 pct

Fuel, ammunition, stores ......... 240 tons = 14 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

1759 tons = 100 pct

Estimated metacentric height, 1.4 ft

Displacement summary:

Light ship: 1519 tons

Standard displacement: 1567 tons

Normal service: 1759 tons

Full load: 1905 tons

Loading submergence 191 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.35

Shellfire needed to sink: 382 lbs = 12.0 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 53 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.34

Relative quality as a seaboat: 1.06

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.29

Hull speed coefficient 'M' = 9.62

'Natural speed' for length = 19.5 knots

Power going to wave formation

at top speed: 65 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 193 percent

Relative accommodation and working space: 60 percent

Displacement factor: 57 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.53

(Structure weight per square

foot of hull surface: 33 lbs)

Relative longitudinal hull strength: 0.91

(for 14.0 ft average freeboard;

freeboard adjustment +3.3 ft)

Relative composite hull strength: 0.55

Akatsuki, laid down 1924

Length, 388 ft x Beam, 30.0 ft x Depth, 12.0 ft

1796 tons normal displacement (1596 tons standard)

Main battery: 4 x 4.0-inch (4 x 1)

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 161 lbs

9 TT, 21.0"

Hull unarmored

Battery armor:

Main, 1.0"

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 42551 shp = 34.00 knots

Approximate cruising radius, 4000 nm / 15 kts

Typical complement: 138-179

Estimated cost, $2.618 million (£655,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Cramped ship; poor crew accommodation, limited working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 20 tons = 1 pct

Armor, total ..................... 35 tons = 2 pct

Armament 35 tons = 2 pct

Machinery ........................ 1005 tons = 56 pct

Hull and fittings; equipment ..... 472 tons = 26 pct

Fuel, ammunition, stores ......... 250 tons = 14 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

1796 tons = 100 pct

Estimated metacentric height, 1.4 ft

Displacement summary:

Light ship: 1546 tons

Standard displacement: 1596 tons

Normal service: 1796 tons

Full load: 1949 tons

Loading submergence 195 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.35

Shellfire needed to sink: 415 lbs = 13.0 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 55 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.34

Relative quality as a seaboat: 1.09

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.29

Hull speed coefficient 'M' = 9.76

'Natural speed' for length = 19.7 knots

Power going to wave formation

at top speed: 64 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 190 percent

Relative accommodation and working space: 62 percent

Displacement factor: 60 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.54

(Structure weight per square

foot of hull surface: 34 lbs)

Relative longitudinal hull strength: 0.90

(for 14.0 ft average freeboard;

freeboard adjustment +3.3 ft)

Relative composite hull strength: 0.57

3rd class destroyer

Ki Ichi, laid down 1912

Length, 350 ft x Beam, 25.0 ft x Depth, 6.0 ft

675 tons normal displacement (589 tons standard)

Main battery: 2 x 4.0-inch

QF battery: 4 x 2.0-inch

Light battery: 8 x 1.0-inch

30 Depth Charges (10 tons misc. load)

Weight of broadside: 84 lbs

2 TT, 21.0"

Hull unarmored

Maximum speed for 15336 shp = 30.50 knots

Approximate cruising radius, 3500 nm / 12 kts

Typical complement: 66-86

Estimated cost, $307,000 (£77,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea

conditions.

Oil firing.

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Roomy upper decks; superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 11 tons = 2 pct

Machinery ........................ 343 tons = 51 pct

Hull and fittings; equipment ..... 205 tons = 30 pct

Fuel, ammunition, stores ......... 106 tons = 16 pct

Miscellaneous weights ............ 10 tons = 1 pct

-----

675 tons = 100 pct

Estimated metacentric height, 1.3 ft

Displacement summary:

Light ship: 569 tons

Standard displacement: 589 tons

Normal service: 675 tons

Full load: 741 tons

Loading submergence 146 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.54

Shellfire needed to sink: 219 lbs = 6.8 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 50 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.13

Relative quality as a seaboat: 1.01

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.28

Hull speed coefficient 'M' = 12.19

'Natural speed' for length = 18.7 knots

Power going to wave formation

at top speed: 58 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 178 percent

Relative accommodation and working space: 127 percent

Displacement factor: 51 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.51

(Structure weight per square

foot of hull surface: 23 lbs)

Relative longitudinal hull strength: 0.53

(for 10.2 ft average freeboard;

freeboard adjustment +1.4 ft)

Relative composite hull strength: 0.51

Walter

Edited by: Rooijen10 at: 4/18/03 2:24:04 pm

Rooijen10

Spammer wanna be

Posts: 76

(4/18/03 2:37:24 pm)

