Ger/CB/1912, Germany Battlecruiser laid down 1912 (Engine 1917)
Displacement:
26,947 t light; 27,966 t standard; 30,305 t normal; 32,176 t full load
Dimensions: Length overall / water x beam x draught
700.00 ft / 700.00 ft x 95.00 ft x 29.00 ft (normal load)
213.36 m / 213.36 m x 28.96 m x 8.84 m
Armament:
8 - 12.20" / 310 mm guns (4x2 guns), 944.00lbs / 428.19kg shells, 1912 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
14 - 6.00" / 152 mm guns in single mounts, 106.00lbs / 48.08kg shells, 1912 Model
Quick firing guns in casemate mounts
on side, evenly spread
Weight of broadside 9,036 lbs / 4,099 kg
Shells per gun, main battery: 80
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 279 mm 460.00 ft / 140.21 m 17.00 ft / 5.18 m
Ends: 5.00" / 127 mm 240.00 ft / 73.15 m 17.00 ft / 5.18 m
Main Belt covers 101 % of normal length
- Torpedo Bulkhead:
2.00" / 51 mm 460.00 ft / 140.21 m 26.00 ft / 7.92 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12.0" / 305 mm 7.00" / 178 mm 11.0" / 279 mm
2nd: 4.00" / 102 mm 4.00" / 102 mm 4.00" / 102 mm
- Armour deck: 3.00" / 76 mm, Conning tower: 11.00" / 279 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 4 shafts, 112,517 shp / 83,937 Kw = 29.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 4,211 tons
Complement:
1,147 - 1,492
Cost:
£2.442 million / $9.768 million
Distribution of weights at normal displacement:
Armament: 1,097 tons, 3.6 %
Armour: 10,464 tons, 34.5 %
- Belts: 4,442 tons, 14.7 %
- Torpedo bulkhead: 885 tons, 2.9 %
- Armament: 2,330 tons, 7.7 %
- Armour Deck: 2,576 tons, 8.5 %
- Conning Tower: 230 tons, 0.8 %
Machinery: 4,125 tons, 13.6 %
Hull, fittings & equipment: 11,262 tons, 37.2 %
Fuel, ammunition & stores: 3,358 tons, 11.1 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
48,788 lbs / 22,130 Kg = 53.7 x 12.2 " / 310 mm shells or 7.2 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 6.3 ft / 1.9 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 68 %
- Recoil effect (Restricted arc if above 1.00): 0.50
Seaboat quality (Average = 1.00): 1.36
Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak, raised quarterdeck
Block coefficient: 0.550
Length to Beam Ratio: 7.37 : 1
'Natural speed' for length: 26.46 kts
Power going to wave formation at top speed: 53 %
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: 30.00 ft / 9.14 m
- Forecastle (20 %): 28.00 ft / 8.53 m (27.00 ft / 8.23 m aft of break)
- Mid (50 %): 26.00 ft / 7.92 m (25.00 ft / 7.62 m aft of break)
- Quarterdeck (15 %): 26.00 ft / 7.92 m (25.00 ft / 7.62 m before break)
- Stern: 27.00 ft / 8.23 m
- Average freeboard: 26.44 ft / 8.06 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.8 %
- Above water (accommodation/working, high = better): 198.0 %
Waterplane Area: 46,410 Square feet or 4,312 Square metres
Displacement factor (Displacement / loading): 110 %
Structure weight / hull surface area: 163 lbs/sq ft or 797 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.58
- 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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Friday, July 01, 2005
A comparable German battlecruiser for 1912
The Ger/CB/1912 is the battlecruiser analog to the fast battleship design for 1912. They both are flush-decked and have twin stacks with funnel casings. The armament for the battlecruiser is identical: 8-12.2in BLR and 14-6in QF guns. Admittedly, they both "cheat" by using higher power output machinery. This is the Springsharp report:
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