Ger/BB/1915-1916, Enter country Enter ship type laid down 1916 (Engine 1927) Displacement: 72,261 t light; 75,702 t standard; 79,500 t normal; 82,539 t full load Dimensions: Length overall / water x beam x draught 925.50 ft / 920.00 ft x 125.00 ft x 33.00 ft (normal load) 282.09 m / 280.42 m x 38.10 m x 10.06 m Armament: 12 - 18.00" / 457 mm guns (4x3 guns), 2,916.00lbs / 1,322.68kg shells, 1916 Model Breech loading guns in turrets (on barbettes) on centreline ends, evenly spread, 2 raised mounts - superfiring 16 - 6.00" / 152 mm guns (8x2 guns), 108.00lbs / 48.99kg shells, 1916 Model Quick firing guns in turrets (on barbettes) on side, all amidships, 4 raised mounts - superfiring Weight of broadside 36,720 lbs / 16,656 kg Shells per gun, main battery: 90 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 17.0" / 432 mm 500.00 ft / 152.40 m 17.00 ft / 5.18 m Ends: Unarmoured Main Belt covers 84 % of normal length - Torpedo Bulkhead: 6.00" / 152 mm 500.00 ft / 152.40 m 33.00 ft / 10.06 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 17.0" / 432 mm 10.0" / 254 mm 17.0" / 432 mm 2nd: 6.00" / 152 mm 6.00" / 152 mm 6.00" / 152 mm - Armour deck: 6.00" / 152 mm, Conning tower: 17.00" / 432 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 4 shafts, 200,864 shp / 149,844 Kw = 29.00 kts Range 7,500nm at 15.00 kts Bunker at max displacement = 6,837 tons Complement: 2,366 - 3,077 Cost: £11.900 million / $47.601 million Distribution of weights at normal displacement: Armament: 4,590 tons, 5.8 % Armour: 29,824 tons, 37.5 % - Belts: 6,502 tons, 8.2 % - Torpedo bulkhead: 3,663 tons, 4.6 % - Armament: 8,446 tons, 10.6 % - Armour Deck: 10,536 tons, 13.3 % - Conning Tower: 677 tons, 0.9 % Machinery: 6,340 tons, 8.0 % Hull, fittings & equipment: 31,507 tons, 39.6 % Fuel, ammunition & stores: 7,239 tons, 9.1 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 114,544 lbs / 51,956 Kg = 39.3 x 18.0 " / 457 mm shells or 20.5 torpedoes Stability (Unstable if below 1.00): 1.08 Metacentric height 8.1 ft / 2.5 m Roll period: 18.4 seconds Steadiness - As gun platform (Average = 50 %): 60 % - Recoil effect (Restricted arc if above 1.00): 0.84 Seaboat quality (Average = 1.00): 1.19 Hull form characteristics: Hull has a flush deck Block coefficient: 0.733 Length to Beam Ratio: 7.36 : 1 'Natural speed' for length: 30.33 kts Power going to wave formation at top speed: 49 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 5.00 degrees Stern overhang: 2.00 ft / 0.61 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 40.00 ft / 12.19 m - Forecastle (20 %): 27.00 ft / 8.23 m - 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: 28.04 ft / 8.55 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 82.6 % - Above water (accommodation/working, high = better): 206.3 % Waterplane Area: 94,918 Square feet or 8,818 Square metres Displacement factor (Displacement / loading): 100 % Structure weight / hull surface area: 250 lbs/sq ft or 1,220 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.99 - Longitudinal: 1.10 - Overall: 1.00 Hull space for machinery, storage, compartmentation is excellent Room for accommodation and workspaces is excellent
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Wednesday, July 12, 2006
The Ger/BB/1915-1916 design
All I have on the Red Book page for this is an inboard profile. I used a little creative license to supply the other specifications. I did that and what would make Springsharp happy. The pencil drawing shows a 920ft long, flush-decked hull. The armament is four main turrets, with two superfiring. The secondary armament is clearly meant to be 16-6in QF guns. This is the Springsharp report:
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