Seishu-Class Battlecruiser, Design 6F [1936] (Taishe)

Seishu-Class (Plan 6), Taishe Dynasty Battlecruiser laid down 1936

Displacement:
	35,297 t light; 37,500 t standard; 40,244 t normal; 42,439 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(666.68 ft / 656.17 ft) x 106.63 ft x (36.09 / 37.59 ft)
	(203.20 m / 200.00 m) x 32.50 m  x (11.00 / 11.46 m)

Armament:
      10 - 14.17" / 360 mm 47.0 cal guns - 1,708.58lbs / 775.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1934 Model
	  1 x 5-gun mount on centreline, forward deck forward
	  1 x 5-gun mount on centreline, aft deck aft
      30 - 4.33" / 110 mm 40.0 cal guns - 52.36lbs / 23.75kg shells, 500 per gun
	  Dual purpose guns in deck and hoist mounts, 1934 Model
	  10 x Triple mounts on sides, evenly spread
		4 raised mounts
      40 - 0.79" / 20.0 mm 75.0 cal guns - 0.29lbs / 0.13kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1934 Model
	  10 x Twin mounts on sides, evenly spread
      Weight of broadside 18,668 lbs / 8,468 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	14.2" / 360 mm	419.95 ft / 128.00 m	12.40 ft / 3.78 m
	Ends:	2.95" / 75 mm	236.19 ft / 71.99 m	12.40 ft / 3.78 m
	  Main Belt covers 98 % of normal length
	  Main Belt inclined -20.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		2.95" / 75 mm	419.95 ft / 128.00 m	33.30 ft / 10.15 m
	Beam between torpedo bulkheads 73.82 ft / 22.50 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	18.9" / 480 mm	7.87" / 200 mm		13.0" / 330 mm
	2nd:	3.94" / 100 mm	1.97" / 50 mm		1.97" / 50 mm
	3rd:	0.98" / 25 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 5.91" / 150 mm
	Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 11.81" / 300 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Electric motors, 4 shafts, 134,714 shp / 100,497 Kw = 30.00 kts
	Range 10,000nm at 14.00 kts
	Bunker at max displacement = 4,940 tons

Complement:
	1,419 - 1,846

Cost:
	£17.447 million / $69.789 million

Distribution of weights at normal displacement:
	Armament: 3,449 tons, 8.6 %
	   - Guns: 3,449 tons, 8.6 %
	Armour: 13,279 tons, 33.0 %
	   - Belts: 3,579 tons, 8.9 %
	   - Torpedo bulkhead: 1,528 tons, 3.8 %
	   - Armament: 2,959 tons, 7.4 %
	   - Armour Deck: 4,915 tons, 12.2 %
	   - Conning Tower: 299 tons, 0.7 %
	Machinery: 3,780 tons, 9.4 %
	Hull, fittings & equipment: 14,390 tons, 35.8 %
	Fuel, ammunition & stores: 4,947 tons, 12.3 %
	Miscellaneous weights: 400 tons, 1.0 %
	   - Hull below water: 200 tons
	   - On freeboard deck: 100 tons
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  65,432 lbs / 29,679 Kg = 46.0 x 14.2 " / 360 mm shells or 10.6 torpedoes
	Stability (Unstable if below 1.00): 1.17
	Metacentric height 7.4 ft / 2.2 m
	Roll period: 16.5 seconds
	Steadiness	- As gun platform (Average = 50 %): 60 %
			- Recoil effect (Restricted arc if above 1.00): 0.74
	Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
	Hull has a flush deck,
	  an extended bulbous bow and large transom stern
	Block coefficient (normal/deep): 0.558 / 0.565
	Length to Beam Ratio: 6.15 : 1
	'Natural speed' for length: 30.26 kts
	Power going to wave formation at top speed: 60 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 10.00 degrees
	Stern overhang: 3.28 ft / 1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	21.00 %,  41.01 ft / 12.50 m,  30.35 ft / 9.25 m
	   - Forward deck:	30.00 %,  30.35 ft / 9.25 m,  27.89 ft / 8.50 m
	   - Aft deck:	34.00 %,  27.89 ft / 8.50 m,  27.89 ft / 8.50 m
	   - Quarter deck:	15.00 %,  27.89 ft / 8.50 m,  32.81 ft / 10.00 m
	   - Average freeboard:		30.04 ft / 9.16 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 97.4 %
		- Above water (accommodation/working, high = better): 195.7 %
	Waterplane Area: 51,219 Square feet or 4,758 Square metres
	Displacement factor (Displacement / loading): 112 %
	Structure weight / hull surface area: 211 lbs/sq ft or 1,030 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.89
		- Longitudinal: 2.84
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily