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.