Ger/CB/1943, Germany Battlecruiser laid down 1943 Displacement: 118,293 t light; 123,122 t standard; 130,000 t normal; 135,502 t full load Dimensions: Length overall / water x beam x draught 1,304.66 ft / 1,300.00 ft x 150.00 ft x 41.00 ft (normal load) 397.66 m / 396.24 m x 45.72 m x 12.50 m Armament: 9 - 21.00" / 533 mm guns (3x3 guns), 4,630.50lbs / 2,100.36kg shells, 1943 Model Breech loading guns in turrets (on barbettes) on side ends, majority forward, 1 raised mount - superfiring 16 - 6.00" / 152 mm guns (8x2 guns), 108.00lbs / 48.99kg shells, 1943 Model Quick firing guns in turrets (on barbettes) on side, all amidships 16 - 4.00" / 102 mm guns (8x2 guns), 32.00lbs / 14.51kg shells, 1943 Model Anti-aircraft guns in turrets (on barbettes) on side ends, evenly spread, all raised mounts - superfiring 72 - 1.57" / 40.0 mm guns (18x4 guns), 1.95lbs / 0.89kg shells, 1943 Model Anti-aircraft guns in deck mounts on side, evenly spread, 13 raised mounts 56 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1943 Model Anti-aircraft guns in deck mounts on side, evenly spread, 36 raised mounts Weight of broadside 44,069 lbs / 19,989 kg Shells per gun, main battery: 90 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 13.0" / 330 mm 850.00 ft / 259.08 m 17.00 ft / 5.18 m Ends: Unarmoured Main Belt covers 101 % of normal length - Torpedo Bulkhead: 4.00" / 102 mm 850.00 ft / 259.08 m 37.00 ft / 11.28 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 15.0" / 381 mm 11.0" / 279 mm 15.0" / 381 mm 2nd: 6.00" / 152 mm 6.00" / 152 mm 6.00" / 152 mm 3rd: 1.00" / 25 mm 1.00" / 25 mm 1.00" / 25 mm 4th: 1.00" / 25 mm - - - Armour deck: 7.00" / 178 mm, Conning tower: 15.00" / 381 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 8 shafts, 575,246 shp / 429,134 Kw = 37.00 kts Range 8,000nm at 18.00 kts Bunker at max displacement = 12,380 tons Complement: 3,422 - 4,450 Cost: £71.001 million / $284.004 million Distribution of weights at normal displacement: Armament: 5,509 tons, 4.2 % Armour: 38,596 tons, 29.7 % - Belts: 7,940 tons, 6.1 % - Torpedo bulkhead: 4,655 tons, 3.6 % - Armament: 7,231 tons, 5.6 % - Armour Deck: 17,942 tons, 13.8 % - Conning Tower: 829 tons, 0.6 % Machinery: 14,857 tons, 11.4 % Hull, fittings & equipment: 59,331 tons, 45.6 % Fuel, ammunition & stores: 11,707 tons, 9.0 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 194,150 lbs / 88,065 Kg = 41.9 x 21.0 " / 533 mm shells or 34.9 torpedoes Stability (Unstable if below 1.00): 1.25 Metacentric height 13.7 ft / 4.2 m Roll period: 17.0 seconds Steadiness - As gun platform (Average = 50 %): 56 % - Recoil effect (Restricted arc if above 1.00): 0.41 Seaboat quality (Average = 1.00): 1.11 Hull form characteristics: Hull has a flush deck Block coefficient: 0.569 Length to Beam Ratio: 8.67 : 1 'Natural speed' for length: 36.06 kts Power going to wave formation at top speed: 48 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 4.00 degrees Stern overhang: 2.00 ft / 0.61 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 38.00 ft / 11.58 m - Forecastle (20 %): 28.00 ft / 8.53 m - Mid (50 %): 28.00 ft / 8.53 m - Quarterdeck (15 %): 28.00 ft / 8.53 m - Stern: 28.00 ft / 8.53 m - Average freeboard: 28.80 ft / 8.78 m Ship tends to be wet forward Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 79.9 % - Above water (accommodation/working, high = better): 215.9 % Waterplane Area: 138,550 Square feet or 12,872 Square metres Displacement factor (Displacement / loading): 116 % Structure weight / hull surface area: 320 lbs/sq ft or 1,564 Kg/sq metre Hull strength (Relative): - Cross-sectional: 1.21 - Longitudinal: 0.94 - Overall: 1.00 Hull space for machinery, storage, compartmentation is excellent Room for accommodation and workspaces is excellent
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Tuesday, October 18, 2005
The extravagantly large and fast version of the Ger/CB/1943
This version of the design for the Ger/CB/1943 matches my current thoughts about what such a ship should be like. The size is somewhat larger, so that a maximum speed of 37 knots can be achieved, along with an 18 knot cruising speed for a range of 8,000 nm. The belt is a modest 13in. I prefer twin turrets for the secondary and tertiary batteries, so the armament is 9-21in, 16-6in QF, 16-4in AA, 72-40mm AA quad, and 56-20mm AA single. This is the Springsharp report:
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