Domei-Class Battleship [1891] (Taishe)

Domei-Class, Taishe Dynasty Battleship laid down 1891

Displacement:
	11,926 t light; 12,700 t standard; 14,276 t normal; 15,537 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(367.45 ft / 360.89 ft) x 82.02 ft x (26.25 / 28.21 ft)
	(112.00 m / 110.00 m) x 25.00 m  x (8.00 / 8.60 m)

Armament:
      4 - 12.60" / 320 mm 35.0 cal guns - 937.48lbs / 425.23kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1890 Model
	  2 x Twin mounts on centreline, evenly spread
      16 - 5.98" / 152 mm 35.0 cal guns - 98.95lbs / 44.88kg shells, 250 per gun
	  Quick firing guns in casemate mounts, 1888 Model
	  16 x Single mounts on sides, evenly spread
		4 hull mounts in casemates- Limited use in all but light seas
      20 - 2.95" / 75.0 mm 40.0 cal guns - 12.34lbs / 5.60kg shells, 300 per gun
	  Quick firing guns in deck mounts, 1890 Model
	  16 x Single mounts on sides, evenly spread
		12 raised mounts
	  4 x Single mounts on centreline, evenly spread
      48 - 1.46" / 37.0 mm 30.0 cal guns - 1.42lbs / 0.65kg shells, 500 per gun
	  Quick firing guns in deck mounts, 1890 Model
	  6 x 2 row octuple mounts on sides, evenly spread
      Weight of broadside 5,648 lbs / 2,562 kg
      Main Torpedoes
      4 - 15.0" / 380 mm, 13.12 ft / 4.00 m torpedoes - 0.244 t each, 0.977 t total
	submerged bow & stern tubes
      2nd Torpedoes
      16 - 15.0" / 380 mm, 13.12 ft / 4.00 m torpedoes - 0.244 t each, 3.907 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	18.1" / 460 mm	234.58 ft / 71.50 m	10.86 ft / 3.31 m
	Ends:	5.91" / 150 mm	126.28 ft / 38.49 m	10.86 ft / 3.31 m
	Upper:	5.91" / 150 mm	234.58 ft / 71.50 m	8.01 ft / 2.44 m
	  Main Belt covers 100 % of normal length
	  Main Belt inclined 5.00 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.97" / 50 mm	234.58 ft / 71.50 m	25.13 ft / 7.66 m
	Beam between torpedo bulkheads 49.21 ft / 15.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	15.0" / 380 mm	9.84" / 250 mm		15.0" / 380 mm
	2nd:	5.91" / 150 mm	3.94" / 100 mm		5.91" / 150 mm
	3rd:	0.98" / 25 mm	      -			      -
	4th:	0.98" / 25 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 2.95" / 75 mm
	Forecastle: 2.95" / 75 mm  Quarter deck: 2.95" / 75 mm

   - Conning towers: Forward 14.96" / 380 mm, Aft 8.27" / 210 mm

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 7,380 ihp / 5,506 Kw = 15.00 kts
	Range 8,000nm at 10.00 kts
	Bunker at max displacement = 2,837 tons (100% coal)

Complement:
	652 - 848

Cost:
	£0.950 million / $3.799 million

Distribution of weights at normal displacement:
	Armament: 782 tons, 5.5 %
	   - Guns: 775 tons, 5.4 %
	   - Weapons: 7 tons, 0.0 %
	Armour: 6,204 tons, 43.5 %
	   - Belts: 2,986 tons, 20.9 %
	   - Torpedo bulkhead: 429 tons, 3.0 %
	   - Armament: 1,253 tons, 8.8 %
	   - Armour Deck: 1,241 tons, 8.7 %
	   - Conning Towers: 295 tons, 2.1 %
	Machinery: 1,342 tons, 9.4 %
	Hull, fittings & equipment: 3,499 tons, 24.5 %
	Fuel, ammunition & stores: 2,350 tons, 16.5 %
	Miscellaneous weights: 100 tons, 0.7 %
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  25,238 lbs / 11,448 Kg = 25.2 x 12.6 " / 320 mm shells or 29.1 torpedoes
	Stability (Unstable if below 1.00): 1.47
	Metacentric height 7.2 ft / 2.2 m
	Roll period: 12.8 seconds
	Steadiness	- As gun platform (Average = 50 %): 93 %
			- Recoil effect (Restricted arc if above 1.00): 0.29
	Seaboat quality  (Average = 1.00): 1.86

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.643 / 0.651
	Length to Beam Ratio: 4.40 : 1
	'Natural speed' for length: 19.00 kts
	Power going to wave formation at top speed: 45 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -4.00 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 %,  19.69 ft / 6.00 m,  16.40 ft / 5.00 m
	   - Forward deck:	30.00 %,  16.40 ft / 5.00 m,  13.12 ft / 4.00 m
	   - Aft deck:	35.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
	   - Quarter deck:	15.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
	   - Average freeboard:		14.53 ft / 4.43 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 92.7 %
		- Above water (accommodation/working, high = better): 91.4 %
	Waterplane Area: 22,531 Square feet or 2,093 Square metres
	Displacement factor (Displacement / loading): 116 %
	Structure weight / hull surface area: 141 lbs/sq ft or 689 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.90
		- Longitudinal: 2.46
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Adequate accommodation and workspace room
	Ship has slow, easy roll, a good, steady gun platform
	Excellent seaboat, comfortable, can fire her guns in the heaviest weather