vickers

Vickers 788A, Spanish Battlecruiser laid down 1921

Displacement:
	40,752 t light; 42,614 t standard; 45,901 t normal; 48,531 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(892.39 ft / 892.39 ft) x 104.99 ft x (30.51 / 31.90 ft)
	(272.00 m / 272.00 m) x 32.00 m  x (9.30 / 9.72 m)

Armament:
      8 - 15.75" / 400 mm 50.0 cal guns - 2,063.53lbs / 936.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1921 Model
	  2 x Quad mounts on centreline, forward evenly spread
      10 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 150 per gun
	  Quick firing guns in deck and hoist mounts, 1921 Model
	  10 x Single mounts on sides, evenly spread
      12 - 0.59" / 15.0 mm 45.0 cal guns - 0.10lbs / 0.05kg shells, 950 per gun
	  Machine guns in deck mounts, 1921 Model
	  12 x Single mounts on sides, evenly spread
      Weight of broadside 16,817 lbs / 7,628 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	11.8" / 300 mm	580.05 ft / 176.80 m	12.30 ft / 3.75 m
	Ends:	5.91" / 150 mm	312.30 ft / 95.19 m	12.30 ft / 3.75 m
	Upper:	5.91" / 150 mm	580.05 ft / 176.80 m	8.01 ft / 2.44 m
	  Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		1.97" / 50 mm	580.05 ft / 176.80 m	28.22 ft / 8.60 m
	Beam between torpedo bulkheads 98.43 ft / 30.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	15.0" / 381 mm	9.00" / 229 mm		15.0" / 381 mm

   - Armoured deck - multiple decks:
	For and Aft decks: 1.97" / 50 mm
	Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 11.81" / 300 mm, Aft 5.91" / 150 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 219,582 shp / 163,808 Kw = 33.00 kts
	Range 9,000nm at 15.00 kts
	Bunker at max displacement = 5,917 tons

Complement:
	1,567 - 2,038

Cost:
	£10.762 million / $43.047 million

Distribution of weights at normal displacement:
	Armament: 3,083 tons, 6.7 %
	   - Guns: 3,083 tons, 6.7 %
	Armour: 12,021 tons, 26.2 %
	   - Belts: 5,524 tons, 12.0 %
	   - Torpedo bulkhead: 1,192 tons, 2.6 %
	   - Armament: 2,389 tons, 5.2 %
	   - Armour Deck: 2,428 tons, 5.3 %
	   - Conning Towers: 489 tons, 1.1 %
	Machinery: 7,561 tons, 16.5 %
	Hull, fittings & equipment: 17,437 tons, 38.0 %
	Fuel, ammunition & stores: 5,149 tons, 11.2 %
	Miscellaneous weights: 650 tons, 1.4 %
	   - Hull below water: 50 tons
	   - Hull above water: 100 tons
	   - On freeboard deck: 200 tons
	   - Above deck: 300 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  52,195 lbs / 23,675 Kg = 26.7 x 15.7 " / 400 mm shells or 6.8 torpedoes
	Stability (Unstable if below 1.00): 1.09
	Metacentric height 6.3 ft / 1.9 m
	Roll period: 17.5 seconds
	Steadiness	- As gun platform (Average = 50 %): 70 %
			- Recoil effect (Restricted arc if above 1.00): 0.60
	Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
	Hull has a flush deck,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0.562 / 0.568
	Length to Beam Ratio: 8.50 : 1
	'Natural speed' for length: 29.87 kts
	Power going to wave formation at top speed: 51 %
	Trim (Max stability = 0, Max steadiness = 100): 66
	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 %,  32.87 ft / 10.02 m,  26.87 ft / 8.19 m
	   - Forward deck:	30.00 %,  26.87 ft / 8.19 m,  20.90 ft / 6.37 m
	   - Aft deck:	35.00 %,  20.90 ft / 6.37 m,  20.90 ft / 6.37 m
	   - Quarter deck:	15.00 %,  20.90 ft / 6.37 m,  20.90 ft / 6.37 m
	   - Average freeboard:		23.47 ft / 7.15 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 93.9 %
		- Above water (accommodation/working, high = better): 179.1 %
	Waterplane Area: 66,125 Square feet or 6,143 Square metres
	Displacement factor (Displacement / loading): 103 %
	Structure weight / hull surface area: 200 lbs/sq ft or 975 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 1.00
		- Longitudinal: 1.04
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Ship has slow, easy roll, a good, steady gun platform