Yam Momiji RFP - Calderan BC Bid

MNS Kana, Calder - Momiji Export Battlecruiser laid down 1920

Displacement:
	27,815 t light; 29,093 t standard; 32,100 t normal; 34,505 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(721.49 ft / 711.94 ft) x 91.86 ft x (30.68 / 32.50 ft)
	(219.91 m / 217.00 m) x 28.00 m  x (9.35 / 9.91 m)

Armament:
      8 - 12.01" / 305 mm 50.0 cal guns - 870.83lbs / 395.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1915 Model
	  2 x 2-gun mounts on centreline ends, evenly spread
		1 raised mount - superfiring
	  2 x 2-gun mounts on centreline ends, evenly spread
		1 raised mount aft - superfiring
      12 - 6.00" / 152 mm 45.0 cal guns - 100.00lbs / 45.36kg shells, 250 per gun
	  Breech loading guns in casemate mounts, 1913 Model
	  8 x Single mounts on sides, forward deck aft
		8 hull mounts in casemates- Limited use in heavy seas
	  4 x Single mounts on sides, aft deck forward
      6 - 4.00" / 102 mm 45.0 cal guns - 33.51lbs / 15.20kg shells, 400 per gun
	  Quick firing guns in deck mounts, 1915 Model
	  6 x Single mounts on sides, evenly spread
      12 - 3.00" / 76.2 mm 50.0 cal guns - 14.29lbs / 6.48kg shells, 400 per gun
	  Anti-air guns in deck mounts, 1910 Model
	  12 x Single mounts on sides, evenly spread
		4 raised mounts
      Weight of broadside 8,539 lbs / 3,873 kg
      Main Torpedoes
      4 - 21.0" / 533 mm, 23.10 ft / 7.04 m torpedoes - 1.486 t each, 5.944 t total
	submerged side tubes
      2nd Torpedoes
      4 - 21.0" / 533 mm, 23.10 ft / 7.04 m torpedoes - 1.486 t each, 5.944 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	10.6" / 270 mm	469.88 ft / 143.22 m	16.40 ft / 5.00 m
	Ends:	1.18" / 30 mm	242.03 ft / 73.77 m	16.40 ft / 5.00 m
	  Main Belt covers 102 % of normal length
	  Main Belt inclined -5.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		2.95" / 75 mm	469.88 ft / 143.22 m	28.35 ft / 8.64 m
	Beam between torpedo bulkheads 59.71 ft / 18.20 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	14.2" / 360 mm	7.48" / 190 mm		10.6" / 270 mm
	2nd:	4.53" / 115 mm	      -			      -
	3rd:	0.50" / 13 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 14.17" / 360 mm, Aft 8.07" / 205 mm

Machinery:
	Oil fired boilers, steam turbines,
	Electric motors, 4 shafts, 115,324 shp / 86,032 Kw = 29.00 kts
	Range 10,500nm at 15.00 kts
	Bunker at max displacement = 5,412 tons

Complement:
	1,198 - 1,558

Cost:
	£5.623 million / $22.493 million

Distribution of weights at normal displacement:
	Armament: 2,065 tons, 6.4 %
	   - Guns: 2,046 tons, 6.4 %
	   - Weapons: 19 tons, 0.1 %
	Armour: 11,918 tons, 37.1 %
	   - Belts: 3,636 tons, 11.3 %
	   - Torpedo bulkhead: 1,455 tons, 4.5 %
	   - Armament: 1,890 tons, 5.9 %
	   - Armour Deck: 4,452 tons, 13.9 %
	   - Conning Towers: 484 tons, 1.5 %
	Machinery: 4,032 tons, 12.6 %
	Hull, fittings & equipment: 9,594 tons, 29.9 %
	Fuel, ammunition & stores: 4,285 tons, 13.3 %
	Miscellaneous weights: 205 tons, 0.6 %
	   - On freeboard deck: 100 tons
	   - Above deck: 105 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  47,858 lbs / 21,708 Kg = 55.3 x 12.0 " / 305 mm shells or 7.1 torpedoes
	Stability (Unstable if below 1.00): 1.18
	Metacentric height 6.0 ft / 1.8 m
	Roll period: 15.8 seconds
	Steadiness	- As gun platform (Average = 50 %): 53 %
			- Recoil effect (Restricted arc if above 1.00): 0.42
	Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a straight bulbous bow and a cruiser stern
	Block coefficient (normal/deep): 0.560 / 0.568
	Length to Beam Ratio: 7.75 : 1
	'Natural speed' for length: 26.68 kts
	Power going to wave formation at top speed: 52 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 22.00 degrees
	Stern overhang: -4.92 ft / -1.50 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	17.00 %,  23.62 ft / 7.20 m,  23.62 ft / 7.20 m
	   - Forward deck:	35.00 %,  23.62 ft / 7.20 m,  23.62 ft / 7.20 m
	   - Aft deck:	31.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
	   - Quarter deck:	17.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
	   - Average freeboard:		19.84 ft / 6.05 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 101.4 %
		- Above water (accommodation/working, high = better): 145.9 %
	Waterplane Area: 46,073 Square feet or 4,280 Square metres
	Displacement factor (Displacement / loading): 114 %
	Structure weight / hull surface area: 161 lbs/sq ft or 786 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.98
		- Longitudinal: 1.14
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room

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Misc Weight:
x1 Flag Facilities = 100 tons
x1 Rotating Catapult = 20 tons AD
x1 Heavy Crane = 25 tons AD
x3 Floatplanes = 60 tons AD