--------------------------------------------------------------------------------

Here is the current springstyle data for the Japanese Smaller ships:

Go Ichi, laid down 1916

Length, 220 ft x Beam, 32.0 ft x Depth, 7.5 ft

754 tons normal displacement (596 tons standard)

Main battery: 4 x 5.0-inch

AA battery: 4 x 2.0-inch

Light battery: 12 x 1.0-inch

Weight of broadside: 272 lbs

Hull unarmored

Maximum speed for 2986 shp = 18.50 knots

Approximate cruising radius, 7000 nm / 12 kts

Typical complement: 72-94

Estimated cost, $417,000 (£104,000)

Remarks:

Oil firing.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 34 tons = 5 pct

Machinery ........................ 111 tons = 15 pct

Hull and fittings; equipment ..... 413 tons = 55 pct

Fuel, ammunition, stores ......... 196 tons = 26 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

754 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 558 tons

Standard displacement: 596 tons

Normal service: 754 tons

Full load: 878 tons

Loading submergence 126 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.33

Shellfire needed to sink: 1341 lbs = 21.5 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.7

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 53 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.21

Relative quality as a seaboat: 1.06

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.38

Hull speed coefficient 'M' = 7.38

'Natural speed' for length = 14.8 knots

Power going to wave formation

at top speed: 56 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 83 percent

Relative accommodation and working space: 109 percent

Displacement factor: 153 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.15

(Structure weight per square

foot of hull surface: 62 lbs)

Relative longitudinal hull strength: 2.56

(for 9.3 ft average freeboard;

freeboard adjustment +0.3 ft)

Relative composite hull strength: 1.24

Ri Ichi, laid down 1916

Length, 220 ft x Beam, 28.0 ft x Depth, 7.0 ft

678 tons normal displacement (558 tons standard)

Main battery: 6 x 4.0-inch

AA battery: 4 x 2.0-inch

Light battery: 12 x 1.0-inch

37 mines (25 tons misc. load)

Weight of broadside: 214 lbs

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 2811 shp = 18.50 knots

Approximate cruising radius, 5600 nm / 12 kts

Typical complement: 66-86

Estimated cost, $364,000 (£91,000)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 27 tons = 4 pct

Armor, total ..................... 13 tons = 2 pct

Armament 13 tons = 2 pct

Machinery ........................ 105 tons = 15 pct

Hull and fittings; equipment ..... 357 tons = 53 pct

Fuel, ammunition, stores ......... 151 tons = 22 pct

Miscellaneous weights ............ 25 tons = 4 pct

-----

678 tons = 100 pct

Estimated metacentric height, 1.0 ft

Displacement summary:

Light ship: 527 tons

Standard displacement: 558 tons

Normal service: 678 tons

Full load: 770 tons

Loading submergence 118 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.21

Shellfire needed to sink: 1130 lbs = 35.3 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.7

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 53 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.28

Relative quality as a seaboat: 1.05

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.38

Hull speed coefficient 'M' = 7.65

'Natural speed' for length = 14.8 knots

Power going to wave formation

at top speed: 55 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 85 percent

Relative accommodation and working space: 108 percent

Displacement factor: 146 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.16

(Structure weight per square

foot of hull surface: 57 lbs)

Relative longitudinal hull strength: 2.22

(for 9.1 ft average freeboard;

freeboard adjustment +0.3 ft)

Relative composite hull strength: 1.24

Mu Ichi, laid down 1916

Length, 220 ft x Beam, 25.0 ft x Depth, 7.0 ft

605 tons normal displacement (506 tons standard)

Main battery: 6 x 4.0-inch

AA battery: 4 x 2.0-inch

Light battery: 12 x 1.0-inch

Weight of broadside: 214 lbs

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 2569 shp = 18.50 knots

Approximate cruising radius, 5000 nm / 12 kts

Typical complement: 61-79

Estimated cost, $344,000 (£86,000)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 27 tons = 4 pct

Armor, total ..................... 13 tons = 2 pct

Armament 13 tons = 2 pct

Machinery ........................ 96 tons = 16 pct

Hull and fittings; equipment ..... 320 tons = 53 pct

Fuel, ammunition, stores ......... 129 tons = 21 pct

Miscellaneous weights ............ 20 tons = 3 pct

-----

605 tons = 100 pct

Estimated metacentric height, 0.8 ft

Displacement summary:

Light ship: 476 tons

Standard displacement: 506 tons

Normal service: 605 tons

Full load: 682 tons

Loading submergence 105 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.16

Shellfire needed to sink: 904 lbs = 28.2 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.6

