Ger/CB/1912, Germany Battlecruiser laid down 1912 (Engine 1923)
Displacement:
34,585 t light; 35,859 t standard; 39,000 t normal; 41,513 t full load
Dimensions: Length overall / water x beam x draught
822.00 ft / 820.00 ft x 105.00 ft x 29.40 ft (normal load)
250.55 m / 249.94 m x 32.00 m x 8.96 m
Armament:
6 - 15.00" / 381 mm guns (2x3 guns), 1,687.50lbs / 765.44kg shells, 1912 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, 1912 Model
Quick firing guns in deck mounts with hoists
on side, all forward, 2 raised mounts - superfiring
Weight of broadside 10,989 lbs / 4,985 kg
Shells per gun, main battery: 80
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 6.00" / 152 mm 570.00 ft / 173.74 m 17.00 ft / 5.18 m
Ends: Unarmoured
Main Belt covers 107 % of normal length
- Torpedo Bulkhead:
2.00" / 51 mm 570.00 ft / 173.74 m 27.00 ft / 8.23 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 6.00" / 152 mm 10.0" / 254 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, 181,614 shp / 135,484 Kw = 32.00 kts
Range 6,500nm at 18.00 kts
Bunker at max displacement = 5,653 tons
Complement:
1,386 - 1,803
Cost:
£3.214 million / $12.856 million
Distribution of weights at normal displacement:
Armament: 1,374 tons, 3.5 %
Armour: 11,200 tons, 28.7 %
- Belts: 2,450 tons, 6.3 %
- Torpedo bulkhead: 1,139 tons, 2.9 %
- Armament: 1,910 tons, 4.9 %
- Armour Deck: 5,502 tons, 14.1 %
- Conning Tower: 198 tons, 0.5 %
Machinery: 6,070 tons, 15.6 %
Hull, fittings & equipment: 15,941 tons, 40.9 %
Fuel, ammunition & stores: 4,415 tons, 11.3 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
59,178 lbs / 26,843 Kg = 35.1 x 15.0 " / 381 mm shells or 8.4 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 7.7 ft / 2.3 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 63 %
- Recoil effect (Restricted arc if above 1.00): 0.47
Seaboat quality (Average = 1.00): 1.26
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.539
Length to Beam Ratio: 7.81 : 1
'Natural speed' for length: 28.64 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 35.00 ft / 10.67 m
- Forecastle (20 %): 30.00 ft / 9.14 m
- Mid (59 %): 30.00 ft / 9.14 m (20.00 ft / 6.10 m aft of break)
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 26.30 ft / 8.02 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 95.3 %
- Above water (accommodation/working, high = better): 212.6 %
Waterplane Area: 59,486 Square feet or 5,526 Square metres
Displacement factor (Displacement / loading): 114 %
Structure weight / hull surface area: 188 lbs/sq ft or 917 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.40
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
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Sunday, July 03, 2005
The Ger/CB/1912 with lower power
The lower power output version of the Ger/CB/1912 design works pretty well in Springsharp. This is the ship of which I have a photo. The design has 6-15in guns forward, in two triple turrets. The secondary armament of 8-6in QF guns is grouped around the forward superstructure, and is in shields. The armour basis is 6 inches. The design speed for a modest power is 32 knots. This is the Springsharp report:
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