GB/CB/alt 6-shaft Super Fast, Great Britain Battlecruiser laid down 1922 (Engine 1926)
Displacement:
41,777 t light; 42,680 t standard; 45,152 t normal; 47,130 t full load
Dimensions: Length overall / water x beam x draught
874.66 ft / 867.00 ft x 119.00 ft x 34.00 ft (normal load)
266.60 m / 264.26 m x 36.27 m x 10.36 m
Armament:
4 - 17.00" / 432 mm guns (2x2 guns), 2,456.50lbs / 1,114.25kg shells, 1922 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts
16 - 4.00" / 102 mm guns (8x2 guns), 32.00lbs / 14.51kg shells, 1922 Model
Quick firing guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 10,338 lbs / 4,689 kg
Shells per gun, main battery: 0
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.00" / 178 mm 575.00 ft / 175.26 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 102 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
1.50" / 38 mm 575.00 ft / 175.26 m 29.00 ft / 8.84 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12.0" / 305 mm 7.00" / 178 mm 9.00" / 229 mm
2nd: 1.00" / 25 mm - -
- Armour deck: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 6 shafts, 312,670 shp / 233,252 Kw = 38.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 4,450 tons
Complement:
1,548 - 2,013
Cost:
£10.770 million / $43.079 million
Distribution of weights at normal displacement:
Armament: 1,292 tons, 2.9 %
Armour: 9,465 tons, 21.0 %
- Belts: 2,737 tons, 6.1 %
- Torpedo bulkhead: 925 tons, 2.0 %
- Armament: 2,007 tons, 4.4 %
- Armour Deck: 3,796 tons, 8.4 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 10,009 tons, 22.2 %
Hull, fittings & equipment: 21,011 tons, 46.5 %
Fuel, ammunition & stores: 3,375 tons, 7.5 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
58,836 lbs / 26,687 Kg = 24.0 x 17.0 " / 432 mm shells or 7.4 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 7.3 ft / 2.2 m
Roll period: 18.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.47
Seaboat quality (Average = 1.00): 1.10
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.451
Length to Beam Ratio: 7.29 : 1
'Natural speed' for length: 34.76 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 4.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 38.00 ft / 11.58 m
- Forecastle (32 %): 37.00 ft / 11.28 m
- Mid (38 %): 37.00 ft / 11.28 m (30.00 ft / 9.14 m aft of break)
- Quarterdeck (20 %): 30.00 ft / 9.14 m
- Stern: 31.00 ft / 9.45 m
- Average freeboard: 32.89 ft / 10.02 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 111.0 %
- Above water (accommodation/working, high = better): 259.8 %
Waterplane Area: 68,391 Square feet or 6,354 Square metres
Displacement factor (Displacement / loading): 113 %
Structure weight / hull surface area: 212 lbs/sq ft or 1,035 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.88
- Overall: 1.02
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
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Sunday, January 02, 2005
I had to inflate the "Super Fast Battlecruiser" design to work with Springsharp
I am very interested in the Springsharp program, especially since I also have a program (although mine is not in the public domain, at this point). I just tried to make my alternate "Super Fast Battlecruiser" design work with Springsharp. I guess I am happy that something like what I would have liked to have is possible at all:
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