Ger/BB/1909, Germany Battleship laid down 1909 Displacement: 26,686 t light; 27,692 t standard; 30,760 t normal; 33,214 t full load Dimensions: Length overall / water x beam x draught 645.00 ft / 645.00 ft x 106.00 ft x 30.00 ft (normal load) 196.60 m / 196.60 m x 32.31 m x 9.14 m Armament: 9 - 12.00" / 305 mm guns (3x3 guns), 864.00lbs / 391.90kg shells, 1909 Model Breech loading guns in turrets (on barbettes) on centreline ends, majority forward, 1 raised mount - superfiring 8 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1909 Model Quick firing guns in casemate mounts on side, all amidships Weight of broadside 8,640 lbs / 3,919 kg Shells per gun, main battery: 80 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 14.0" / 356 mm 350.00 ft / 106.68 m 17.00 ft / 5.18 m Ends: Unarmoured Main Belt covers 83 % of normal length - Torpedo Bulkhead: 3.00" / 76 mm 350.00 ft / 106.68 m 29.00 ft / 8.84 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 14.0" / 356 mm 9.00" / 229 mm 14.0" / 356 mm 2nd: 6.00" / 152 mm 6.00" / 152 mm 6.00" / 152 mm - Armour deck: 4.50" / 114 mm, Conning tower: 14.00" / 356 mm Machinery: Oil fired boilers, steam turbines, Direct drive, 4 shafts, 47,943 shp / 35,765 Kw = 23.00 kts Range 7,000nm at 15.00 kts Bunker at max displacement = 5,522 tons Complement: 1,160 - 1,509 Cost: £2.146 million / $8.585 million Distribution of weights at normal displacement: Armament: 1,080 tons, 3.5 % Armour: 11,879 tons, 38.6 % - Belts: 3,813 tons, 12.4 % - Torpedo bulkhead: 1,127 tons, 3.7 % - Armament: 2,764 tons, 9.0 % - Armour Deck: 3,880 tons, 12.6 % - Conning Tower: 296 tons, 1.0 % Machinery: 2,179 tons, 7.1 % Hull, fittings & equipment: 11,548 tons, 37.5 % Fuel, ammunition & stores: 4,074 tons, 13.2 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 69,229 lbs / 31,402 Kg = 80.1 x 12.0 " / 305 mm shells or 14.4 torpedoes Stability (Unstable if below 1.00): 1.15 Metacentric height 7.1 ft / 2.2 m Roll period: 16.7 seconds Steadiness - As gun platform (Average = 50 %): 98 % - Recoil effect (Restricted arc if above 1.00): 0.50 Seaboat quality (Average = 1.00): 1.96 Hull form characteristics: Hull has rise forward of midbreak Block coefficient: 0.525 Length to Beam Ratio: 6.08 : 1 'Natural speed' for length: 25.40 kts Power going to wave formation at top speed: 44 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): -2.00 degrees Stern overhang: -1.00 ft / -0.30 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 31.00 ft / 9.45 m - Forecastle (20 %): 28.00 ft / 8.53 m - Mid (63 %): 28.00 ft / 8.53 m (20.00 ft / 6.10 m aft of break) - Quarterdeck (15 %): 20.00 ft / 6.10 m - Stern: 20.00 ft / 6.10 m - Average freeboard: 25.28 ft / 7.71 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 61.6 % - Above water (accommodation/working, high = better): 193.6 % Waterplane Area: 46,609 Square feet or 4,330 Square metres Displacement factor (Displacement / loading): 124 % Structure weight / hull surface area: 175 lbs/sq ft or 853 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.93 - Longitudinal: 2.00 - Overall: 1.00 Hull space for machinery, storage, compartmentation is excellent Room for accommodation and workspaces is excellent Ship has slow, easy roll, a good, steady gun platform Excellent seaboat, comfortable, can fire her guns in the heaviest weather
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Thursday, September 15, 2005
The September 8, 2001 version of the Ger/BB/1909 design
The Ger/BB/1909 drawing from September 8, 2001 is not very inspired, but it does look distinctly like a WWI-era German battleship. Partly, the problem is that three triple 12in gun turrets dow't seem very appropriate for such a ship. This drawing has some specifications, so I needed to invent less for Springsharp. The design, as originally entered allowed for room for growth, so I increased the range and deck armor. This is the Springsharp report:
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