Ger/CB/1911a1, Germany Battlecruiser laid down 1911
Displacement:
27,553 t light; 28,528 t standard; 31,564 t normal; 33,993 t full load
Dimensions: Length overall / water x beam x draught
752.00 ft / 750.00 ft x 100.00 ft x 30.00 ft (normal load)
229.21 m / 228.60 m x 30.48 m x 9.14 m
Armament:
6 - 12.00" / 305 mm guns (3x2 guns), 864.00lbs / 391.90kg shells, 1911 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, all raised mounts - superfiring
8 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1911 Model
Quick firing guns in deck mounts
on side, evenly spread
Weight of broadside 6,048 lbs / 2,743 kg
Shells per gun, main battery: 100
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 6.00" / 152 mm 400.00 ft / 121.92 m 18.00 ft / 5.49 m
Ends: Unarmoured
Main Belt covers 82 % of normal length
- 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, 142,435 shp / 106,256 Kw = 31.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 5,465 tons
Complement:
1,183 - 1,539
Cost:
£2.409 million / $9.635 million
Distribution of weights at normal displacement:
Armament: 756 tons, 2.4 %
Armour: 8,281 tons, 26.2 %
- Belts: 1,923 tons, 6.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1,601 tons, 5.1 %
- Armour Deck: 4,585 tons, 14.5 %
- Conning Tower: 172 tons, 0.5 %
Machinery: 5,781 tons, 18.3 %
Hull, fittings & equipment: 12,735 tons, 40.3 %
Fuel, ammunition & stores: 4,012 tons, 12.7 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
50,614 lbs / 22,958 Kg = 58.6 x 12.0 " / 305 mm shells or 4.0 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 6.4 ft / 1.9 m
Roll period: 16.6 seconds
Steadiness - As gun platform (Average = 50 %): 81 %
- Recoil effect (Restricted arc if above 1.00): 0.50
Seaboat quality (Average = 1.00): 1.62
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.491
Length to Beam Ratio: 7.50 : 1
'Natural speed' for length: 27.39 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -1.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.00 ft / 9.75 m
- Forecastle (20 %): 30.00 ft / 9.14 m
- Mid (0 %): 30.00 ft / 9.14 m
- Quarterdeck (15 %): 30.00 ft / 9.14 m
- Stern: 30.00 ft / 9.14 m
- Average freeboard: 30.16 ft / 9.19 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 78.0 %
- Above water (accommodation/working, high = better): 239.4 %
Waterplane Area: 49,565 Square feet or 4,605 Square metres
Displacement factor (Displacement / loading): 122 %
Structure weight / hull surface area: 168 lbs/sq ft or 820 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.98
- 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, January 08, 2005
I seem to have found the formula for a good ship
My German battlecruiser design for 1911 really is good, if you don't mind all the guns forward (6-12in/50). I actually was able to give the ship 31 knots instead of the planned 30 knots. The armor is light, but what I had planned. The armor deck is 5in, so that helps the ship be well protected, along with the 2in A/T bulkhead. The deck is flush with a good freeboard. That always helps a ship.
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