US/CB/1941 Large A2, Enter country Enter ship type laid down 1941 (Engine 1947) Displacement: 105,619 t light; 110,141 t standard; 116,500 t normal; 121,587 t full load Dimensions: Length overall / water x beam x draught 1,254.10 ft / 1,250.00 ft x 150.00 ft x 37.00 ft (normal load) 382.25 m / 381.00 m x 45.72 m x 11.28 m Armament: 9 - 21.00" / 533 mm guns (3x3 guns), 4,630.50lbs / 2,100.36kg shells, 1941 Model Breech loading guns in turrets (on barbettes) on centreline ends, majority forward, 1 raised mount - superfiring 24 - 5.10" / 130 mm guns (12x2 guns), 66.33lbs / 30.08kg shells, 1941 Model Breech loading guns in turrets (on barbettes) on side, all amidships, 4 raised mounts - superfiring 84 - 1.57" / 40.0 mm guns (41 mounts), 1.95lbs / 0.89kg shells, 1941 Model Breech loading guns in deck mounts with hoists on side ends, majority forward, 14 raised mounts - superfiring Weight of broadside 43,430 lbs / 19,700 kg Shells per gun, main battery: 90 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 15.0" / 381 mm 810.00 ft / 246.89 m 17.00 ft / 5.18 m Ends: Unarmoured Main Belt covers 100 % of normal length - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 17.0" / 432 mm 9.00" / 229 mm 15.0" / 381 mm 2nd: 4.00" / 102 mm 3.00" / 76 mm 4.00" / 102 mm 3rd: 2.00" / 51 mm - - - Armour deck: 8.00" / 203 mm, Conning tower: 17.00" / 432 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 8 shafts, 447,625 shp / 333,928 Kw = 35.00 kts Range 12,000nm at 15.00 kts Bunker at max displacement = 11,446 tons Complement: 3,152 - 4,098 Cost: £60.612 million / $242.450 million Distribution of weights at normal displacement: Armament: 5,429 tons, 4.7 % Armour: 37,797 tons, 32.4 % - Belts: 8,786 tons, 7.5 % - Torpedo bulkhead: 0 tons, 0.0 % - Armament: 8,073 tons, 6.9 % - Armour Deck: 20,065 tons, 17.2 % - Conning Tower: 874 tons, 0.7 % Machinery: 11,058 tons, 9.5 % Hull, fittings & equipment: 51,335 tons, 44.1 % Fuel, ammunition & stores: 10,881 tons, 9.3 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 206,334 lbs / 93,591 Kg = 44.6 x 21.0 " / 533 mm shells or 9.1 torpedoes Stability (Unstable if below 1.00): 1.17 Metacentric height 12.4 ft / 3.8 m Roll period: 17.9 seconds Steadiness - As gun platform (Average = 50 %): 71 % - Recoil effect (Restricted arc if above 1.00): 0.63 Seaboat quality (Average = 1.00): 1.41 Hull form characteristics: Hull has a flush deck Block coefficient: 0.588 Length to Beam Ratio: 8.33 : 1 'Natural speed' for length: 35.36 kts Power going to wave formation at top speed: 46 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 3.00 degrees Stern overhang: 2.00 ft / 0.61 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 40.00 ft / 12.19 m - Forecastle (20 %): 35.00 ft / 10.67 m - Mid (50 %): 35.00 ft / 10.67 m - Quarterdeck (15 %): 35.00 ft / 10.67 m - Stern: 35.00 ft / 10.67 m - Average freeboard: 35.40 ft / 10.79 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 66.1 % - Above water (accommodation/working, high = better): 286.7 % Waterplane Area: 135,571 Square feet or 12,595 Square metres Displacement factor (Displacement / loading): 113 % Structure weight / hull surface area: 278 lbs/sq ft or 1,360 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.99 - Longitudinal: 1.06 - Overall: 1.00 Hull space for machinery, storage, compartmentation is excellent Room for accommodation and workspaces is excellent Ship has slow, easy roll, a good, steady gun platform Good seaboat, rides out heavy weather easily
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Friday, June 10, 2005
A new design for the US/CB/1941 Large
I just redesigned the US/CB/1941 Large in Springsharp. I used my new understanding about how to specify guns so that Springsharp knows what is superfiring and what is not. I will be curious to compare this version with what I did back in April (I believe it was). The photo is not affected by this, except, perhaps, that the turrets should be spread further apart. I am pleased with the result, since the design earns the following assessment from Springsharp: "Ship has slow, easy roll, [and is] a good, steady gun platform. [The ship is a ] Good seaboat, [and] rides out heavy weather easily." This is the Springsharp report:
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