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
Thursday, May 23rd 2024, 12:03pm
Go to the top of the page
