WesWorld

The opposite end of the spectrum, CA-wise: a small, modestly armed/armored ship with a load of torpedoes. Is she a nasty little piranha, or chum in a shark's path?

SR Varanasi, laid down 1927

Length, 570 ft x Beam, 57.0 ft x Depth, 19.5 ft
8870 tons normal displacement (8098 tons standard)

Main battery: 6 x 8.2-inch (3 x 2; 1 superfiring)
Secondary battery: 10 x 4.1-inch
AA battery: 8 x 1.4-inch
Light battery: 8 x 0.6-inch

Weight of broadside: 2011 lbs

16 TT, 21.7"

Main belt, 3.9 inches; ends unarmored
Armor deck, average 1.0 inches
C.T., 3.9 inches

Battery armor:
Main, 3.9" / secondary, 2.0" shields
AA, 1.0" shields / light guns, 1.0" shields

Maximum speed for 75021 shp = 31.56 knots
Approximate cruising radius, 10000 nm / 12 kts

Typical complement: 457-594


Estimated cost, $11.840 million (£2.960 million)

Remarks:

Superfiring turret is aft.

Relative extent of belt armor, 110 percent of 'typical' coverage.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 251 tons = 3 pct
Armor, total ..................... 1378 tons = 16 pct

Belt 590 tons = 7 pct
Deck 373 tons = 4 pct
C.T. 36 tons = 0 pct
Armament 379 tons = 4 pct

Machinery ........................ 2368 tons = 27 pct
Hull and fittings; equipment ..... 3706 tons = 42 pct
Fuel, ammunition, stores ......... 1116 tons = 13 pct
Miscellaneous weights ............ 50 tons = 1 pct
-----
8870 tons = 100 pct

Estimated metacentric height, 2.6 ft

Displacement summary:

Light ship: 7753 tons
Standard displacement: 8098 tons
Normal service: 8870 tons
Full load: 9451 tons

Loading submergence 576 tons/foot

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Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.10

Shellfire needed to sink: 8590 lbs = 31.2 x 8.2-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, 60 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.60

Relative quality as a seaboat: 1.04

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Hull form characteristics:

Block coefficient: 0.49
Sharpness coefficient: 0.33
Hull speed coefficient 'M' = 8.42
'Natural speed' for length = 23.9 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: 109 percent

Relative accommodation and working space: 99 percent


Displacement factor: 109 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.99
(Structure weight per square
foot of hull surface: 109 lbs)

Relative longitudinal hull strength: 1.33
(for 18.5 ft average freeboard;
freeboard adjustment +3.7 ft)

Relative composite hull strength: 1.02

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[Machine-readable parameters: Spring Style v. 1.2.1]

570.00 x 57.00 x 19.50; 18.50 -- Dimensions
0.49 -- Block coefficient
1927 -- Year laid down
31.56 / 10000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
50 tons -- Miscellaneous weights
++++++++++
6 x 8.20; 3; 1 -- Main battery; turrets; superfiring
Superfiring turret aft only
:
10 x 4.10; 0 -- Secondary battery; turrets
Gun-shields
:
8 x 1.40 -- Tertiary (QF/AA) battery
Gun-shields
:
8 x 0.60 -- Fourth (light) battery
16 / 0 / 21.70 -- TT / submerged / size
++++++++++
3.90 / 0.00 / 0.00 / 0.00; 110 -- Belt armor; relative extent
1.00 / 3.90 -- Deck / CT
3.90 / 2.00 / 1.00 / 1.00 -- Battery armor


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She seems quite nice. I'd expect HMS York to beat her however. Her armour is better; 5.5" side, 2" deck.

BTW, on slightly bigger displacement i've managed to get 12x8" guns... Didn't really like that ship though. I really don't think you'll be building this ship. My 1924 CL design would cream her.....

York has a heavier belt, heavier deck (not that I think that matters much), and higher speed - but near as I can tell, she's got tissue-thin turret protection, only six torps, and much less AA ordnance.

Quoted

BTW, on slightly bigger displacement i've managed to get 12x8" guns... Didn't really like that ship though. I really don't think you'll be building this ship. My 1924 CL design would cream her.....

