Okahua-Class Battleship [1918] (Miao)

Okahua-Class, Princedom of Miao Battleship laid down 1918

Displacement:
	13,133 t light; 14,000 t standard; 15,209 t normal; 16,176 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(431.28 ft / 426.51 ft) x 78.74 ft x (26.25 / 27.62 ft)
	(131.45 m / 130.00 m) x 24.00 m  x (8.00 / 8.42 m)

Armament:
      8 - 11.02" / 280 mm 55.0 cal guns - 738.55lbs / 335.00kg shells, 120 per gun
	  Breech loading guns in turret on barbette mounts, 1905 Model
	  4 x 2-gun mounts on centreline ends, evenly spread
		2 raised mounts - superfiring
      13 - 5.91" / 150 mm 50.0 cal guns - 110.23lbs / 50.00kg shells, 200 per gun
	  Breech loading guns in casemate mounts, 1914 Model
	  12 x Single mounts on sides, evenly spread
	  1 x Single mount on centreline, forward deck forward
      4 - 2.95" / 75.0 mm 52.0 cal guns - 13.75lbs / 6.23kg shells, 300 per gun
	  Anti-air guns in deck mounts, 1914 Model
	  4 x Single mounts on sides, evenly spread
		4 raised mounts
      64 - 0.63" / 16.0 mm 120.0 cal guns - 0.15lbs / 0.07kg shells, 200 per gun
	  Muzzle loading guns in deck mounts, 1906 Model
	  8 x 2 row octuple mounts on sides, evenly spread
      Weight of broadside 7,406 lbs / 3,359 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	12.6" / 320 mm	277.23 ft / 84.50 m	10.66 ft / 3.25 m
	Ends:	6.30" / 160 mm	149.25 ft / 45.49 m	10.66 ft / 3.25 m
	Upper:	4.72" / 120 mm	277.23 ft / 84.50 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	277.23 ft / 84.50 m	24.80 ft / 7.56 m
	Beam between torpedo bulkheads 52.49 ft / 16.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	12.6" / 320 mm	7.09" / 180 mm		11.0" / 280 mm
	2nd:	1.97" / 50 mm	      -			3.94" / 100 mm

   - Armoured deck - multiple decks:
	For and Aft decks: 3.94" / 100 mm
	Forecastle: 0.00" / 0 mm  Quarter deck: 3.94" / 100 mm

   - Conning towers: Forward 11.02" / 280 mm, Aft 0.00" / 0 mm

Machinery:
	Coal and oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 26,017 shp / 19,409 Kw = 21.00 kts
	Range 5,000nm at 15.00 kts
	Bunker at max displacement = 2,176 tons (50% coal)

Complement:
	684 - 890

Cost:
	£2.680 million / $10.719 million

Distribution of weights at normal displacement:
	Armament: 1,841 tons, 12.1 %
	   - Guns: 1,841 tons, 12.1 %
	Armour: 6,343 tons, 41.7 %
	   - Belts: 2,513 tons, 16.5 %
	   - Torpedo bulkhead: 501 tons, 3.3 %
	   - Armament: 1,533 tons, 10.1 %
	   - Armour Deck: 1,650 tons, 10.8 %
	   - Conning Tower: 146 tons, 1.0 %
	Machinery: 983 tons, 6.5 %
	Hull, fittings & equipment: 3,966 tons, 26.1 %
	Fuel, ammunition & stores: 2,076 tons, 13.7 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  20,761 lbs / 9,417 Kg = 31.0 x 11.0 " / 280 mm shells or 4.2 torpedoes
	Stability (Unstable if below 1.00): 1.11
	Metacentric height 4.2 ft / 1.3 m
	Roll period: 16.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 51 %
			- Recoil effect (Restricted arc if above 1.00): 0.63
	Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
	Hull has a flush deck,
	  a straight bulbous bow and a cruiser stern
	Block coefficient (normal/deep): 0.604 / 0.610
	Length to Beam Ratio: 5.42 : 1
	'Natural speed' for length: 20.65 kts
	Power going to wave formation at top speed: 55 %
	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 %,  21.33 ft / 6.50 m,  18.04 ft / 5.50 m
	   - Forward deck:	30.00 %,  18.04 ft / 5.50 m,  14.76 ft / 4.50 m
	   - Aft deck:	35.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
	   - Quarter deck:	15.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
	   - Average freeboard:		16.17 ft / 4.93 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 99.4 %
		- Above water (accommodation/working, high = better): 106.6 %
	Waterplane Area: 24,652 Square feet or 2,290 Square metres
	Displacement factor (Displacement / loading): 99 %
	Structure weight / hull surface area: 156 lbs/sq ft or 763 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.93
		- Longitudinal: 2.01
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Adequate accommodation and workspace room