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 55 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.40

Relative quality as a seaboat: 1.09

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.36

Hull speed coefficient 'M' = 7.95

'Natural speed' for length = 14.8 knots

Power going to wave formation

at top speed: 54 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 89 percent

Relative accommodation and working space: 98 percent

Displacement factor: 137 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.18

(Structure weight per square

foot of hull surface: 55 lbs)

Relative longitudinal hull strength: 2.04

(for 8.5 ft average freeboard;

freeboard adjustment -0.1 ft)

Relative composite hull strength: 1.24

Shi Ichi, laid down 1916

Length, 210 ft x Beam, 20.0 ft x Depth, 5.0 ft

330 tons normal displacement (284 tons standard)

Main battery: 2 x 4.0-inch

AA battery: 4 x 2.0-inch

Light battery: 8 x 1.0-inch

30 Depth Charges (10 tons misc. load)

Weight of broadside: 84 lbs

Hull unarmored

Battery armor:

Main, 1.0" shields

AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 1773 shp = 18.50 knots

Approximate cruising radius, 3300 nm / 12 kts

Typical complement: 39-50

Estimated cost, $180,000 (£45,000)

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 11 tons = 3 pct

Armor, total ..................... 7 tons = 2 pct

Armament 7 tons = 2 pct

Machinery ........................ 66 tons = 20 pct

Hull and fittings; equipment ..... 177 tons = 54 pct

Fuel, ammunition, stores ......... 59 tons = 18 pct

Miscellaneous weights ............ 10 tons = 3 pct

-----

330 tons = 100 pct

Estimated metacentric height, 0.6 ft

Displacement summary:

Light ship: 271 tons

Standard displacement: 284 tons

Normal service: 330 tons

Full load: 365 tons

Loading submergence 80 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.17

Shellfire needed to sink: 528 lbs = 16.5 x 4.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 54 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.31

Relative quality as a seaboat: 1.08

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.55

Sharpness coefficient: 0.34

Hull speed coefficient 'M' = 9.28

'Natural speed' for length = 14.5 knots

Power going to wave formation

at top speed: 52 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 93 percent

Relative accommodation and working space: 100 percent

Displacement factor: 140 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.15

(Structure weight per square

foot of hull surface: 40 lbs)

Relative longitudinal hull strength: 1.43

(for 7.2 ft average freeboard;

freeboard adjustment -0.5 ft)

Relative composite hull strength: 1.18

Ao Ichi, laid down 1914

Length, 370 ft x Beam, 35.0 ft x Depth, 12.0 ft

2220 tons normal displacement (1930 tons standard)

Main battery: 4 x 5.0-inch

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

42 Depth Charges (14 tons misc. load)

Weight of broadside: 283 lbs

Hull unarmored

Maximum speed for 6261 shp = 20.00 knots

Approximate cruising radius, 6500 nm / 12 kts

Typical complement: 162-210

Estimated cost, $655,000 (£164,000)

Remarks:

Oil firing.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 35 tons = 2 pct

Machinery ........................ 241 tons = 11 pct

Hull and fittings; equipment ..... 1572 tons = 71 pct

Fuel, ammunition, stores ......... 358 tons = 16 pct

Miscellaneous weights ............ 14 tons = 1 pct

-----

2220 tons = 100 pct

Estimated metacentric height, 1.6 ft

Displacement summary:

Light ship: 1862 tons

Standard displacement: 1930 tons

Normal service: 2220 tons

Full load: 2443 tons

Loading submergence 233 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.26

Shellfire needed to sink: 5019 lbs = 80.3 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.9

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 58 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.13

Relative quality as a seaboat: 1.16

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.67

'Natural speed' for length = 19.2 knots

Power going to wave formation

at top speed: 42 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 49 percent

Relative accommodation and working space: 91 percent

Displacement factor: 285 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 2.28

(Structure weight per square

foot of hull surface: 121 lbs)

Relative longitudinal hull strength: 2.01

(for 9.5 ft average freeboard;

freeboard adjustment -1.7 ft)

Relative composite hull strength: 2.07

Fu Ichi, laid down 1914

Length, 370 ft x Beam, 35.0 ft x Depth, 12.0 ft

2220 tons normal displacement (1930 tons standard)

Main battery: 4 x 5.0-inch

AA battery: 6 x 2.0-inch

Light battery: 18 x 1.0-inch

Weight of broadside: 283 lbs

Hull unarmored

Maximum speed for 6261 shp = 20.00 knots

Approximate cruising radius, 6500 nm / 12 kts

Typical complement: 162-210

Estimated cost, $655,000 (£164,000)

Remarks:

Oil firing.

