GB/CB/Super Lion, Great Britain Battlecruiser laid down 1912
Displacement:
34,788 t light; 36,420 t standard; 36,420 t normal; 36,420 t full load
Dimensions: Length overall / water x beam x draught
795.00 ft / 795.00 ft x 95.00 ft x 29.00 ft (normal load)
242.32 m / 242.32 m x 28.96 m x 8.84 m
Armament:
10 - 15.00" / 381 mm guns (5x2 guns), 1,687.50lbs / 765.44kg shells, 1912 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread, all raised mounts
Main guns limited to end-on fire
16 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1912 Model
Quick firing guns in casemate mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 17,875 lbs / 8,108 kg
Shells per gun, main battery: 90
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 9.00" / 229 mm 0.00 ft / 0.00 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 0 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9.00" / 229 mm 6.00" / 152 mm 9.00" / 229 mm
2nd: 3.00" / 76 mm 3.00" / 76 mm 2.00" / 51 mm
- Armour deck: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 4 shafts, 177,449 shp / 132,377 Kw = 32.00 kts
Range 6,500nm at 0.00 kts
Bunker at max displacement = 0 tons
Complement:
1,317 - 1,713
Cost:
£4.085 million / $16.340 million
Distribution of weights at normal displacement:
Armament: 2,234 tons, 6.1 %
Armour: 7,420 tons, 20.4 %
- Belts: 506 tons, 1.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3,899 tons, 10.7 %
- Armour Deck: 3,014 tons, 8.3 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 7,075 tons, 19.4 %
Hull, fittings & equipment: 18,059 tons, 49.6 %
Fuel, ammunition & stores: 1,632 tons, 4.5 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
27,212 lbs / 12,343 Kg = 16.1 x 15.0 " / 381 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 0.94
Metacentric height 4.0 ft / 1.2 m
Roll period: 19.9 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 1.68
Seaboat quality (Average = 1.00): 1.08
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.582
Length to Beam Ratio: 8.37 : 1
'Natural speed' for length: 28.20 kts
Power going to wave formation at top speed: 54 %
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: 31.00 ft / 9.45 m
- Forecastle (18 %): 30.00 ft / 9.14 m
- Mid (85 %): 30.00 ft / 9.14 m (20.00 ft / 6.10 m aft of break)
- Quarterdeck (18 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 28.57 ft / 8.71 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 108.5 %
- Above water (accommodation/working, high = better): 238.7 %
Waterplane Area: 54,315 Square feet or 5,046 Square metres
Displacement factor (Displacement / loading): 92 %
Structure weight / hull surface area: 221 lbs/sq ft or 1,080 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.41
- Overall: 1.00
Caution: Poor stability - excessive risk of capsizing
Hull space for machinery, storage, compartmentation is adequate
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.
Friday, January 07, 2005
The "Super Lion"
I just took another try at the "Super Lion" battlecruiser described in The World Crisis, Vol.1. This is rather speculative, but I think it captures Admiral Fisher's intent. The size is much greater than he would have liked (36,420 tons normal). Nonetheless, I am pleased with the result.
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