GB/CB/1923, Great Britain Battlecruiser laid down 1923 (Engine 1950) Displacement: 41,508 t light; 43,039 t standard; 44,550 t normal; 45,758 t full load Dimensions: Length overall / water x beam x draught 867.97 ft / 865.00 ft x 112.00 ft x 34.00 ft (normal load) 264.56 m / 263.65 m x 34.14 m x 10.36 m Armament: 9 - 14.00" / 356 mm guns (3x3 guns), 1,372.00lbs / 622.33kg shells, 1923 Model Breech loading guns in turrets (on barbettes) on centreline ends, majority forward, 1 raised mount - superfiring 16 - 5.50" / 140 mm guns (8x2 guns), 83.19lbs / 37.73kg shells, 1923 Model Quick firing guns in turrets (on barbettes) on side, all amidships, 4 raised mounts - superfiring 6 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1923 Model Anti-aircraft guns in deck mounts on side ends, majority forward, all raised mounts - superfiring 36 - 1.57" / 40.0 mm guns (3x12 guns), 1.95lbs / 0.89kg shells, 1923 Model Anti-aircraft guns in deck mounts on side, evenly spread, 2 raised mounts Weight of broadside 14,061 lbs / 6,378 kg Shells per gun, main battery: 80 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 9.00" / 229 mm 700.00 ft / 213.36 m 16.00 ft / 4.88 m Ends: Unarmoured Main Belt covers 124 % of normal length - Torpedo Bulkhead: 2.00" / 51 mm 700.00 ft / 213.36 m 33.00 ft / 10.06 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 11.0" / 279 mm 6.00" / 152 mm 11.0" / 279 mm 2nd: 4.00" / 102 mm 4.00" / 102 mm 4.00" / 102 mm 3rd: 1.00" / 25 mm - - - Armour deck: 4.00" / 102 mm, Conning tower: 11.00" / 279 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 4 shafts, 268,276 shp / 200,134 Kw = 36.50 kts Range 5,400nm at 15.00 kts Bunker at max displacement = 2,719 tons Complement: 1,533 - 1,993 Cost: £11.135 million / $44.540 million Distribution of weights at normal displacement: Armament: 1,758 tons, 3.9 % Armour: 14,184 tons, 31.8 % - Belts: 4,109 tons, 9.2 % - Torpedo bulkhead: 1,709 tons, 3.8 % - Armament: 3,220 tons, 7.2 % - Armour Deck: 4,848 tons, 10.9 % - Conning Tower: 298 tons, 0.7 % Machinery: 6,418 tons, 14.4 % Hull, fittings & equipment: 19,148 tons, 43.0 % Fuel, ammunition & stores: 3,042 tons, 6.8 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 65,787 lbs / 29,840 Kg = 47.9 x 14.0 " / 356 mm shells or 9.9 torpedoes Stability (Unstable if below 1.00): 1.13 Metacentric height 7.4 ft / 2.3 m Roll period: 17.2 seconds Steadiness - As gun platform (Average = 50 %): 51 % - Recoil effect (Restricted arc if above 1.00): 0.47 Seaboat quality (Average = 1.00): 1.03 Hull form characteristics: Hull has low forecastle and transom stern Block coefficient: 0.473 Length to Beam Ratio: 7.72 : 1 'Natural speed' for length: 34.41 kts Power going to wave formation at top speed: 57 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 5.00 degrees Stern overhang: 0.00 ft / 0.00 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 34.00 ft / 10.36 m - Forecastle (20 %): 26.00 ft / 7.92 m (27.00 ft / 8.23 m aft of break) - Mid (50 %): 27.00 ft / 8.23 m - Quarterdeck (15 %): 27.00 ft / 8.23 m - Stern: 27.00 ft / 8.23 m - Average freeboard: 27.44 ft / 8.36 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 93.1 % - Above water (accommodation/working, high = better): 219.8 % Waterplane Area: 65,509 Square feet or 6,086 Square metres Displacement factor (Displacement / loading): 108 % Structure weight / hull surface area: 205 lbs/sq ft or 1,003 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.95 - Longitudinal: 1.47 - Overall: 1.00 Hull space for machinery, storage, compartmentation is adequate Room for accommodation and workspaces is excellent
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Monday, November 21, 2005
This is my latest attempt at an "edgy" very fast cruiser killer
Frank Fox calls this sort of ship a "cruiser killer". That is how he describes the Alaska class, which is one of his favorite ship designs. I tried my hand again at a very fast armoured cruiser, and given that the design has 14in guns, we would be destined to call the design a battlecruiser. I wanted at least 36 knots, and I was able to achieve 36.5 knots. the armour belt is 9in, which should be sufficient to protect against the lesser cruisers. Those who have been following my string of designs may recognize this as being reminiscent of a design I did in the summer of 2001. This is the Springsharp report:
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