Seishu-Class Battlecruiser, Design 5E [1936] (Taishe)

Seishu-Class (Plan 5), Taishe Dynasty Battlecruiser laid down 1936

Displacement:
	35,487 t light; 37,500 t standard; 40,251 t normal; 42,452 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(666.39 ft / 656.17 ft) x 103.35 ft x (32.81 / 34.25 ft)
	(203.12 m / 200.00 m) x 31.50 m  x (10.00 / 10.44 m)

Armament:
      8 - 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
	  2 x 4-gun mounts on centreline ends, evenly spread
      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 15,251 lbs / 6,918 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	15.7" / 400 mm	419.95 ft / 128.00 m	12.20 ft / 3.72 m
	Ends:	3.94" / 100 mm	236.19 ft / 71.99 m	12.20 ft / 3.72 m
	  Main Belt covers 98 % of normal length
	  Main Belt inclined -10.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		2.95" / 75 mm	419.95 ft / 128.00 m	31.33 ft / 9.55 m
	Beam between torpedo bulkheads 65.62 ft / 20.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	18.3" / 465 mm	9.84" / 250 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: 6.69" / 170 mm
	Forecastle: 1.97" / 50 mm  Quarter deck: 3.94" / 100 mm

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

Machinery:
	Oil fired boilers, steam turbines,
	Electric motors, 4 shafts, 140,426 shp / 104,758 Kw = 30.00 kts
	Range 10,000nm at 14.00 kts
	Bunker at max displacement = 4,952 tons

Complement:
	1,420 - 1,847

Cost:
	£16.080 million / $64.318 million

Distribution of weights at normal displacement:
	Armament: 2,808 tons, 7.0 %
	   - Guns: 2,808 tons, 7.0 %
	Armour: 14,394 tons, 35.8 %
	   - Belts: 3,997 tons, 9.9 %
	   - Torpedo bulkhead: 1,438 tons, 3.6 %
	   - Armament: 2,722 tons, 6.8 %
	   - Armour Deck: 5,938 tons, 14.8 %
	   - Conning Tower: 299 tons, 0.7 %
	Machinery: 3,940 tons, 9.8 %
	Hull, fittings & equipment: 13,944 tons, 34.6 %
	Fuel, ammunition & stores: 4,764 tons, 11.8 %
	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):
	  76,401 lbs / 34,655 Kg = 53.7 x 14.2 " / 360 mm shells or 12.3 torpedoes
	Stability (Unstable if below 1.00): 1.18
	Metacentric height 7.1 ft / 2.2 m
	Roll period: 16.3 seconds
	Steadiness	- As gun platform (Average = 50 %): 60 %
			- Recoil effect (Restricted arc if above 1.00): 0.73
	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): 0.633 / 0.640
	Length to Beam Ratio: 6.35 : 1
	'Natural speed' for length: 29.91 kts
	Power going to wave formation at top speed: 61 %
	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 %,  39.37 ft / 12.00 m,  35.27 ft / 10.75 m
	   - Forward deck:	30.00 %,  35.27 ft / 10.75 m,  30.35 ft / 9.25 m
	   - Aft deck:	34.00 %,  30.35 ft / 9.25 m,  30.35 ft / 9.25 m
	   - Quarter deck:	15.00 %,  30.35 ft / 9.25 m,  30.35 ft / 9.25 m
	   - Average freeboard:		32.46 ft / 9.90 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 98.3 %
		- Above water (accommodation/working, high = better): 225.4 %
	Waterplane Area: 53,348 Square feet or 4,956 Square metres
	Displacement factor (Displacement / loading): 116 %
	Structure weight / hull surface area: 195 lbs/sq ft or 951 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.90
		- Longitudinal: 2.57
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily