GB/BB/1916 Battleship-Cruiser, Great Britain Battleship-Cruiser laid down 1916
Displacement:
41,176 t light; 43,002 t standard; 45,800 t normal; 48,038 t full load
Dimensions: Length overall / water x beam x draught
814.31 ft / 812.00 ft x 104.00 ft x 30.00 ft (normal load)
248.20 m / 247.50 m x 31.70 m x 9.14 m
Armament:
8 - 16.00" / 406 mm guns (4x2 guns), 2,048.00lbs / 928.96kg shells, 1916 Model
Breech loading guns in turrets (on barbettes)
on side ends, evenly spread, 2 raised mounts - superfiring
16 - 5.50" / 140 mm guns in single mounts, 83.19lbs / 37.73kg shells, 1916 Model
Quick firing guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1916 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, all raised mounts
24 - 1.57" / 40.0 mm guns (2x12 guns), 2.00lbs / 0.91kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 17,891 lbs / 8,115 kg
Shells per gun, main battery: 90
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.0" / 356 mm 530.00 ft / 161.54 m 17.00 ft / 5.18 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 10.0" / 254 mm 14.0" / 356 mm
2nd: 4.00" / 102 mm - -
- Armour deck: 5.00" / 127 mm, Conning tower: 14.00" / 356 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 141,818 shp / 105,796 Kw = 29.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 5,037 tons
Complement:
1,564 - 2,034
Cost:
£6.643 million / $26.570 million
Distribution of weights at normal displacement:
Armament: 2,236 tons, 4.9 %
Armour: 15,711 tons, 34.3 %
- Belts: 5,407 tons, 11.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4,029 tons, 8.8 %
- Armour Deck: 5,890 tons, 12.9 %
- Conning Tower: 386 tons, 0.8 %
Machinery: 5,284 tons, 11.5 %
Hull, fittings & equipment: 17,945 tons, 39.2 %
Fuel, ammunition & stores: 4,624 tons, 10.1 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
63,605 lbs / 28,851 Kg = 31.1 x 16.0 " / 406 mm shells or 4.5 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 6.2 ft / 1.9 m
Roll period: 17.6 seconds
Steadiness - As gun platform (Average = 50 %): 62 %
- Recoil effect (Restricted arc if above 1.00): 0.80
Seaboat quality (Average = 1.00): 1.24
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.633
Length to Beam Ratio: 7.81 : 1
'Natural speed' for length: 28.50 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 4.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 33.00 ft / 10.06 m
- Forecastle (20 %): 27.00 ft / 8.23 m
- Mid (67 %): 27.00 ft / 8.23 m (19.00 ft / 5.79 m aft of break)
- Quarterdeck (15 %): 19.00 ft / 5.79 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 24.84 ft / 7.57 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 74.3 %
- Above water (accommodation/working, high = better): 192.2 %
Waterplane Area: 63,672 Square feet or 5,915 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 202 lbs/sq ft or 987 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.20
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
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.
Saturday, October 29, 2005
A pretty conventional, if large, 1916 British battleship-cruiser
I was looking at the Queen Victoria class page, and thought about my 1912 design for a battleship-cruiser. The next obvious step would be to design a 1916 battleship-cruiser. The layout is pretty conventional with 8-16in guns in twin turrets in the usual arrangement. The secondary battery is 16-5.5in QF guns. I am not looking for extreme speeds (in this case), but I wanted an advance over the 1912 ships. I chose a maximum speed of 29 knots. As usual, the ships are large. The armour basis is 14in, so the design is well-protected. This is the Springsharp report:
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