Ger/CB/1912, Germany Battlecruiser laid down 1912 (Engine 1917) Displacement: 26,947 t light; 27,966 t standard; 30,305 t normal; 32,176 t full load Dimensions: Length overall / water x beam x draught 700.00 ft / 700.00 ft x 95.00 ft x 29.00 ft (normal load) 213.36 m / 213.36 m x 28.96 m x 8.84 m Armament: 8 - 12.20" / 310 mm guns (4x2 guns), 944.00lbs / 428.19kg shells, 1912 Model Breech loading guns in turrets (on barbettes) on centreline ends, evenly spread 14 - 6.00" / 152 mm guns in single mounts, 106.00lbs / 48.08kg shells, 1912 Model Quick firing guns in casemate mounts on side, evenly spread Weight of broadside 9,036 lbs / 4,099 kg Shells per gun, main battery: 80 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 11.0" / 279 mm 460.00 ft / 140.21 m 17.00 ft / 5.18 m Ends: 5.00" / 127 mm 240.00 ft / 73.15 m 17.00 ft / 5.18 m Main Belt covers 101 % of normal length - Torpedo Bulkhead: 2.00" / 51 mm 460.00 ft / 140.21 m 26.00 ft / 7.92 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 12.0" / 305 mm 7.00" / 178 mm 11.0" / 279 mm 2nd: 4.00" / 102 mm 4.00" / 102 mm 4.00" / 102 mm - Armour deck: 3.00" / 76 mm, Conning tower: 11.00" / 279 mm Machinery: Oil fired boilers, steam turbines, Direct drive, 4 shafts, 112,517 shp / 83,937 Kw = 29.00 kts Range 7,500nm at 15.00 kts Bunker at max displacement = 4,211 tons Complement: 1,147 - 1,492 Cost: £2.442 million / $9.768 million Distribution of weights at normal displacement: Armament: 1,097 tons, 3.6 % Armour: 10,464 tons, 34.5 % - Belts: 4,442 tons, 14.7 % - Torpedo bulkhead: 885 tons, 2.9 % - Armament: 2,330 tons, 7.7 % - Armour Deck: 2,576 tons, 8.5 % - Conning Tower: 230 tons, 0.8 % Machinery: 4,125 tons, 13.6 % Hull, fittings & equipment: 11,262 tons, 37.2 % Fuel, ammunition & stores: 3,358 tons, 11.1 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 48,788 lbs / 22,130 Kg = 53.7 x 12.2 " / 310 mm shells or 7.2 torpedoes Stability (Unstable if below 1.00): 1.18 Metacentric height 6.3 ft / 1.9 m Roll period: 15.9 seconds Steadiness - As gun platform (Average = 50 %): 68 % - Recoil effect (Restricted arc if above 1.00): 0.50 Seaboat quality (Average = 1.00): 1.36 Hull form characteristics: Hull has raised forecastle, rise forward of midbreak, raised quarterdeck Block coefficient: 0.550 Length to Beam Ratio: 7.37 : 1 'Natural speed' for length: 26.46 kts Power going to wave formation at top speed: 53 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 0.00 degrees Stern overhang: -2.00 ft / -0.61 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 30.00 ft / 9.14 m - Forecastle (20 %): 28.00 ft / 8.53 m (27.00 ft / 8.23 m aft of break) - Mid (50 %): 26.00 ft / 7.92 m (25.00 ft / 7.62 m aft of break) - Quarterdeck (15 %): 26.00 ft / 7.92 m (25.00 ft / 7.62 m before break) - Stern: 27.00 ft / 8.23 m - Average freeboard: 26.44 ft / 8.06 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 90.8 % - Above water (accommodation/working, high = better): 198.0 % Waterplane Area: 46,410 Square feet or 4,312 Square metres Displacement factor (Displacement / loading): 110 % Structure weight / hull surface area: 163 lbs/sq ft or 797 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.95 - Longitudinal: 1.58 - Overall: 1.00 Hull space for machinery, storage, compartmentation is adequate Room for accommodation and workspaces is excellent Good seaboat, rides out heavy weather easily
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Friday, July 01, 2005
A comparable German battlecruiser for 1912
The Ger/CB/1912 is the battlecruiser analog to the fast battleship design for 1912. They both are flush-decked and have twin stacks with funnel casings. The armament for the battlecruiser is identical: 8-12.2in BLR and 14-6in QF guns. Admittedly, they both "cheat" by using higher power output machinery. This is the Springsharp report:
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