Well, c'mon, share...

J

... and personally I'd like something a little bit bigger... If I want an 8,000 ton vessel, I will build a light cruiser.

Quoted

York has a heavier belt, heavier deck (not that I think that matters much), and higher speed - but near as I can tell, she's got tissue-thin turret protection, only six torps, and much less AA ordnance.

Well, that one ain't the only vessel with such turret armor.
While about 2,000 tons heavier than the Varanasi, she's still 3,000 tons under the Heavy Cruiser limit.I tried to stick as close to the original vessel as possible, but it's slightly slower, uses Wesworld Japan guns, bigger draft, and beam is 2.2 feet wider (Not sure why I went for 10,000 tons standard though):

Takao, Japan Heavy Cruiser laid down 1927

Displacement:
9,513 t light; 10,000 t standard; 11,795 t normal; 13,185 t full load
Loading submergence 753 tons/feet

Dimensions:
650.00 ft x 64.50 ft x 19.70 ft (normal load)
198.12 m x 19.66 m x 6.00 m

Armament:
10 - 7.87" / 200 mm guns (5 Main turrets x 2 guns, 2 superfiring turrets)
8 - 5.12" / 130 mm guns (4 2nd turrets x 2 guns)
12 - 1.57" / 40 mm AA guns
24 - 0.98" / 25 mm guns
Weight of broadside 3,012 lbs / 1,366 kg
12 - 24.0" / 609.6 mm above water torpedoes

Armour:
Belt 4.00" / 102 mm, ends unarmoured
Belts cover 105 % of normal area
Main turrets 1.00" / 25 mm, 2nd turrets 1.00" / 25 mm
AA gun shields 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 1.20" / 30 mm, Conning tower 1.00" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 90,000 shp / 67,140 Kw = 31.98 kts
Range 12,000nm at 15.00 kts

Complement:
565 - 735

Cost:
£3.807 million / $15.228 million

Distribution of weights at normal displacement:
Armament: 377 tons, 3.2 %
Armour: 1,505 tons, 12.8 %
Belts: 697 tons, 5.9 %, Armament: 211 tons, 1.8 %, Armour Deck: 585 tons, 5.0 %
Conning Tower: 11 tons, 0.1 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,841 tons, 24.1 %
Hull, fittings & equipment: 4,691 tons, 39.8 %
Fuel, ammunition & stores: 2,282 tons, 19.3 %
Miscellaneous weights: 100 tons, 0.8 %

Metacentric height 4.4

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.34
Shellfire needed to sink: 13,511 lbs / 6,128 Kg = 55.4 x 7.9 " / 200 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.6
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 53 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.42
Relative quality as seaboat: 1.07

Hull form characteristics:
Block coefficient: 0.500
Sharpness coefficient: 0.33
Hull speed coefficient 'M': 8.73
'Natural speed' for length: 25.50 kts
Power going to wave formation at top speed: 53 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 103.9 %
Relative accommodation and working space: 117.4 %
(Average = 100%)
Displacement factor: 115 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.00
(Structure weight / hull surface area: 114 lbs / square foot or 556 Kg / square metre)
Relative longitudinal hull strength: 1.00
(for 17.80 ft / 5.43 m average freeboard, freeboard adjustment 2.15 ft)
Relative composite hull strength: 1.00

Walter

Quoted

Well, c'mon, share...

There is a picture a few threads down, but no stats yet.

Quoted

BTW, on slightly bigger displacement i've managed to get 12x8" guns... Didn't really like that ship though.

Anything like this one?

