Ger/CA/1916 12in guns, Germany Armoured Cruiser laid down 1916 (Engine 1927)
Displacement:
21,543 t light; 22,317 t standard; 23,850 t normal; 25,076 t full load
Dimensions: Length overall / water x beam x draught
726.08 ft / 725.00 ft x 80.00 ft x 22.70 ft (normal load)
221.31 m / 220.98 m x 24.38 m x 6.92 m
Armament:
6 - 12.00" / 305 mm guns (2x3 guns), 864.00lbs / 391.90kg shells, 1916 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount - superfiring
12 - 6.00" / 152 mm guns (6x2 guns), 108.00lbs / 48.99kg shells, 1916 Model
Quick firing guns in turrets (on barbettes)
on side, all forward, 2 raised mounts - superfiring
Weight of broadside 6,480 lbs / 2,939 kg
Shells per gun, main battery: 80
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 6.00" / 152 mm 500.00 ft / 152.40 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 106 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
1.00" / 25 mm 500.00 ft / 152.40 m 20.00 ft / 6.10 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.00" / 178 mm 5.00" / 127 mm 6.00" / 152 mm
2nd: 2.00" / 51 mm 2.00" / 51 mm 2.00" / 51 mm
- Armour deck: 3.00" / 76 mm, Conning tower: 6.00" / 152 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 163,220 shp / 121,762 Kw = 33.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 2,759 tons
Complement:
959 - 1,247
Cost:
£3.527 million / $14.110 million
Distribution of weights at normal displacement:
Armament: 810 tons, 3.4 %
Armour: 5,904 tons, 24.8 %
- Belts: 2,008 tons, 8.4 %
- Torpedo bulkhead: 370 tons, 1.6 %
- Armament: 989 tons, 4.1 %
- Armour Deck: 2,430 tons, 10.2 %
- Conning Tower: 107 tons, 0.4 %
Machinery: 5,152 tons, 21.6 %
Hull, fittings & equipment: 9,677 tons, 40.6 %
Fuel, ammunition & stores: 2,307 tons, 9.7 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
30,228 lbs / 13,711 Kg = 35.0 x 12.0 " / 305 mm shells or 3.4 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 4.9 ft / 1.5 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.63
Seaboat quality (Average = 1.00): 1.03
Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
Block coefficient: 0.634
Length to Beam Ratio: 9.06 : 1
'Natural speed' for length: 26.93 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 2.00 degrees
Stern overhang: -2.00 ft / -0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20 %): 28.00 ft / 8.53 m (17.00 ft / 5.18 m aft of break)
- Mid (50 %): 26.00 ft / 7.92 m (25.00 ft / 7.62 m aft of break)
- Quarterdeck (15 %): 25.00 ft / 7.62 m
- Stern: 25.00 ft / 7.62 m
- Average freeboard: 24.79 ft / 7.56 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 127.4 %
- Above water (accommodation/working, high = better): 203.4 %
Waterplane Area: 43,783 Square feet or 4,068 Square metres
Displacement factor (Displacement / loading): 105 %
Structure weight / hull surface area: 150 lbs/sq ft or 733 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.26
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
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.
Saturday, July 02, 2005
A fast German armoured cruiser: Ger/CA/1916
The Ger/CA/1916 is practically a battlecruiser. It is 725ft x 80ft x 22.7ft and the displacement ballooned to 23,850 tons from the planned 20,000 tons. The armament is 6-12in/50 BLR and 12-6in QF guns. The armour basis is 6 inches. The speed is a relatively fast 33 knots. The pencil drawing is of a flush-decked ship with two funnels, cased about 2/3's of the way up and with a tripod foremast. I tried to realy the sloped appearance of the hull, but Springsharp thinks it has a raised forecastle, when that is not the case. The look is more German than many of my so-called German ships. This is the Springsharp report:
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