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 35 tons = 2 pct

Machinery ........................ 241 tons = 11 pct

Hull and fittings; equipment ..... 1586 tons = 71 pct

Fuel, ammunition, stores ......... 358 tons = 16 pct

Miscellaneous weights ............ 0 tons = 0 pct

-----

2220 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 1862 tons

Standard displacement: 1930 tons

Normal service: 2220 tons

Full load: 2443 tons

Loading submergence 233 tons/foot

+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.23

Shellfire needed to sink: 5177 lbs = 82.8 x 5.0-inch shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.9

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 61 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.14

Relative quality as a seaboat: 1.21

+++++++++++++++++++++++++

Hull form characteristics:

Block coefficient: 0.50

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.67

'Natural speed' for length = 19.2 knots

Power going to wave formation

at top speed: 42 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 49 percent

Relative accommodation and working space: 96 percent

Displacement factor: 290 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 2.24

(Structure weight per square

foot of hull surface: 120 lbs)

Relative longitudinal hull strength: 2.12

(for 10.0 ft average freeboard;

freeboard adjustment -1.2 ft)

Relative composite hull strength: 2.15

Walter

17inc

Spammer wanna be

Posts: 5

(4/19/03 4:37:13 am)

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took one look! at your BBs you could have a hood on your hands Rooijen 10. your 11"and 14" Maine batter Armor would not stop a 15" shell going deep? in to cordite room and and blow your ships all it takes is one 15" round to find its mark and you can kiss all that money you spent good by. try going 15" to 17" on maine Batter Armor on the Guns.

Edited by: 17inc at: 4/19/03 4:38:45 am

King of Riva

Spammer wanna be

Posts: 48

(4/19/03 9:51:06 am)

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"Well this is how the designs are at the moment. Changes will occur. I too believe I went a bit crazy with the number of AAs."

Oh yes.... :)

"And remember. It'll be quite hazardous to land on the Hosho with all those AA guns in the way. ;)"

That´s for sure. *g* Hosho must look more like a cactus than an aircraft carrier!

"PS: There are two things that surprise me: 1) that you made no remark on the two quads on the Jakumo;"

Why should I? The idea of quads is not new nor is it unique. The french went for quads on their BBs quite early (Normandie-class 1913) for example. Other nations also played with that idea. Maybe it is not _that_ realistic but this is an alternate world after all. Two quads on a cruiser in 1914 (or at anytime) is somewhat odd but technically possible. And there is another thought: I don´t know how many of those ships you own. If it is maybe just a single ship, one can make quite a good story out of it. Some kind of experiment or something.

It would also be interesting to know more about that quad turret. If the guns are in single craddles, you may have problems to put them on a cruisers hull of 70ft. because the turret will eat up most of your beam. So there´s little if any room left besides it what should make it relatively valnurable to shell and torpedo damage. But again, that´s up to you and your story writing.

On the other hand, if the turret is small the guns will not be in single craddles. This might lead to muzzle interference or something....

It is an interesting idea, which some potential for a good story. So why should I comment on it? Let´s see what you make out of it...

"2) that you made no remark about the triple mains and triple secondaries on the Zuiho (I doubt that is realistic in 1920)"

Browsing through your carrier stats again, I can find no triples on Zuiho?! But even if so, Refit and Repair also had their seconaries in triples, right? So why bother?

"3) that you didn't make this remark when I posted the partial data in the Meeting Place forum. That data has been there for a while now."

*shrug shoulders*

Maybe I´ve missed it, maybe I´ve forgotten to comment. Don´t know. But what is interesting is that nobody else did. Most people don´t go through all this in detail, though, nor do they think about realism when reading it. At least that´s my guess. Otherwise there should have been many more comments and opinions written down. right?

Cheers,

HoOmAn

Rooijen10

Spammer wanna be

Posts: 77

(4/19/03 9:54:36 am)

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Armor-wise, they might not be the best. It might not have been the wisest of choises. The Fuso and Nagato class armor scheme is based on the data given at Warships1.com. Sure I could have gone for better armor. The Kii class is a bit smaller than what is given on Warships1.com, but armor is a bit better.

