IJN Wo BB 1944

Wo, Japanese Battleship laid down 1942 (Engine 1943)

Displacement:
	82,454 t light; 90,007 t standard; 93,345 t normal; 96,015 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(958.01 ft / 958.01 ft) x 124.67 ft x (41.01 / 42.02 ft)
	(292.00 m / 292.00 m) x 38.00 m  x (12.50 / 12.81 m)

Armament:
      9 - 20.08" / 510 mm 45.0 cal guns - 4,081.94lbs / 1,851.54kg shells, 250 per gun
	  Breech loading guns in turret on barbette mounts, 1942 Model
	  3 x 3-gun mounts on centreline ends, majority forward
		2 raised mounts - superfiring
	  Main guns limited to end-on fire
      12 - 6.10" / 155 mm 45.0 cal guns - 114.59lbs / 51.98kg shells, 300 per gun
	  Breech loading guns in turret on barbette mounts, 1940 Model
	  4 x 2-gun mounts on sides, evenly spread
	  2 x 2-gun mounts on centreline ends, evenly spread
		2 raised mounts
      24 - 4.13" / 105 mm 45.0 cal guns - 35.62lbs / 16.16kg shells, 600 per gun
	  Dual purpose guns in turret on barbette mounts, 1937 Model
	  10 x Twin mounts on sides, evenly spread
		4 raised mounts
	  2 x Twin mounts on sides amidships
		2 double raised mounts
      120 - 0.98" / 25.0 mm 60.0 cal guns - 0.52lbs / 0.24kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1936 Model
	  30 x Triple mounts on sides, evenly spread
		10 raised mounts
	  10 x Triple mounts on sides amidships
		10 double raised mounts
      Weight of broadside 39,030 lbs / 17,704 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	18.1" / 460 mm	607.78 ft / 185.25 m	13.39 ft / 4.08 m
	Ends:	5.91" / 150 mm	327.23 ft / 99.74 m	13.39 ft / 4.08 m
	  23.00 ft / 7.01 m Unarmoured ends
	Upper:	5.91" / 150 mm	607.78 ft / 185.25 m	8.01 ft / 2.44 m
	  Main Belt covers 98% of normal length

   - Torpedo Bulkhead:
		10.6" / 270 mm	607.78 ft / 185.25 m	38.71 ft / 11.80 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	29.5" / 750 mm	11.8" / 300 mm		7.87" / 200 mm
	2nd:	5.00" / 127 mm	1.97" / 50 mm		1.97" / 50 mm
	3rd:	2.36" / 60 mm	1.77" / 45 mm		1.97" / 50 mm
	4th:	0.98" / 25 mm	      -			      -

   - Armoured deck - multiple decks: 7.87" / 200 mm For and Aft decks
	Forecastle: 7.87" / 200 mm  Quarter deck: 7.87" / 200 mm

   - Conning towers: Forward 27.56" / 700 mm,  Aft 0.00" / 0 mm

Machinery:
	Diesel Internal combustion motors,
	Geared drive, 6 shafts, 238,662 shp / 178,042 Kw = 30.00 kts
	Range 6,000nm at 16.00 kts
	Bunker at max displacement = 6,007 tons

Complement:
	2,669 - 3,471

Cost:
	£47.034 million / $188.134 million

Distribution of weights at normal displacement:
	Armament: 7,144 tons, 7.7%
	Armour: 37,997 tons, 40.7%
	   - Belts: 8,531 tons, 9.1%
	   - Torpedo bulkhead: 9,254 tons, 9.9%
	   - Armament: 5,344 tons, 5.7%
	   - Armour Deck: 13,646 tons, 14.6%
	   - Conning Tower: 1,222 tons, 1.3%
	Machinery: 6,164 tons, 6.6%
	Hull, fittings & equipment: 31,150 tons, 33.4%
	Fuel, ammunition & stores: 10,890 tons, 11.7%
	Miscellaneous weights: 0 tons, 0.0%

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  130,773 lbs / 59,317 Kg = 32.3 x 20.1 " / 510 mm shells or 29.7 torpedoes
	Stability (Unstable if below 1.00): 1.00
	Metacentric height 6.9 ft / 2.1 m
	Roll period: 19.9 seconds
	Steadiness	- As gun platform (Average = 50 %): 75 %
			- Recoil effect (Restricted arc if above 1.00): 1.13
	Seaboat quality  (Average = 1.00): 1.17

Hull form characteristics:
	Hull has a flush deck,
	  an extended bulbous bow and a cruiser stern
	Block coefficient (normal/deep): 0.667 / 0.670
	Length to Beam Ratio: 7.68 : 1
	'Natural speed' for length: 30.95 kts
	Power going to wave formation at top speed: 50 %
	Trim (Max stability = 0, Max steadiness = 100): 64
	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%,  26.25 ft / 8.00 m,  26.25 ft / 8.00 m
	   - Forward deck:	30.00%,  26.25 ft / 8.00 m,  26.25 ft / 8.00 m
	   - Aft deck:	35.00%,  26.25 ft / 8.00 m,  26.25 ft / 8.00 m
	   - Quarter deck:	15.00%,  26.25 ft / 8.00 m,  26.25 ft / 8.00 m
	   - Average freeboard:		26.25 ft / 8.00 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 73.0%
		- Above water (accommodation/working, high = better): 174.1%
	Waterplane Area: 92,926 Square feet or 8,633 Square metres
	Displacement factor (Displacement / loading): 110%
	Structure weight / hull surface area: 263 lbs/sq ft or 1,282 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
	Ship has slow, easy roll, a good, steady gun platform