N/A, N/A Light Heavy Cruiser laid down 1927

Displacement:
7,505 t light; 7,964 t standard; 9,257 t normal; 10,255 t full load
Loading submergence 646 tons/feet

Dimensions:
600.00 ft x 60.00 ft x 18.00 ft (normal load)
182.88 m x 18.29 m x 5.49 m

Armament:
12 - 8.00" / 203 mm guns
12 - 2.95" / 75 mm guns (6 2nd turrets x 2 guns)
12 - 1.97" / 50 mm AA guns
24 - 0.98" / 25 mm guns
Weight of broadside 3,284 lbs / 1,489 kg
8 - 24.0" / 609.6 mm above water torpedoes

Armour:
Belt 2.00" / 51 mm, ends unarmoured
Belts cover 113 % of normal area
Main gun shields 2.00" / 51 mm, 2nd turrets 1.00" / 25 mm
AA gun shields 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 1.00" / 25 mm, Conning tower 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 70,671 shp / 52,721 Kw = 31.00 kts
Range 10,000nm at 15.00 kts

Complement:
471 - 613

Cost:
£3.345 million / $13.379 million

Distribution of weights at normal displacement:
Armament: 410 tons, 4.4 %
Armour: 905 tons, 9.8 %
Belts: 336 tons, 3.6 %, Armament: 132 tons, 1.4 %, Armour Deck: 419 tons, 4.5 %
Conning Tower: 19 tons, 0.2 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,231 tons, 24.1 %
Hull, fittings & equipment: 3,909 tons, 42.2 %
Fuel, ammunition & stores: 1,752 tons, 18.9 %
Miscellaneous weights: 50 tons, 0.5 %

Metacentric height 3.9

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.34
Shellfire needed to sink: 9,094 lbs / 4,125 Kg = 35.5 x 8.0 " / 203 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.3
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 52 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.29
Relative quality as seaboat: 1.04

Hull form characteristics:
Block coefficient: 0.500
Sharpness coefficient: 0.33
Hull speed coefficient 'M': 8.74
'Natural speed' for length: 24.49 kts
Power going to wave formation at top speed: 54 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 112.9 %
Relative accommodation and working space: 122.2 %
(Average = 100%)
Displacement factor: 106 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.00
(Structure weight / hull surface area: 111 lbs / square foot or 541 Kg / square metre)
Relative longitudinal hull strength: 1.06
(for 16.70 ft / 5.09 m average freeboard, freeboard adjustment 1.79 ft)
Relative composite hull strength: 1.01

Not really. Ok so shes a bit bigger than i thought.


Trento, Italian Cruiser laid down 1926

Displacement:
8,694 t light; 9,170 t standard; 10,288 t normal; 11,141 t full load
Loading submergence 584 tons/feet

Dimensions:
557.74 ft x 59.06 ft x 22.31 ft (normal load)
170.00 m x 18.00 m x 6.80 m

Armament:
12 - 8.00" / 203 mm guns (3 Main turrets x 4 guns, 1 superfiring turret)
12 - 3.00" / 76 mm guns
8 - 0.79" / 20 mm guns
Weight of broadside 3,236 lbs / 1,468 kg
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
Belt 3.94" / 100 mm, ends unarmoured
Belts cover 104 % of normal area
Main turrets 3.94" / 100 mm
Armour deck 1.57" / 40 mm, Conning tower 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 72,000 shp / 53,712 Kw = 30.42 kts
Range 4,000nm at 20.00 kts

Complement:
510 - 663

Cost:
£3.340 million / $13.359 million

Distribution of weights at normal displacement:
Armament: 404 tons, 3.9 %
Armour: 1,649 tons, 16.0 %
Belts: 563 tons, 5.5 %, Armament: 463 tons, 4.5 %, Armour Deck: 595 tons, 5.8 %
Conning Tower: 28 tons, 0.3 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,305 tons, 22.4 %
Hull, fittings & equipment: 4,286 tons, 41.7 %
Fuel, ammunition & stores: 1,593 tons, 15.5 %
Miscellaneous weights: 50 tons, 0.5 %

Metacentric height 2.9

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.14
Shellfire needed to sink: 10,786 lbs / 4,892 Kg = 42.1 x 8.0 " / 203 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.4
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 50 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.79
Relative quality as seaboat: 1.10

Hull form characteristics:
Block coefficient: 0.490
Sharpness coefficient: 0.33
Hull speed coefficient 'M': 7.84
'Natural speed' for length: 23.62 kts
Power going to wave formation at top speed: 56 %
Trim: 45
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 103.7 %
Relative accommodation and working space: 131.3 %
(Average = 100%)
Displacement factor: 108 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.94
(Structure weight / hull surface area: 120 lbs / square foot or 588 Kg / square metre)
Relative longitudinal hull strength: 1.74
(for 19.69 ft / 6.00 m average freeboard, freeboard adjustment 4.46 ft)
Relative composite hull strength: 1.00

Well, yours is a bit more acceptable than my <8000 ton "thing". That thing of mine is actually my Naka design Light Cruiser. I took her 4x2 13cm guns off and threw those 8 inch guns on it, slightly adjusted it and got that "thing" above.

