Seishu-Class Battlecruiser (1936) (Taishe)

Seishu-Class, Taishe Dynasty Battlecruiser laid down 1936

Displacement:
	35,432 t light; 37,073 t standard; 39,711 t normal; 41,822 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(832.87 ft / 826.77 ft) x 98.43 ft x (31.17 / 32.42 ft)
	(253.86 m / 252.00 m) x 30.00 m  x (9.50 / 9.88 m)

Armament:
      8 - 14.17" / 360 mm 47.0 cal guns - 1,488.12lbs / 675.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1934 Model
	  2 x Triple mounts on centreline, evenly spread
	  1 x Twin mount on centreline, forward deck centre
		1 raised mount
      12 - 5.91" / 150 mm 50.0 cal guns - 109.02lbs / 49.45kg shells, 200 per gun
	  Quick firing guns in turret on barbette mounts, 1934 Model
	  6 x Twin mounts on sides, evenly spread
      12 - 3.15" / 80.0 mm 60.0 cal guns - 17.11lbs / 7.76kg shells, 300 per gun
	  Dual purpose guns in deck and hoist mounts, 1934 Model
	  6 x Twin mounts on sides, evenly spread
		6 raised mounts
      40 - 0.79" / 20.0 mm 75.0 cal guns - 0.29lbs / 0.13kg shells, 1,000 per gun
	  Anti-air guns in deck mounts, 1934 Model
	  10 x 2 row quad mounts on sides, evenly spread
      Weight of broadside 13,430 lbs / 6,092 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	15.0" / 380 mm	485.56 ft / 148.00 m	11.91 ft / 3.63 m
	Ends:	2.95" / 75 mm	341.21 ft / 104.00 m	11.91 ft / 3.63 m
	  Main Belt covers 90 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		2.95" / 75 mm	485.56 ft / 148.00 m	27.10 ft / 8.26 m
	Beam between torpedo bulkheads 65.62 ft / 20.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	15.7" / 400 mm	9.84" / 250 mm		11.8" / 300 mm
	2nd:	5.91" / 150 mm	3.94" / 100 mm		3.94" / 100 mm
	3rd:	2.95" / 75 mm	1.97" / 50 mm		1.97" / 50 mm
	4th:	1.97" / 50 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,  plus diesel motors,
	Electric motors, 4 shafts, 124,181 shp / 92,639 Kw = 30.00 kts
	Range 10,000nm at 14.00 kts
	Bunker at max displacement = 4,748 tons

Complement:
	1,406 - 1,828

Cost:
	£16.075 million / $64.301 million

Distribution of weights at normal displacement:
	Armament: 2,497 tons, 6.3 %
	   - Guns: 2,497 tons, 6.3 %
	Armour: 14,628 tons, 36.8 %
	   - Belts: 4,154 tons, 10.5 %
	   - Torpedo bulkhead: 1,438 tons, 3.6 %
	   - Armament: 3,048 tons, 7.7 %
	   - Armour Deck: 5,692 tons, 14.3 %
	   - Conning Tower: 296 tons, 0.7 %
	Machinery: 3,484 tons, 8.8 %
	Hull, fittings & equipment: 14,423 tons, 36.3 %
	Fuel, ammunition & stores: 4,280 tons, 10.8 %
	Miscellaneous weights: 400 tons, 1.0 %
	   - Hull below water: 200 tons
	   - Above deck: 200 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  67,559 lbs / 30,644 Kg = 47.5 x 14.2 " / 360 mm shells or 11.3 torpedoes
	Stability (Unstable if below 1.00): 1.11
	Metacentric height 6.0 ft / 1.8 m
	Roll period: 16.9 seconds
	Steadiness	- As gun platform (Average = 50 %): 62 %
			- Recoil effect (Restricted arc if above 1.00): 0.61
	Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
	Hull has a flush deck,
	  a straight bulbous bow and large transom stern
	Block coefficient (normal/deep): 0.548 / 0.555
	Length to Beam Ratio: 8.40 : 1
	'Natural speed' for length: 33.09 kts
	Power going to wave formation at top speed: 48 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 5.00 degrees
	Stern overhang: 3.28 ft / 1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  32.15 ft / 9.80 m,  24.61 ft / 7.50 m
	   - Forward deck:	30.00 %,  24.61 ft / 7.50 m,  21.33 ft / 6.50 m
	   - Aft deck:	35.00 %,  21.33 ft / 6.50 m,  21.33 ft / 6.50 m
	   - Quarter deck:	15.00 %,  21.33 ft / 6.50 m,  21.33 ft / 6.50 m
	   - Average freeboard:		23.08 ft / 7.03 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 89.8 %
		- Above water (accommodation/working, high = better): 176.5 %
	Waterplane Area: 59,011 Square feet or 5,482 Square metres
	Displacement factor (Displacement / loading): 115 %
	Structure weight / hull surface area: 185 lbs/sq ft or 904 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.98
		- Longitudinal: 1.12
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily

200 Tons (Additional) Above Deck:
=====================
-Flag Facilities (100 Tons)
-2 Heavy Cranes (2*25=50 Tons)
-2 Rotating Compressed Air Catapults (2*25=50 Tons)

200 Tons (Additional) in the Hull Above Waterline:
=====================
-4 Seaplanes with accompanying hangars (4*(30+20))

Split Barbette (Mean: 300mm):
=====================
400mm above Armored Deck
200mm below Armored Deck

TDS: 5m/side; 70mm additional armored bulkhead divided into 20-20-30 mm with void-liquid-void format.