GB/CB/SuperFast A2, Great Britain Battlecruiser laid down 1921 Displacement: 37,159 t light; 38,389 t standard; 39,712 t normal; 40,770 t full load Dimensions: Length overall / water x beam x draught 930.65 ft / 930.00 ft x 112.00 ft x 32.00 ft (normal load) 283.66 m / 283.46 m x 34.14 m x 9.75 m Armament: 4 - 17.00" / 432 mm guns in single mounts, 2,456.50lbs / 1,114.25kg shells, 1921 Model Breech loading guns in turrets (on barbettes) on centreline ends, evenly spread, all raised mounts - superfiring 16 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1921 Model Quick firing guns in deck mounts on side ends, evenly spread, all raised mounts - superfiring Weight of broadside 10,338 lbs / 4,689 kg Shells per gun, main battery: 75 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 4.00" / 102 mm 425.00 ft / 129.54 m 16.00 ft / 4.88 m Ends: Unarmoured Main Belt covers 70 % of normal length Main belt does not fully cover magazines and engineering spaces - Torpedo Bulkhead: 1.00" / 25 mm 425.00 ft / 129.54 m 27.00 ft / 8.23 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 8.00" / 203 mm 5.00" / 127 mm 8.00" / 203 mm 2nd: 2.00" / 51 mm - - - Armour deck: 1.50" / 38 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 6 shafts, 324,033 shp / 241,728 Kw = 38.00 kts Range 3,600nm at 15.00 kts Bunker at max displacement = 2,381 tons Complement: 1,406 - 1,828 Cost: £10.050 million / $40.200 million Distribution of weights at normal displacement: Armament: 1,292 tons, 3.3 % Armour: 5,342 tons, 13.5 % - Belts: 1,229 tons, 3.1 % - Torpedo bulkhead: 425 tons, 1.1 % - Armament: 1,890 tons, 4.8 % - Armour Deck: 1,798 tons, 4.5 % - Conning Tower: 0 tons, 0.0 % Machinery: 11,158 tons, 28.1 % Hull, fittings & equipment: 19,367 tons, 48.8 % Fuel, ammunition & stores: 2,553 tons, 6.4 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 38,780 lbs / 17,590 Kg = 15.8 x 17.0 " / 432 mm shells or 4.2 torpedoes Stability (Unstable if below 1.00): 1.15 Metacentric height 7.7 ft / 2.4 m Roll period: 16.9 seconds Steadiness - As gun platform (Average = 50 %): 62 % - Recoil effect (Restricted arc if above 1.00): 0.49 Seaboat quality (Average = 1.00): 1.13 Hull form characteristics: Hull has rise forward of midbreak Block coefficient: 0.417 Length to Beam Ratio: 8.30 : 1 'Natural speed' for length: 30.50 kts Power going to wave formation at top speed: 53 % Trim (Max stability = 0, Max steadiness = 100): 55 Bow angle (Positive = bow angles forward): 1.00 degrees Stern overhang: 0.00 ft / 0.00 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 37.00 ft / 11.28 m - Forecastle (20 %): 35.00 ft / 10.67 m - Mid (47 %): 35.00 ft / 10.67 m (27.00 ft / 8.23 m aft of break) - Quarterdeck (15 %): 27.00 ft / 8.23 m - Stern: 0.00 ft / 0.00 m - Average freeboard: 28.90 ft / 8.81 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 140.2 % - Above water (accommodation/working, high = better): 266.2 % Waterplane Area: 64,803 Square feet or 6,020 Square metres Displacement factor (Displacement / loading): 105 % Structure weight / hull surface area: 204 lbs/sq ft or 996 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.97 - Longitudinal: 1.32 - Overall: 1.00 Hull space for machinery, storage, compartmentation is cramped Room for accommodation and workspaces is excellent
Amazon Ad
Thursday, January 13, 2005
The bloated, reduced capability "Super Fast Battlecruiser"
In order to get acceptable seakeeping ability, I had to greatly lengthen the "Super Fast Battlecruiser", give it greater beam, and reduce speed to 37 knots (still quite fast, but not like I wanted). I also increased the freeboard, and slightly lengthed the forecastle.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment