Ger/CB/1906 Original version greater displacement, Germany Battlecruiser laid down 1906 (Engine 1908) Displacement: 26,161 t light; 27,139 t standard; 29,759 t normal; 31,855 t full load Dimensions: Length (overall / waterline) x beam x draught (normal/deep) (805.00 ft / 800.00 ft) x 85.00 ft x (26.50 / 28.01 ft) (245.36 m / 243.84 m) x 25.91 m x (8.08 / 8.54 m) Armament: 8 - 12.00" / 305 mm 45.0 cal guns - 871.37lbs / 395.25kg shells, 90 per gun Breech loading guns in turret on barbette mounts, 1906 Model 4 x Twin mounts on centreline ends, evenly spread 2 raised mounts - superfiring Aft Main mounts separated by engine room 12 - 4.00" / 102 mm 50.0 cal guns - 33.88lbs / 15.37kg shells, 150 per gun Quick firing guns in deck and hoist mounts, 1906 Model 12 x Twin mounts on sides amidships Weight of broadside 7,378 lbs / 3,346 kg Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 4.00" / 102 mm 420.00 ft / 128.02 m 16.00 ft / 4.88 m Ends: Unarmoured Main Belt covers 81 % of normal length Main belt does not fully cover magazines and engineering spaces - Torpedo Bulkhead: 1.50" / 38 mm 420.00 ft / 128.02 m 25.60 ft / 7.80 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 6.00" / 152 mm 6.00" / 152 mm 6.00" / 152 mm 2nd: 3.00" / 76 mm 2.00" / 51 mm 3.00" / 76 mm - Armoured deck - single deck: 3.00" / 76 mm For and Aft decks Machinery: Oil fired boilers, steam turbines, Direct drive, 4 shafts, 173,722 shp / 129,596 Kw = 33.00 kts Range 5,600nm at 15.00 kts Bunker at max displacement = 4,716 tons Complement: 1,132 - 1,472 Cost: £2.838 million / $11.353 million Distribution of weights at normal displacement: Armament: 1,339 tons, 4.5 % Armour: 5,179 tons, 17.4 % - Belts: 1,158 tons, 3.9 % - Torpedo bulkhead: 597 tons, 2.0 % - Armament: 1,302 tons, 4.4 % - Armour Deck: 2,122 tons, 7.1 % Machinery: 8,774 tons, 29.5 % Hull, fittings & equipment: 10,869 tons, 36.5 % Fuel, ammunition & stores: 3,598 tons, 12.1 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 26,053 lbs / 11,817 Kg = 30.2 x 12.0 " / 305 mm shells or 2.9 torpedoes Stability (Unstable if below 1.00): 1.21 Metacentric height 5.6 ft / 1.7 m Roll period: 15.1 seconds Steadiness - As gun platform (Average = 50 %): 59 % - Recoil effect (Restricted arc if above 1.00): 0.61 Seaboat quality (Average = 1.00): 1.17 Hull form characteristics: Hull has rise forward of midbreak, a ram bow and a cruiser stern Block coefficient (normal/deep): 0.578 / 0.585 Length to Beam Ratio: 9.41 : 1 'Natural speed' for length: 28.28 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: -3.00 ft / -0.91 m Freeboard (% = length of deck as a percentage of waterline length): Fore end, Aft end - Forecastle: 25.00 %, 33.00 ft / 10.06 m, 27.00 ft / 8.23 m - Forward deck: 43.00 %, 27.00 ft / 8.23 m, 27.00 ft / 8.23 m - Aft deck: 17.00 %, 19.00 ft / 5.79 m, 19.00 ft / 5.79 m - Quarter deck: 15.00 %, 19.00 ft / 5.79 m, 21.00 ft / 6.40 m - Average freeboard: 25.19 ft / 7.68 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 152.4 % - Above water (accommodation/working, high = better): 202.8 % Waterplane Area: 48,720 Square feet or 4,526 Square metres Displacement factor (Displacement / loading): 101 % Structure weight / hull surface area: 155 lbs/sq ft or 757 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.99 - Longitudinal: 1.09 - Overall: 1.00 Hull space for machinery, storage, compartmentation is cramped Room for accommodation and workspaces is excellent
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Saturday, June 16, 2007
The Ger/CB/1906 with Springsharp 3.0b2 Beta
I was finally able to download Springsharp 3.0b2 Beta this evening. My first design was the Ger/CB/1906 original version, as the ship has a sharply inclined belt. That was about the only unique feature that I used from the new Springsharp. The Ger/CB/1906 was intended to be a 33 knot battlecruiser with a 4in belt and 3in deck. The turrets and barbettes are 6in. To make the design work, I had to use more displacement and higher power than intended. I had optimistically specified 120,000 SHP for a 25,000 ton ship to make 33 knots. This is the Springsharp report:
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