Ger/CB/1943, Germany Battlecruiser laid down 1943
Displacement:
118,293 t light; 123,122 t standard; 130,000 t normal; 135,502 t full load
Dimensions: Length overall / water x beam x draught
1,304.66 ft / 1,300.00 ft x 150.00 ft x 41.00 ft (normal load)
397.66 m / 396.24 m x 45.72 m x 12.50 m
Armament:
9 - 21.00" / 533 mm guns (3x3 guns), 4,630.50lbs / 2,100.36kg shells, 1943 Model
Breech loading guns in turrets (on barbettes)
on side ends, majority forward, 1 raised mount - superfiring
16 - 6.00" / 152 mm guns (8x2 guns), 108.00lbs / 48.99kg shells, 1943 Model
Quick firing guns in turrets (on barbettes)
on side, all amidships
16 - 4.00" / 102 mm guns (8x2 guns), 32.00lbs / 14.51kg shells, 1943 Model
Anti-aircraft guns in turrets (on barbettes)
on side ends, evenly spread, all raised mounts - superfiring
72 - 1.57" / 40.0 mm guns (18x4 guns), 1.95lbs / 0.89kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 13 raised mounts
56 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 36 raised mounts
Weight of broadside 44,069 lbs / 19,989 kg
Shells per gun, main battery: 90
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.0" / 330 mm 850.00 ft / 259.08 m 17.00 ft / 5.18 m
Ends: Unarmoured
Main Belt covers 101 % of normal length
- Torpedo Bulkhead:
4.00" / 102 mm 850.00 ft / 259.08 m 37.00 ft / 11.28 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 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 - -
- Armour deck: 7.00" / 178 mm, Conning tower: 15.00" / 381 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 8 shafts, 575,246 shp / 429,134 Kw = 37.00 kts
Range 8,000nm at 18.00 kts
Bunker at max displacement = 12,380 tons
Complement:
3,422 - 4,450
Cost:
£71.001 million / $284.004 million
Distribution of weights at normal displacement:
Armament: 5,509 tons, 4.2 %
Armour: 38,596 tons, 29.7 %
- Belts: 7,940 tons, 6.1 %
- Torpedo bulkhead: 4,655 tons, 3.6 %
- Armament: 7,231 tons, 5.6 %
- Armour Deck: 17,942 tons, 13.8 %
- Conning Tower: 829 tons, 0.6 %
Machinery: 14,857 tons, 11.4 %
Hull, fittings & equipment: 59,331 tons, 45.6 %
Fuel, ammunition & stores: 11,707 tons, 9.0 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
194,150 lbs / 88,065 Kg = 41.9 x 21.0 " / 533 mm shells or 34.9 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 13.7 ft / 4.2 m
Roll period: 17.0 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.11
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.569
Length to Beam Ratio: 8.67 : 1
'Natural speed' for length: 36.06 kts
Power going to wave formation at top speed: 48 %
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 tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.9 %
- Above water (accommodation/working, high = better): 215.9 %
Waterplane Area: 138,550 Square feet or 12,872 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 320 lbs/sq ft or 1,564 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.21
- Longitudinal: 0.94
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
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.
Tuesday, October 18, 2005
The extravagantly large and fast version of the Ger/CB/1943
This version of the design for the Ger/CB/1943 matches my current thoughts about what such a ship should be like. The size is somewhat larger, so that a maximum speed of 37 knots can be achieved, along with an 18 knot cruising speed for a range of 8,000 nm. The belt is a modest 13in. I prefer twin turrets for the secondary and tertiary batteries, so the armament is 9-21in, 16-6in QF, 16-4in AA, 72-40mm AA quad, and 56-20mm AA single. This is the Springsharp report:
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