CRNS Ignis - Penultimate Battleship 1942

CRNS Ignis, Calder Republic Super Battleship laid down 1942 (Engine 1946)

Displacement:
	68,367 t light; 72,276 t standard; 75,950 t normal; 78,889 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(990.99 ft / 971.13 ft) x 126.64 ft x (38.06 / 39.24 ft)
	(302.05 m / 296.00 m) x 38.60 m  x (11.60 / 11.96 m)

Armament:
      8 - 19.69" / 500 mm 50.0 cal guns - 3,900.00lbs / 1,769.01kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1942 Model
	  3 x 3-gun mounts on centreline ends, majority forward
      24 - 5.12" / 130 mm 40.0 cal guns - 64.25lbs / 29.14kg shells, 600 per gun
	  Breech loading guns in deck and hoist mounts, 1932 Model
	  10 x 2-gun mounts on sides, evenly spread
		4 raised mounts
	  2 x 2-gun mounts on centreline ends, evenly spread
		2 double raised mounts
      56 - 1.46" / 37.0 mm 69.0 cal guns - 1.73lbs / 0.78kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1928 Model
	  8 x Quad mounts on sides, evenly spread
	  6 x Quad mounts on sides, evenly spread
		6 double raised mounts
      40 - 0.79" / 20.0 mm 56.0 cal guns - 0.26lbs / 0.12kg shells, 6,000 per gun
	  Anti-air guns in deck mounts, 1936 Model
	  40 x Single mounts on sides, evenly spread
		4 raised mounts
      Weight of broadside 32,849 lbs / 14,900 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	19.7" / 500 mm	592.39 ft / 180.56 m	14.76 ft / 4.50 m
	Ends:	Unarmoured
	  Main Belt covers 94 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		2.95" / 75 mm	592.39 ft / 180.56 m	26.25 ft / 8.00 m
	Beam between torpedo bulkheads 93.83 ft / 28.60 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	19.7" / 500 mm	0.87" / 22 mm		15.0" / 380 mm
	2nd:	3.00" / 76 mm	2.01" / 51 mm		3.00" / 76 mm
	3rd:	0.50" / 13 mm	      -			      -
	4th:	0.50" / 13 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 11.81" / 300 mm
	Forecastle: 2.56" / 65 mm  Quarter deck: 2.56" / 65 mm

   - Conning towers: Forward 13.00" / 330 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Electric motors, 40 shafts, 251,170 shp / 187,373 Kw = 31.70 kts
	Range 8,000nm at 16.00 kts
	Bunker at max displacement = 6,613 tons

Complement:
	2,286 - 2,973

Cost:
	£42.993 million / $171.972 million

Distribution of weights at normal displacement:
	Armament: 6,845 tons, 9.0 %
	   - Guns: 6,845 tons, 9.0 %
	Armour: 29,042 tons, 38.2 %
	   - Belts: 7,406 tons, 9.8 %
	   - Torpedo bulkhead: 1,699 tons, 2.2 %
	   - Armament: 3,558 tons, 4.7 %
	   - Armour Deck: 15,876 tons, 20.9 %
	   - Conning Tower: 502 tons, 0.7 %
	Machinery: 6,273 tons, 8.3 %
	Hull, fittings & equipment: 25,967 tons, 34.2 %
	Fuel, ammunition & stores: 7,583 tons, 10.0 %
	Miscellaneous weights: 240 tons, 0.3 %
	   - On freeboard deck: 100 tons
	   - Above deck: 140 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  112,575 lbs / 51,063 Kg = 29.5 x 19.7 " / 500 mm shells or 16.8 torpedoes
	Stability (Unstable if below 1.00): 1.22
	Metacentric height 10.2 ft / 3.1 m
	Roll period: 16.6 seconds
	Steadiness	- As gun platform (Average = 50 %): 65 %
			- Recoil effect (Restricted arc if above 1.00): 0.58
	Seaboat quality  (Average = 1.00): 1.29

Hull form characteristics:
	Hull has a flush deck,
	  a normal bow and a round stern
	Block coefficient (normal/deep): 0.568 / 0.572
	Length to Beam Ratio: 7.67 : 1
	'Natural speed' for length: 31.16 kts
	Power going to wave formation at top speed: 49 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 22.00 degrees
	Stern overhang: 7.00 ft / 2.13 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	19.50 %,  31.82 ft / 9.70 m,  24.93 ft / 7.60 m
	   - Forward deck:	42.00 %,  24.93 ft / 7.60 m,  26.90 ft / 8.20 m
	   - Aft deck:	19.00 %,  26.90 ft / 8.20 m,  26.90 ft / 8.20 m
	   - Quarter deck:	19.50 %,  26.90 ft / 8.20 m,  26.90 ft / 8.20 m
	   - Average freeboard:		26.64 ft / 8.12 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 93.2 %
		- Above water (accommodation/working, high = better): 190.7 %
	Waterplane Area: 87,286 Square feet or 8,109 Square metres
	Displacement factor (Displacement / loading): 101 %
	Structure weight / hull surface area: 236 lbs/sq ft or 1,154 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.98
		- Longitudinal: 1.19
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily