Tagakota-class CA

Tagakota, Hiiro Heavy Cruiser laid down 1939

Displacement:
	12,465 t light; 12,918 t standard; 14,061 t normal; 14,975 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(669.18 ft / 656.00 ft) x 62.00 ft x (22.00 / 23.13 ft)
	(203.97 m / 199.95 m) x 18.90 m  x (6.71 / 7.05 m)

Armament:
      8 - 7.99" / 203 mm 50.0 cal guns - 270.21lbs / 122.57kg shells, 100 per gun
	  Breech loading guns in deck mounts, 1938 Model
	  2 x Twin mounts on centreline ends, evenly spread
		1 raised mount - superfiring
	  2 x Twin mounts on centreline ends, evenly spread
		1 raised mount - superfiring
      5 - 5.00" / 127 mm 50.0 cal guns - 66.16lbs / 30.01kg shells, 150 per gun
	  Breech loading guns in deck mounts, 1938 Model
	  3 x Single mounts on sides, evenly spread
		1 raised mount
	  2 x Single mounts on sides amidships
		2 raised mounts
      18 - 0.98" / 25.0 mm 60.0 cal guns - 0.52lbs / 0.24kg shells, 350 per gun
	  Breech loading guns in deck mounts, 1936 Model
	  4 x Triple mounts on sides, evenly spread
		2 raised mounts
	  2 x Triple mounts on sides amidships
		1 raised mount
      Weight of broadside 2,502 lbs / 1,135 kg
      6 - 24.0" / 610 mm, 29.53 ft / 9.00 m torpedoes - 2.480 t each, 14.880 t total
	In 2 sets of deck mounted side rotating tubes
      3 - 24.0" / 610 mm, 29.53 ft / 9.00 m torpedoes - 2.480 t each, 7.440 t total
	In 1 sets of deck mounted centre rotating tubes

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	7.00" / 178 mm	393.00 ft / 119.79 m	9.45 ft / 2.88 m
	Ends:	Unarmoured
	Upper:	5.00" / 127 mm	393.00 ft / 119.79 m	8.00 ft / 2.44 m
	  Main Belt covers 92 % of normal length
	  Main belt does not fully cover magazines and engineering spaces

   - Hull Bulges:
		2.00" / 51 mm	275.00 ft / 83.82 m	8.00 ft / 2.44 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	1.00" / 25 mm	      -			      -

   - Box over machinery: 1.00" / 25 mm
	Forecastle: 2.00" / 51 mm  Quarter deck: 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 163,895 shp / 122,265 Kw = 36.00 kts
	Range 9,000nm at 14.00 kts
	Bunker at max displacement = 2,057 tons

Complement:
	645 - 839

Cost:
	£6.915 million / $27.658 million

Distribution of weights at normal displacement:
	Armament: 376 tons, 2.7 %
	   - Guns: 354 tons, 2.5 %
	   - Torpedoes: 22 tons, 0.2 %
	Armour: 2,637 tons, 18.8 %
	   - Belts: 1,728 tons, 12.3 %
	   - Bulges: 163 tons, 1.1 %
	   - Armament: 14 tons, 0.1 %
	   - Armour Deck: 732 tons, 5.2 %
	Machinery: 4,434 tons, 31.5 %
	Hull, fittings & equipment: 4,950 tons, 35.2 %
	Fuel, ammunition & stores: 1,596 tons, 11.3 %
	Miscellaneous weights: 68 tons, 0.5 %
	   - Hull below water: 45 tons
	   - Hull void weights: 8 tons
	   - On freeboard deck: 15 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  14,011 lbs / 6,355 Kg = 54.9 x 8.0 " / 203 mm shells or 1.5 torpedoes
	Stability (Unstable if below 1.00): 1.09
	Metacentric height 2.9 ft / 0.9 m
	Roll period: 15.3 seconds
	Steadiness	- As gun platform (Average = 50 %): 82 %
			- Recoil effect (Restricted arc if above 1.00): 0.44
	Seaboat quality  (Average = 1.00): 1.26

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a straight bulbous bow and a round stern
	Block coefficient (normal/deep): 0.550 / 0.557
	Length to Beam Ratio: 10.58 : 1
	'Natural speed' for length: 25.61 kts
	Power going to wave formation at top speed: 61 %
	Trim (Max stability = 0, Max steadiness = 100): 65
	Bow angle (Positive = bow angles forward): 16.00 degrees
	Stern overhang: 2.00 ft / 0.61 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  39.00 ft / 11.89 m,  31.00 ft / 9.45 m
	   - Forward deck:	30.00 %,  31.00 ft / 9.45 m,  31.00 ft / 9.45 m
	   - Aft deck:	30.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
	   - Quarter deck:	20.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
	   - Average freeboard:		24.64 ft / 7.51 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 111.8 %
		- Above water (accommodation/working, high = better): 182.0 %
	Waterplane Area: 28,385 Square feet or 2,637 Square metres
	Displacement factor (Displacement / loading): 110 %
	Structure weight / hull surface area: 101 lbs/sq ft or 495 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.94
		- Longitudinal: 1.90
		- Overall: 1.00
	Hull space for machinery, storage, compartmentation is cramped
	Room for accommodation and workspaces is excellent
	Ship has slow, easy roll, a good, steady gun platform
	Good seaboat, rides out heavy weather easily