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