Ger/BB/1921 Fast Battleship, Germany Battleship laid down 1921 Displacement: 58,908 t light; 61,610 t standard; 65,728 t normal; 69,022 t full load Dimensions: Length overall / water x beam x draught 866.19 ft / 865.00 ft x 125.00 ft x 36.00 ft (normal load) 264.01 m / 263.65 m x 38.10 m x 10.97 m Armament: 9 - 18.00" / 457 mm guns (3x3 guns), 2,916.00lbs / 1,322.68kg shells, 1921 Model Breech loading guns in turrets (on barbettes) on centreline ends, majority forward, all raised mounts - superfiring 20 - 5.00" / 127 mm guns (2x10 guns), 62.50lbs / 28.35kg shells, 1921 Model Quick firing guns in deck mounts with hoists on side, evenly spread, all raised mounts Weight of broadside 27,494 lbs / 12,471 kg Shells per gun, main battery: 90 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 16.0" / 406 mm 562.00 ft / 171.30 m 17.00 ft / 5.18 m Ends: Unarmoured Main Belt covers 100 % of normal length - Torpedo Bulkhead: 2.00" / 51 mm 562.00 ft / 171.30 m 31.00 ft / 9.45 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 16.0" / 406 mm 9.00" / 229 mm 14.0" / 356 mm 2nd: 2.00" / 51 mm - - - Armour deck: 5.00" / 127 mm, Conning tower: 12.00" / 305 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 4 shafts, 170,613 shp / 127,278 Kw = 30.00 kts Range 9,600nm at 15.00 kts Bunker at max displacement = 7,413 tons Complement: 2,052 - 2,668 Cost: £14.690 million / $58.761 million Distribution of weights at normal displacement: Armament: 3,437 tons, 5.2 % Armour: 21,199 tons, 32.3 % - Belts: 6,629 tons, 10.1 % - Torpedo bulkhead: 1,289 tons, 2.0 % - Armament: 5,301 tons, 8.1 % - Armour Deck: 7,558 tons, 11.5 % - Conning Tower: 421 tons, 0.6 % Machinery: 5,875 tons, 8.9 % Hull, fittings & equipment: 28,397 tons, 43.2 % Fuel, ammunition & stores: 6,820 tons, 10.4 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 97,048 lbs / 44,020 Kg = 33.3 x 18.0 " / 457 mm shells or 14.7 torpedoes Stability (Unstable if below 1.00): 1.04 Metacentric height 7.5 ft / 2.3 m Roll period: 19.1 seconds Steadiness - As gun platform (Average = 50 %): 62 % - Recoil effect (Restricted arc if above 1.00): 0.83 Seaboat quality (Average = 1.00): 1.23 Hull form characteristics: Hull has a flush deck and transom stern Block coefficient: 0.591 Length to Beam Ratio: 6.92 : 1 'Natural speed' for length: 34.24 kts Power going to wave formation at top speed: 51 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 2.00 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 %): 29.00 ft / 8.84 m - Mid (0 %): 28.00 ft / 8.53 m - Quarterdeck (15 %): 28.00 ft / 8.53 m - Stern: 28.00 ft / 8.53 m - Average freeboard: 28.50 ft / 8.69 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 81.5 % - Above water (accommodation/working, high = better): 211.2 % Waterplane Area: 81,713 Square feet or 7,591 Square metres Displacement factor (Displacement / loading): 109 % Structure weight / hull surface area: 257 lbs/sq ft or 1,253 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.95 - Longitudinal: 1.52 - Overall: 1.00 Hull space for machinery, storage, compartmentation is excellent Room for accommodation and workspaces is excellent Good seaboat, rides out heavy weather easily
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Saturday, January 15, 2005
I thought I would try a German fast battleship from a sketch I had done way back
I have a sketch of a large, German fast battleship (30 knots) that I did way back. This is a ship with 9-18in and 20-5in guns. I had hoped to be able to do that on 50,000 tons, but with Springsharp, I had to go to 65,728 tons, normal displacement, to get a good ship. I had to guess at dimensions, as I don't see any on the drawing, itself. The ship has a vaguely Italian look with two funnels and a tower foremast with bridge structure around it. There is a pole foremast and a low pole mainmast.
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