HMS Vanguard, Great Britain Battleship laid down 1926
Displacement:
43,428 t light; 45,549 t standard; 47,595 t normal; 49,231 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(820.00 ft / 820.00 ft) x 108.00 ft x (33.00 / 33.87 ft)
(249.94 m / 249.94 m) x 32.92 m x (10.06 / 10.32 m)
Armament:
9 - 16.00" / 406 mm 45.0 cal guns - 2,065.46lbs / 936.88kg shells, 100 per gun
Breech loading guns in turret on barbette mounts, 1926 Model
2 x 3-gun mounts on centreline, forward deck forward
1 raised mount - superfiring
1 x 3-gun mount on centreline, aft deck aft
20 - 4.50" / 114 mm 45.0 cal guns - 45.95lbs / 20.84kg shells, 250 per gun
Dual purpose guns in turret on barbette mounts, 1926 Model
10 x Twin mounts on sides, evenly spread
48 - 1.57" / 39.9 mm 60.0 cal guns - 2.12lbs / 0.96kg shells, 150 per gun
Anti-air guns in deck mounts, 1926 Model
12 x Quad mounts on centreline, evenly spread
Weight of broadside 19,610 lbs / 8,895 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.0" / 356 mm 480.00 ft / 146.30 m 12.00 ft / 3.66 m
Ends: Unarmoured
Upper: 8.00" / 203 mm 480.00 ft / 146.30 m 8.00 ft / 2.44 m
Main Belt covers 90 % of normal length
Main Belt inclined 12.00 degrees (positive = in)
- Torpedo Bulkhead - Additional damage containing bulkheads:
2.00" / 51 mm 600.00 ft / 182.88 m 35.00 ft / 10.67 m
Beam between torpedo bulkheads 94.00 ft / 28.65 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 8.00" / 203 mm 14.0" / 356 mm
2nd: 1.50" / 38 mm 1.50" / 38 mm 1.50" / 38 mm
- Armoured deck - multiple decks:
For and Aft decks: 6.00" / 152 mm
- Conning towers: Forward 9.00" / 229 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 179,542 shp / 133,939 Kw = 32.00 kts
Range 8,500nm at 12.00 kts
Bunker at max displacement = 3,682 tons
Complement:
1,610 - 2,094
Cost:
£14.349 million / $57.398 million
Distribution of weights at normal displacement:
Armament: 3,932 tons, 8.3 %
- Guns: 3,932 tons, 8.3 %
Armour: 16,300 tons, 34.2 %
- Belts: 4,856 tons, 10.2 %
- Torpedo bulkhead: 1,554 tons, 3.3 %
- Armament: 3,666 tons, 7.7 %
- Armour Deck: 5,969 tons, 12.5 %
- Conning Tower: 255 tons, 0.5 %
Machinery: 5,747 tons, 12.1 %
Hull, fittings & equipment: 17,449 tons, 36.7 %
Fuel, ammunition & stores: 4,167 tons, 8.8 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
65,892 lbs / 29,888 Kg = 32.2 x 16.0 " / 406 mm shells or 9.8 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 7.0 ft / 2.1 m
Roll period: 17.2 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.67
Seaboat quality (Average = 1.00): 1.10
Hull form characteristics:
Hull has a flush deck,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.570 / 0.574
Length to Beam Ratio: 7.59 : 1
'Natural speed' for length: 33.15 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 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, 24.00 ft / 7.32 m
- Forward deck: 30.00 %, 24.00 ft / 7.32 m, 24.00 ft / 7.32 m
- Aft deck: 35.00 %, 24.00 ft / 7.32 m, 24.00 ft / 7.32 m
- Quarter deck: 15.00 %, 24.00 ft / 7.32 m, 26.00 ft / 7.92 m
- Average freeboard: 25.03 ft / 7.63 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.5 %
- Above water (accommodation/working, high = better): 186.2 %
Waterplane Area: 65,593 Square feet or 6,094 Square metres
Displacement factor (Displacement / loading): 105 %
Structure weight / hull surface area: 212 lbs/sq ft or 1,034 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.44
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room