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
This is a forum for discussion of topics relating to the Dreadnought era, prior to the ascendency of naval aviation. We will be discussing history, ship design, and naval wargaming.
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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