Walter

Here´s one of my old ones. Most of you already know her and currently I doubt I´ll build her. I also need to redo some things on the drawing...




Schwerer Kreuzer 26, laid down 1926

Length, 185.0 m x Beam, 19.0 m x Depth, 6.3 m
10047 tonnes normal displacement (9202 tonnes standard)

Main battery: 8 x 21.0-cm (4 x 2; 2 superfiring)
Secondary battery: 6 x 10.5-cm
AA battery: 20 x 4.0-cm
Light battery: 12 x 2.0-cm

Weight of broadside: 1143 kg

8 TT, 53.3 cm

Main belt, 8.0 cm; ends unarmored
Armor deck, average 4.0 cm
Conning tower, 10.0 cm

Battery armor:
Main, 8.0 cm / secondary, 2.5 cm shields
AA, 1.0 cm shields / light guns, 1.0 cm shields

Maximum speed for 60035 shaft kw = 31.83 knots
Approximate cruising radius, 10000 nm / 12 knots

Typical complement: 502-652


Estimated cost, $12.882 million (£3.220 million)

Remarks:

Relative extent of belt armor, 108 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 314 tonnes = 3 pct
Armor, total ..................... 1600 tonnes = 16 pct

Belt 522 tonnes = 5 pct
Deck 645 tonnes = 6 pct
C.T. 39 tonnes = 0 pct
Armament 393 tonnes = 4 pct

Machinery ........................ 2575 tonnes = 26 pct
Hull and fittings; equipment ..... 4252 tonnes = 42 pct
Fuel, ammunition, stores ......... 1256 tonnes = 13 pct
Miscellaneous weights ............ 50 tonnes = 0 pct
-----
10047 tonnes = 100 pct

Estimated metacentric height, 1.0 m

Displacement summary:

Light ship: 8791 tonnes
Standard displacement: 9202 tonnes
Normal service: 10047 tonnes
Full load: 10683 tonnes

Loading submergence 2076 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.20

Shellfire needed to sink: 4494 kg = 35.0 x 21.0-cm 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, 51 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.45

Relative quality as a seaboat: 1.02

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


Hull form characteristics:

Block coefficient: 0.45
Sharpness coefficient: 0.32
Hull speed coefficient 'M' = 8.60
'Natural speed' for length = 24.6 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: 108 percent

Relative accommodation and working space: 125 percent


Displacement factor: 108 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.99
(Structure weight per square
metre of hull surface: 572 kg)

Relative longitudinal hull strength: 1.18
(for 5.30 m average freeboard;
freeboard adjustment +0.68 m)

Relative composite hull strength: 1.01

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


[Machine-readable parameters: Spring Style v. 1.2.1]

606.80 x 62.32 x 20.66; 17.38 -- Dimensions
0.45 -- Block coefficient
1926 -- Year laid down
31.83 / 10000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
50 tons -- Miscellaneous weights
++++++++++
8 x 8.27; 4; 2 -- Main battery; turrets; superfiring
:
6 x 4.13; 0 -- Secondary battery; turrets
Gun-shields
:
20 x 1.57 -- Tertiary (QF/AA) battery
Gun-shields
:
12 x 0.79 -- Fourth (light) battery
8 / 0 / 20.98 -- TT / submerged / size
++++++++++
3.15 / 0.00 / 0.00 / 0.00; 108 -- Belt armor; relative extent
1.57 / 3.94 -- Deck / CT
3.15 / 0.98 / 0.39 / 0.39 -- Battery armor


(Note: For portability, values are stored in Anglo-American units)


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