Ger/CB/1942, Germany Battlecruiser laid down 1942
Displacement:
106,793 t light; 111,431 t standard; 120,000 t normal; 126,856 t full load
Dimensions: Length overall / water x beam x draught
1,184.66 ft / 1,180.00 ft x 147.00 ft x 37.00 ft (normal load)
361.08 m / 359.66 m x 44.81 m x 11.28 m
Armament:
9 - 21.00" / 533 mm guns (3x3 guns), 4,630.50lbs / 2,100.36kg shells, 1942 Model
Breech loading guns in turrets (on barbettes)
on side ends, majority forward, 1 raised mount - superfiring
18 - 6.00" / 152 mm guns (6x3 guns), 108.00lbs / 48.99kg shells, 1942 Model
Quick firing guns in turrets (on barbettes)
on side, all amidships
18 - 4.00" / 102 mm guns (6x3 guns), 32.00lbs / 14.51kg shells, 1942 Model
Anti-aircraft guns in turrets (on barbettes)
on side ends, evenly spread, all raised mounts - superfiring
28 - 1.57" / 40.0 mm guns (7x4 guns), 1.95lbs / 0.89kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised mounts
6 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 44,251 lbs / 20,072 kg
Shells per gun, main battery: 90
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 780.00 ft / 237.74 m 17.00 ft / 5.18 m
Ends: Unarmoured
Main Belt covers 102 % of normal length
- Torpedo Bulkhead:
4.00" / 102 mm 780.00 ft / 237.74 m 36.00 ft / 10.97 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16.0" / 406 mm 11.0" / 279 mm 16.0" / 406 mm
2nd: 6.00" / 152 mm 6.00" / 152 mm 6.00" / 152 mm
3rd: 1.00" / 25 mm 1.00" / 25 mm 1.00" / 25 mm
4th: 1.00" / 25 mm - -
5th: 1.00" / 25 mm - -
- Armour deck: 7.00" / 178 mm, Conning tower: 16.00" / 406 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 8 shafts, 478,256 shp / 356,779 Kw = 35.00 kts
Range 10,500nm at 18.00 kts
Bunker at max displacement = 15,425 tons
Complement:
3,222 - 4,190
Cost:
£64.484 million / $257.935 million
Distribution of weights at normal displacement:
Armament: 5,531 tons, 4.6 %
Armour: 36,529 tons, 30.4 %
- Belts: 6,790 tons, 5.7 %
- Torpedo bulkhead: 4,156 tons, 3.5 %
- Armament: 7,467 tons, 6.2 %
- Armour Deck: 17,278 tons, 14.4 %
- Conning Tower: 839 tons, 0.7 %
Machinery: 12,494 tons, 10.4 %
Hull, fittings & equipment: 52,239 tons, 43.5 %
Fuel, ammunition & stores: 13,207 tons, 11.0 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
184,951 lbs / 83,892 Kg = 39.9 x 21.0 " / 533 mm shells or 33.6 torpedoes
Stability (Unstable if below 1.00): 1.26
Metacentric height 13.5 ft / 4.1 m
Roll period: 16.8 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 1.05
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.654
Length to Beam Ratio: 8.03 : 1
'Natural speed' for length: 34.35 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 4.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 38.00 ft / 11.58 m
- Forecastle (20 %): 28.00 ft / 8.53 m
- Mid (50 %): 28.00 ft / 8.53 m
- Quarterdeck (15 %): 28.00 ft / 8.53 m
- Stern: 28.00 ft / 8.53 m
- Average freeboard: 28.80 ft / 8.78 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.5 %
- Above water (accommodation/working, high = better): 220.8 %
Waterplane Area: 133,418 Square feet or 12,395 Square metres
Displacement factor (Displacement / loading): 113 %
Structure weight / hull surface area: 301 lbs/sq ft or 1,468 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.15
- Longitudinal: 0.96
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
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Saturday, October 15, 2005
A 1942 German very large battlecruiser
I have a sketch and specification for a very large German battlecruiser. I date it as 1942. The specification originally gave the ship a 46ft-2in draft, which I have greatly reduced, as a large draft is too great of a problem. The basic specification is for a 35-knot ship of 120,000 tons normal displacement. The main armament is the usual 9-21in guns. In this case, the secondary armament is single-purpose, being 18-6in QF guns in six triple turrets. The heavy AA armament is 18-4in AA guns in triple mounts, as well. The light AA is substandard with only 28-40mm and 6-20mm. The belt is only 12in. The armament has 16in armor, however. This is the Springsharp report:
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