Bismarck light, Deutschland Battleship laid down 1936
Displacement:
42,044 t light; 44,150 t standard; 45,934 t normal; 47,361 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(860.87 ft / 831.69 ft) x 98.43 ft (Bulges 104.99 ft) x (30.18 / 30.98 ft)
(262.39 m / 253.50 m) x 30.00 m (Bulges 32.00 m) x (9.20 / 9.44 m)
Armament:
8 - 15.08" / 383 mm 48.9 cal guns - 1,764.00lbs / 800.14kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1936 Model
4 x 2-gun mounts on centreline ends, evenly spread
2 raised mounts - superfiring
8 - 4.13" / 105 mm 65.0 cal guns - 39.16lbs / 17.76kg shells, 400 per gun
Breech loading guns in deck and hoist mounts, 1928 Model
4 x 2-gun mounts on side ends, evenly spread
4 raised mounts
16 - 4.13" / 105 mm 65.0 cal guns - 39.16lbs / 17.76kg shells, 400 per gun
Anti-air guns in deck and hoist mounts, 1933 Model
8 x 2-gun mounts on side ends, evenly spread
16 - 1.46" / 37.0 mm 93.0 cal guns - 1.80lbs / 0.82kg shells, 2,000 per gun
Anti-air guns in deck mounts, 1930 Model
8 x Twin mounts on sides, evenly spread
8 raised mounts
16 - 0.79" / 20.0 mm 65.0 cal guns - 0.27lbs / 0.12kg shells, 2,000 per gun
Anti-air guns in deck mounts, 1930 Model
4 x Twin mounts on sides, evenly spread
4 raised mounts
4 x Twin mounts on centreline, aft deck forward
4 raised mounts
Weight of broadside 15,085 lbs / 6,842 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.8" / 300 mm 557.74 ft / 170.00 m 17.72 ft / 5.40 m
Ends: 2.76" / 70 mm 196.85 ft / 60.00 m 9.84 ft / 3.00 m
77.10 ft / 23.50 m Unarmoured ends
Upper: 3.94" / 100 mm 557.74 ft / 170.00 m 14.76 ft / 4.50 m
Main Belt covers 103 % of normal length
- Torpedo Bulkhead:
1.69" / 43 mm 492.13 ft / 150.00 m 45.93 ft / 14.00 m
- Hull Bulges:
0.39" / 10 mm 492.13 ft / 150.00 m 19.69 ft / 6.00 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.2" / 360 mm 7.87" / 200 mm 13.4" / 340 mm
2nd: 0.79" / 20 mm 0.79" / 20 mm 0.79" / 20 mm
3rd: 0.79" / 20 mm 0.79" / 20 mm 0.79" / 20 mm
- Protected deck - multiple decks: 5.24" / 133 mm For and Aft decks
Forecastle: 0.79" / 20 mm Quarter deck: 4.72" / 120 mm
- Conning towers: Forward 13.39" / 340 mm, Aft 0.00" / 0 mm
Machinery:
Diesel Internal combustion motors,
Geared drive, 3 shafts, 139,785 shp / 104,280 Kw = 30.00 kts
Range 8,000nm at 12.12 kts [19kts diesel]
Bunker at max displacement = 3,212 tons
Complement:
1,568 - 2,039
Cost:
£19.082 million / $76.327 million
Distribution of weights at normal displacement:
Armament: 3,563 tons, 7.8 %
Armour: 17,264 tons, 37.6 %
- Belts: 6,469 tons, 14.1 %
- Torpedo bulkhead: 1,416 tons, 3.1 %
- Bulges: 141 tons, 0.3 %
- Armament: 3,102 tons, 6.8 %
- Armour Deck: 5,766 tons, 12.6 %
- Conning Tower: 370 tons, 0.8 %
Machinery: 3,922 tons, 8.5 %
Hull, fittings & equipment: 16,092 tons, 35.0 %
Fuel, ammunition & stores: 3,889 tons, 8.5 %
Miscellaneous weights: 1,203 tons, 2.6 %
- Hull below water: 1,150 tons
- Bulge void weights: 3 tons
- Above deck: 50 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
68,461 lbs / 31,053 Kg = 39.9 x 15.1 " / 383 mm shells or 11.5 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 6.3 ft / 1.9 m
Roll period: 17.6 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.47
Seaboat quality (Average = 1.00): 1.00
Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and large transom stern
Block coefficient (normal/deep): 0.610 / 0.613
Length to Beam Ratio: 7.92 : 1
'Natural speed' for length: 33.13 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 32.00 degrees
Stern overhang: 9.68 ft / 2.95 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 16.00 %, 31.20 ft / 9.51 m, 22.57 ft / 6.88 m
- Forward deck: 34.00 %, 22.57 ft / 6.88 m, 18.08 ft / 5.51 m
- Aft deck: 37.00 %, 18.08 ft / 5.51 m, 18.73 ft / 5.71 m
- Quarter deck: 13.00 %, 18.73 ft / 5.71 m, 21.36 ft / 6.51 m
- Average freeboard: 20.49 ft / 6.25 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.1 %
- Above water (accommodation/working, high = better): 147.8 %
Waterplane Area: 62,997 Square feet or 5,853 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 206 lbs/sq ft or 1,006 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.09
- Longitudinal: 0.97
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Modified Bismarck made lighter by replacing the propulsion system with the more compact V 12 Diesels. The three 30 x 10m ; 1700t V12 diesel propulsion units are installed to generate the144,000hp needed to reach 30 kts deep and 150,000 hp forced to reach 30.8 kts standard displacement.
This allows for a narrower hull also reducing the armor mass from 19,500 tons to 17,300tons. However this also requires deleting the 6`inch secondaries and replace with twin 4 inch flaks.