GB/CB/1909, Great Britain Battlecruiser laid down 1909
Displacement:
29,288 t light; 30,599 t standard; 35,272 t normal; 39,010 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(736.00 ft / 728.00 ft) x 95.00 ft x (30.00 / 32.60 ft)
(224.33 m / 221.89 m) x 28.96 m x (9.14 / 9.94 m)
Armament:
8 - 13.50" / 343 mm 45.0 cal guns - 1,240.67lbs / 562.76kg shells, 90 per gun
Breech loading guns in turret on barbette mounts, 1909 Model
4 x Twin mounts on centreline ends, evenly spread
1 raised mount - superfiring
12 - 6.00" / 152 mm 45.0 cal guns - 108.93lbs / 49.41kg shells, 150 per gun
Quick firing guns in casemate mounts, 1909 Model
12 x Single mounts on sides, forward deck aft
Weight of broadside 11,233 lbs / 5,095 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 475.00 ft / 144.78 m 9.00 ft / 2.74 m
Ends: Unarmoured
Upper: 10.0" / 254 mm 475.00 ft / 144.78 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length
- Torpedo Bulkhead - Strengthened structural bulkheads:
2.00" / 51 mm 455.00 ft / 138.68 m 30.00 ft / 9.14 m
Beam between torpedo bulkheads 95.00 ft / 28.96 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12.0" / 305 mm 9.00" / 229 mm 12.0" / 305 mm
2nd: 4.00" / 102 mm 3.00" / 76 mm 4.00" / 102 mm
- Protected deck - multiple decks:
For and Aft decks: 4.00" / 102 mm
Forecastle: 4.00" / 102 mm Quarter deck: 4.00" / 102 mm
- Conning towers: Forward 12.00" / 305 mm, Aft 9.00" / 229 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 4 shafts, 93,167 shp / 69,503 Kw = 27.00 kts
Range 8,500nm at 16.00 kts
Bunker at max displacement = 8,411 tons
Complement:
1,286 - 1,672
Cost:
£2.606 million / $10.422 million
Distribution of weights at normal displacement:
Armament: 1,928 tons, 5.5 %
- Guns: 1,928 tons, 5.5 %
Armour: 11,946 tons, 33.9 %
- Belts: 3,799 tons, 10.8 %
- Torpedo bulkhead: 1,010 tons, 2.9 %
- Armament: 2,902 tons, 8.2 %
- Armour Deck: 3,747 tons, 10.6 %
- Conning Towers: 487 tons, 1.4 %
Machinery: 4,235 tons, 12.0 %
Hull, fittings & equipment: 11,180 tons, 31.7 %
Fuel, ammunition & stores: 5,983 tons, 17.0 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
62,433 lbs / 28,319 Kg = 50.8 x 13.5 " / 343 mm shells or 9.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 6.0 ft / 1.8 m
Roll period: 16.2 seconds
Steadiness - As gun platform (Average = 50 %): 80 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.60
Hull form characteristics:
Hull has low quarterdeck ,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.595 / 0.606
Length to Beam Ratio: 7.66 : 1
'Natural speed' for length: 26.98 kts
Power going to wave formation at top speed: 49 %
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 (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 28.00 %, 30.00 ft / 9.14 m, 28.00 ft / 8.53 m
- Forward deck: 30.00 %, 28.00 ft / 8.53 m, 28.00 ft / 8.53 m
- Aft deck: 9.00 %, 28.00 ft / 8.53 m, 28.00 ft / 8.53 m
- Quarter deck: 33.00 %, 20.00 ft / 6.10 m, 20.00 ft / 6.10 m
- Average freeboard: 25.58 ft / 7.80 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 65.0 %
- Above water (accommodation/working, high = better): 208.8 %
Waterplane Area: 50,347 Square feet or 4,677 Square metres
Displacement factor (Displacement / loading): 118 %
Structure weight / hull surface area: 175 lbs/sq ft or 853 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.57
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
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