H58 Plan:
420II, CHS Battleship laid down 1937
Displacement:
62,640 t light; 66,048 t standard; 71,628 t normal; 76,092 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(949.25 ft / 918.64 ft) x 118.11 ft (Bulges 131.23 ft) x (37.40 / 39.37 ft)
(289.33 m / 280.00 m) x 36.00 m (Bulges 40.00 m) x (11.40 / 12.00 m)
Armament:
9 - 18.11" / 460 mm 45.0 cal guns - 2,995.22lbs / 1,358.61kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1937 Model
3 x 3-gun mounts on centreline ends, majority forward
1 raised mount - superfiring
16 - 5.12" / 130 mm 60.0 cal guns - 73.41lbs / 33.30kg shells, 150 per gun
Dual purpose guns in turret on barbette mounts, 1937 Model
8 x Twin mounts on sides, evenly spread
12 - 5.12" / 130 mm 60.0 cal guns - 73.41lbs / 33.30kg shells, 150 per gun
Dual purpose guns in turret on barbette mounts, 1937 Model
6 x Twin mounts on side ends, majority forward
6 raised mounts
34 - 1.57" / 40.0 mm 70.0 cal guns - 2.18lbs / 0.99kg shells, 150 per gun
Anti-air guns in deck mounts, 1937 Model
17 x Twin mounts on sides, evenly spread
6 raised mounts
56 - 0.79" / 20.0 mm 45.0 cal guns - 0.24lbs / 0.11kg shells, 150 per gun
Machine guns in deck mounts, 1937 Model
14 x Quad mounts on centreline, evenly spread
14 raised mounts
Weight of broadside 29,100 lbs / 13,200 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 16.1" / 410 mm 633.86 ft / 193.20 m 18.04 ft / 5.50 m
Ends: 2.76" / 70 mm 284.74 ft / 86.79 m 10.50 ft / 3.20 m
Upper: 5.71" / 145 mm 633.86 ft / 193.20 m 7.87 ft / 2.40 m
Main Belt covers 106% of normal length
Main Belt inclined -10.00 degrees (positive = in)
- Torpedo Bulkhead - Additional damage containing bulkheads:
3.15" / 80 mm 633.86 ft / 193.20 m 36.75 ft / 11.20 m
Beam between torpedo bulkheads 111.55 ft / 34.00 m
- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 25.6" / 650 mm 11.0" / 280 mm 16.5" / 420 mm
2nd: 5.12" / 130 mm 0.39" / 10 mm 1.97" / 50 mm
3rd: 5.12" / 130 mm 0.39" / 10 mm 1.97" / 50 mm
- Armoured deck - multiple decks:
For and Aft decks: 5.91" / 150 mm
Forecastle: 1.97" / 50 mm Quarter deck: 1.97" / 50 mm
- Conning towers: Forward 18.90" / 480 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 4 shafts, 222,384 shp / 165,898 Kw = 32.00 kts
Range 8,000nm at 19.00 kts
Bunker at max displacement = 10,044 tons
Complement:
2,188 - 2,845
Cost:
£31.836 million / $127.344 million
Distribution of weights at normal displacement:
Armament: 5,747 tons, 8.0%
- Guns: 5,747 tons, 8.0%
Armour: 26,096 tons, 36.4%
- Belts: 9,262 tons, 12.9%
- Torpedo bulkhead: 2,714 tons, 3.8%
- Armament: 5,624 tons, 7.9%
- Armour Deck: 7,793 tons, 10.9%
- Conning Tower: 702 tons, 1.0%
Machinery: 6,164 tons, 8.6%
Hull, fittings & equipment: 24,531 tons, 34.2%
Fuel, ammunition & stores: 8,989 tons, 12.5%
Miscellaneous weights: 103 tons, 0.1%
- Hull below water: 100 tons
- Bulge void weights: 3 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
97,203 lbs / 44,091 Kg = 32.7 x 18.1 " / 460 mm shells or 18.8 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 7.2 ft / 2.2 m
Roll period: 20.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.54
Seaboat quality (Average = 1.00): 1.01
Hull form characteristics:
Hull has a flush deck,
an extended bulbous bow and large transom stern
Block coefficient (normal/deep): 0.556 / 0.561
Length to Beam Ratio: 7.00 : 1
'Natural speed' for length: 35.39 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 32.00 degrees
Stern overhang: 9.68 ft / 2.95 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 16.00%, 33.50 ft / 10.21 m, 26.28 ft / 8.01 m
- Forward deck: 34.00%, 26.28 ft / 8.01 m, 20.44 ft / 6.23 m
- Aft deck: 35.00%, 20.44 ft / 6.23 m, 21.42 ft / 6.53 m
- Quarter deck: 15.00%, 21.42 ft / 6.53 m, 23.72 ft / 7.23 m
- Average freeboard: 23.32 ft / 7.11 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 67.9%
- Above water (accommodation/working, high = better): 152.6%
Waterplane Area: 79,288 Square feet or 7,366 Square metres
Displacement factor (Displacement / loading): 110%
Structure weight / hull surface area: 244 lbs/sq ft or 1,191 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.13
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform