H44, Germany Battleship laid down 1942 (Engine 1945) Displacement: 116,674 t light; 122,502 t standard; 141,444 t normal; 156,598 t full load Dimensions: Length (overall / waterline) x beam x draught (normal/deep) (1,155.56 ft / 1,133.00 ft) x 169.00 ft x (41.50 / 45.21 ft) (352.21 m / 345.34 m) x 51.51 m x (12.65 / 13.78 m) Armament: 8 - 20.00" / 508 mm 50.0 cal guns - 4,250.00lbs / 1,927.77kg shells, 150 per gun Breech loading guns in turret on barbette mounts , 1942 Model 4 x Twin mounts on centreline ends, evenly spread 2 raised mounts - superfiring 12 - 5.91" / 150 mm 55.0 cal guns - 112.00lbs / 50.80kg shells, 150 per gun Quick firing guns in turret on barbette mounts , 1942 Model 6 x Twin mounts on sides, evenly spread 16 - 4.13" / 105 mm 55.0 cal guns - 38.13lbs / 17.29kg shells, 150 per gun Anti-air guns in deck and hoist mounts , 1942 Model 8 x Twin mounts on sides, evenly spread 8 raised mounts 16 - 1.46" / 37.0 mm 60.0 cal guns - 1.69lbs / 0.77kg shells, 150 per gun Anti-air guns in deck mounts , 1942 Model 8 x Twin mounts on sides, evenly spread 8 raised mounts 40 - 0.79" / 20.0 mm 60.0 cal guns - 0.27lbs / 0.12kg shells, 150 per gun Anti-air guns in deck mounts , 1942 Model 20 x Single mounts on sides, evenly spread 20 raised mounts Weight of broadside 35,992 lbs / 35,992 kg Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 15.0" / 381 mm 640.00 ft / 195.07 m 16.00 ft / 4.88 m Ends: Unarmoured Main Belt covers 87 % of normal length - Torpedo Bulkhead: 8.00" / 203 mm 640.00 ft / 195.07 m 41.50 ft / 12.65 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 15.0" / 381 mm 11.0" / 279 mm 15.0" / 381 mm 2nd: 6.00" / 152 mm 4.00" / 102 mm 6.00" / 152 mm 3rd: 1.00" / 25 mm - 1.00" / 25 mm - Armour deck: 13.00" / 330 mm, Conning tower: 15.00" / 381 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 4 shafts, 289,757 shp / 216,159 Kw = 29.80 kts Range 20,000nm at 19.00 kts Bunker at max displacement = 34,096 tons Complement: 3,646 - 4,740 Cost: £56.276 million / $225.104 million Distribution of weights at normal displacement: Armament: 6,093 tons, 4.3 % Armour: 57,458 tons, 40.6 % - Belts: 6,913 tons, 4.9 % - Torpedo bulkhead: 7,862 tons, 5.6 % - Armament: 7,397 tons, 5.2 % - Armour Deck: 34,409 tons, 24.3 % - Conning Tower: 877 tons, 0.6 % Machinery: 7,317 tons, 5.2 % Hull, fittings & equipment: 47,451 tons, 33.5 % Fuel, ammunition & stores: 24,771 tons, 17.5 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 365,705 lbs / 165,881 Kg = 91.4 x 20.0 " / 508 mm shells or 127.3 torpedoes Stability (Unstable if below 1.00): 1.42 Metacentric height 20.2 ft / 6.2 m Roll period: 15.8 seconds Steadiness - As gun platform (Average = 50 %): 74 % - Recoil effect (Restricted arc if above 1.00): 0.26 Seaboat quality (Average = 1.00): 1.48 Hull form characteristics: Hull has low forecastle, a normal bow and a cruiser stern Block coefficient (normal/deep): 0.623 / 0.633 Length to Beam Ratio: 6.70 : 1 'Natural speed' for length: 33.66 kts Power going to wave formation at top speed: 45 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 20.00 degrees Stern overhang: 8.00 ft / 2.44 m Freeboard (% = length of deck as a percentage of waterline length): Fore end, Aft end - Forecastle: 20.00 %, 40.00 ft / 12.19 m, 30.00 ft / 9.14 m - Forward deck: 30.00 %, 32.00 ft / 9.75 m, 28.00 ft / 8.53 m - Aft deck: 35.00 %, 28.00 ft / 8.53 m, 28.00 ft / 8.53 m - Quarter deck: 15.00 %, 28.00 ft / 8.53 m, 28.00 ft / 8.53 m - Average freeboard: 29.80 ft / 9.08 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 48.0 % - Above water (accommodation/working, high = better): 216.2 % Waterplane Area: 143,075 Square feet or 13,292 Square metres Displacement factor (Displacement / loading): 131 % Structure weight / hull surface area: 259 lbs/sq ft or 1,266 Kg/sq metre Hull strength (Relative): - Cross-sectional: 1.00 - Longitudinal: 1.02 - 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 Good seaboat, rides out heavy weather easily
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Friday, April 27, 2007
I had to go large with the German H44 class
To make the German H44 design study work in Springsharp 3.0b1 Beta, I had to "go large". The displacment had to be greater to achieve adequate structural strength. I got the specifications from the Wikipedia page. I used the drawing at the German Navy website. This is the Springsharp report:
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