GB/CB/1916, Great Britain Battlecruiser laid down 1916 (Engine 1923)
Displacement:
49,840 t light; 52,115 t standard; 55,152 t normal; 57,581 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(921.17 ft / 915.00 ft) x 112.00 ft x (34.00 / 35.18 ft)
(280.77 m / 278.89 m) x 34.14 m x (10.36 / 10.72 m)
Armament:
9 - 16.50" / 419 mm 45.0 cal guns - 2,265.01lbs / 1,027.39kg shells, 90 per gun
Breech loading guns in turret on barbette mounts, 1916 Model
3 x Triple mounts on centreline ends, majority forward
16 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 150 per gun
Quick firing guns in deck and hoist mounts, 1916 Model
8 x Single mounts on sides, forward deck aft
2 raised mounts - superfiring
8 x Single mounts on sides, aft deck forward
2 raised mounts - superfiring
Weight of broadside 22,214 lbs / 10,076 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 635.00 ft / 193.55 m 9.00 ft / 2.74 m
Ends: Unarmoured
Upper: 9.00" / 229 mm 635.00 ft / 193.55 m 8.00 ft / 2.44 m
Main Belt covers 107 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead - Additional damage containing bulkheads:
2.00" / 51 mm 635.00 ft / 193.55 m 34.00 ft / 10.36 m
Beam between torpedo bulkheads 78.00 ft / 23.77 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 10.0" / 254 mm 14.0" / 356 mm
2nd: 5.00" / 127 mm 4.00" / 102 mm 5.00" / 127 mm
- Armoured 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 14.00" / 356 mm, Aft 9.00" / 229 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 6 shafts, 229,235 shp / 171,009 Kw = 32.50 kts
Range 6,500nm at 16.00 kts
Bunker at max displacement = 5,466 tons
Complement:
1,799 - 2,339
Cost:
£8.033 million / $32.132 million
Distribution of weights at normal displacement:
Armament: 3,807 tons, 6.9 %
- Guns: 3,807 tons, 6.9 %
Armour: 16,802 tons, 30.5 %
- Belts: 4,752 tons, 8.6 %
- Torpedo bulkhead: 1,598 tons, 2.9 %
- Armament: 4,388 tons, 8.0 %
- Armour Deck: 5,346 tons, 9.7 %
- Conning Towers: 718 tons, 1.3 %
Machinery: 7,662 tons, 13.9 %
Hull, fittings & equipment: 21,570 tons, 39.1 %
Fuel, ammunition & stores: 5,311 tons, 9.6 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
77,326 lbs / 35,075 Kg = 34.4 x 16.5 " / 419 mm shells or 10.4 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 7.5 ft / 2.3 m
Roll period: 17.1 seconds
Steadiness - As gun platform (Average = 50 %): 62 %
- Recoil effect (Restricted arc if above 1.00): 0.74
Seaboat quality (Average = 1.00): 1.24
Hull form characteristics:
Hull has low quarterdeck ,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.554 / 0.559
Length to Beam Ratio: 8.17 : 1
'Natural speed' for length: 30.25 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 35.00 ft / 10.67 m, 30.00 ft / 9.14 m
- Forward deck: 30.00 %, 30.00 ft / 9.14 m, 29.00 ft / 8.84 m
- Aft deck: 17.00 %, 29.00 ft / 8.84 m, 29.00 ft / 8.84 m
- Quarter deck: 33.00 %, 22.00 ft / 6.71 m, 22.00 ft / 6.71 m
- Average freeboard: 27.44 ft / 8.36 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 114.1 %
- Above water (accommodation/working, high = better): 222.9 %
Waterplane Area: 71,789 Square feet or 6,669 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 221 lbs/sq ft or 1,080 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.23
- Overall: 1.00
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily
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.
Wednesday, November 26, 2008
The GB/CB/1916 (Hood style)
I had this concept for a variant of the GB/CB/1916 design that would rather Hood-like with 9-16.5in/45 and 16-6in QF guns with a 32.5 knot speed. The thickest part of the belt is 12in and the ship uses "all or nothing" protection. The "look" is similar to the 36-knot ship, which is an intermediate type between the Repulse and the Hood.

No comments:
Post a Comment