Ger/CB/1937 16.5in, Germany Battlecruiser laid down 1937
Displacement:
43,892 t light; 45,822 t standard; 47,593 t normal; 49,010 t full load
Dimensions: Length overall / water x beam x draught
857.57 ft / 854.00 ft x 118.00 ft x 30.00 ft (normal load)
261.39 m / 260.30 m x 35.97 m x 9.14 m
Armament:
9 - 16.50" / 419 mm guns (3x3 guns), 2,246.06lbs / 1,018.80kg shells, 1937 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
24 - 5.00" / 127 mm guns (12x2 guns), 62.50lbs / 28.35kg shells, 1937 Model
Dual purpose guns in turrets (on barbettes)
on side, all amidships
Weight of broadside 21,715 lbs / 9,850 kg
Shells per gun, main battery: 80
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.0" / 356 mm 555.00 ft / 169.16 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
- Torpedo Bulkhead:
2.00" / 51 mm 555.00 ft / 169.16 m 29.00 ft / 8.84 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 10.0" / 254 mm 14.0" / 356 mm
2nd: 5.00" / 127 mm 5.00" / 127 mm 5.00" / 127 mm
- Armour deck: 5.00" / 127 mm, Conning tower: 14.00" / 356 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 122,611 shp / 91,468 Kw = 28.00 kts
Range 5,200nm at 15.00 kts
Bunker at max displacement = 3,188 tons
Complement:
1,610 - 2,094
Cost:
£23.411 million / $93.644 million
Distribution of weights at normal displacement:
Armament: 2,714 tons, 5.7 %
Armour: 17,682 tons, 37.2 %
- Belts: 5,352 tons, 11.2 %
- Torpedo bulkhead: 1,191 tons, 2.5 %
- Armament: 4,232 tons, 8.9 %
- Armour Deck: 6,511 tons, 13.7 %
- Conning Tower: 396 tons, 0.8 %
Machinery: 3,398 tons, 7.1 %
Hull, fittings & equipment: 20,097 tons, 42.2 %
Fuel, ammunition & stores: 3,701 tons, 7.8 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
72,078 lbs / 32,694 Kg = 32.1 x 16.5 " / 419 mm shells or 12.3 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 8.7 ft / 2.7 m
Roll period: 16.8 seconds
Steadiness - As gun platform (Average = 50 %): 58 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.16
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.551
Length to Beam Ratio: 7.24 : 1
'Natural speed' for length: 29.22 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 3.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 20.80 ft / 6.34 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.4 %
- Above water (accommodation/working, high = better): 166.6 %
Waterplane Area: 70,394 Square feet or 6,540 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 220 lbs/sq ft or 1,072 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.00
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
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Friday, October 07, 2005
The "High end" Ger/BB/1937 with 16.5in guns
This version of the Ger/BB/1937 series seems more appropriately designated as a battleship than battlecruiser. The armament is now 9-16.5in/45 BLR and 24-5in DP guns. There ought to be a light AA armament, but there is not. The speed is the modest 28 knots. The normal displacement is 47,593 tons with dimensions of 854ft x 118ft x 30ft. The draft being so shallow creates problems with composite strength in Springsharp. I would probably have to say that the design is over-armored. This is the Springsharp report:
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