Ger/CB/1911, Germany Battlecruiser laid down 1911 (Engine 1927)
Displacement:
24,896 t light; 25,461 t standard; 28,250 t normal; 30,481 t full load
Dimensions: Length overall / water x beam x draught
751.00 ft / 750.00 ft x 100.00 ft x 30.10 ft (normal load)
228.90 m / 228.60 m x 30.48 m x 9.17 m
Armament:
6 - 12.00" / 305 mm guns (2x3 guns), 864.00lbs / 391.90kg shells, 1911 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount - superfiring
8 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1911 Model
Quick firing guns in deck mounts with hoists
on side, all forward, 2 raised mounts - superfiring
Weight of broadside 6,048 lbs / 2,743 kg
Shells per gun, main battery: 0
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 6.00" / 152 mm 540.00 ft / 164.59 m 17.00 ft / 5.18 m
Ends: Unarmoured
Main Belt covers 111 % of normal length
- Torpedo Bulkhead:
2.00" / 51 mm 540.00 ft / 164.59 m 28.00 ft / 8.53 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 6.00" / 152 mm 8.00" / 203 mm
2nd: 2.00" / 51 mm - -
- Armour deck: 5.00" / 127 mm, Conning tower: 8.00" / 203 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 4 shafts, 114,182 shp / 85,180 Kw = 30.00 kts
Range 7,500nm at 18.00 kts
Bunker at max displacement = 5,021 tons
Complement:
1,089 - 1,416
Cost:
£2.011 million / $8.044 million
Distribution of weights at normal displacement:
Armament: 756 tons, 2.7 %
Armour: 9,046 tons, 32.0 %
- Belts: 2,294 tons, 8.1 %
- Torpedo bulkhead: 1,119 tons, 4.0 %
- Armament: 1,090 tons, 3.9 %
- Armour Deck: 4,383 tons, 15.5 %
- Conning Tower: 160 tons, 0.6 %
Machinery: 3,604 tons, 12.8 %
Hull, fittings & equipment: 11,489 tons, 40.7 %
Fuel, ammunition & stores: 3,354 tons, 11.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
55,967 lbs / 25,386 Kg = 64.8 x 12.0 " / 305 mm shells or 9.8 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 7.2 ft / 2.2 m
Roll period: 15.7 seconds
Steadiness - As gun platform (Average = 50 %): 83 %
- Recoil effect (Restricted arc if above 1.00): 0.38
Seaboat quality (Average = 1.00): 1.66
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.438
Length to Beam Ratio: 7.50 : 1
'Natural speed' for length: 27.39 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -1.00 degrees
Stern overhang: 1.00 ft / 0.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.00 ft / 10.36 m
- Forecastle (20 %): 25.00 ft / 7.62 m
- Mid (50 %): 25.00 ft / 7.62 m
- Quarterdeck (15 %): 25.00 ft / 7.62 m
- Stern: 25.00 ft / 7.62 m
- Average freeboard: 25.72 ft / 7.84 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76.3 %
- Above water (accommodation/working, high = better): 207.2 %
Waterplane Area: 47,384 Square feet or 4,402 Square metres
Displacement factor (Displacement / loading): 127 %
Structure weight / hull surface area: 164 lbs/sq ft or 799 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.75
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
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.
Saturday, July 02, 2005
The smaller version of the Ger/CB/1911 design works as planned
I tried the 28,250 ton version of the Ger/CB/1911 design, and it works as planned. 30 knots is easily reached with the same armour and armament as the 34,500 ton version. in some respects, the smaller version is a better ship, given the superlatives in the Springsharp report:
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