A few things though:

1) If I were to encounter a Hood, it'll be 1 BC vs. 2BBs (the Japanese BBs are grouped in pairs at the moment. See 'The Empire of Japan' thread in 'The Meeting Place Forum'. Will become 3-4 once the Kii ships are finished). That means 8 15" guns vs 24 14" guns (and later 8 15" guns vs 24 14" guns and 10-20 15" guns)

2) Actually it's worse than that. It'll be 1 BC vs 2BBs, 2-4ACs, 4-5 CLs and 22-25 DDs at 1/1/1921, and don't be fooled by the smaller craft. If you are actually foolish enough to take on my BBs, better have a support group with you.

3) My most fearsome weapon is not listed... because it is not a naval weapon. :-)

4) If you want to get at the cordite room through my turret, you'll have to have your shells come in at a pretty steep angle of fall and the 15"/42 (38.1 cm) Mark Is have a maximum elevation of about 20 degrees (at least that is according to the data given at Warships1.com). Go for a deckshot like Bismarck did rather than a turret aimed shot.

5) If you go for a historical type of Hood... You'll have to scap it since at 41,000 tons it'll be over the limit. :-)

Wait a sec... according to one of your posts on Warships1.com's discussion board (no longer there but I saved them and some other stuff), you have 6 QEs and will have an additional 4 Hoods... but Australia is only allowed to have 6 capital ships and a total of 200,000 tons of capital ship tonnage. Since the QEs were built about 1912-1913 and you can only replace 20 years after being laid down, it'll be 1932-1933 before you can think about replacing them (unless you'll ignore the treaty).

Might be wise to take a very good look at the Treaty.;)

Walter

Edited by: Rooijen10 at: 4/19/03 2:34:22 pm

Rooijen10

Spammer wanna be

Posts: 78

(4/19/03 10:05:16 am)

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"Hosho must look more like a cactus than an aircraft carrier!"

LOL

About the quad... I didn't have a better idea how to sim the 1904 Sharnhorst/Gneisenau 8.2 inch layout (two twin turrets and four in single casemates (??? not sure about that)) without listing the other half as secondaries. Maybe you have a better idea, or maybe something needs to be added.

The triples on the Zuiho have been adjusted together with the AAAs, but it is still unchanged in 'The Empire of Japan' thread in 'The Meeting Place' forum so you can see it there. I thought triple mains and secondaries on the carrier would not be realistic.

Walter

Pengolodh

Spammer wanna be

Posts: 3

(4/19/03 10:26:45 am)

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The Brits did have 4inch triples as secondaries on Refit, Repair, Outrageous, Spurious and Curious - the mountings had each barrel in an individual cradle, and was a very cumbersome piece to operate, and had an exceptionally large crew. The mountings quickly became wildly unpopular in the Navy, and the only reason they were on several classes of ships was because Fisher wanted them there, and all ships in the 2.5 classes had been laid down before any had entered service.

Best regards

Pengolodh

"Iraq will not be defeated. Iraq has now already achieved victory - apart from some technicalities."

- Mohsen Khalil, Iraqi Ambassador to the Arab League

17inc

Spammer wanna be

Posts: 7

(4/19/03 7:00:52 pm)

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your rigth in one way but afthere the QEs come out from there rebuild mid to late 1930s they will have 30 elevation on the guns and the 3QEs with new 4.5" guns as they would look in the 1940s so yes in one cents your on 20 elevating the guns thats if they stay in there 1919 look . rooijen 10

Rooijen10

Spammer wanna be

Posts: 79

(4/20/03 4:23:14 am)

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From the data of Warships1.com, the guns of the Fuso (and Ise and Kongo) ships had an original maximum elevation of 25 degrees when constructed. In the 1920s they were changed to 33 degrees and during the 1930s modernisation to 43 degrees. The 14 inch guns on those of the Alternate World have an elevation of 30 degrees on the Fuso class and 35 degrees on the Nagato class.

You could go for a historical QE with 20 degree elevation, but they could have been created with a 25 or 30 degree elevation rather than the 20 degree in this Alternate World.

Walter

thesmilingassassin

Spammer wanna be

Posts: 26

(4/22/03 4:47:25 am)

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...the standard gun elevation in the alternate world would be between 20 and 30 degrees, at least in 1921.

The higher elevation of the japanese guns (historically)was if i recall correctly for the use of heavy caliber AA shells the Japanese were experimenting with. As to armor you don't nessasarily need 15" armor to defeat a 15" shell, angles and armor type play a big role.

Rooijen10

Spammer wanna be

Posts: 81

(4/22/03 12:28:02 pm)

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Before posting the data for the 14" guns, I was wondering what elevation I should take. For some reason, I thought it would be better if I didn't go for the 45 degrees and went for 30 and 35 degrees.

Walter

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