CRNS Virtus 1921 Battleship

CRNS Virtus, Calder Republic Battleship laid down 1921 (Engine 1923)

Displacement:
	38,468 t light; 40,651 t standard; 42,667 t normal; 44,279 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(782.90 ft / 767.72 ft) x 113.19 ft x (35.43 / 36.42 ft)
	(238.63 m / 234.00 m) x 34.50 m  x (10.80 / 11.10 m)

Armament:
      9 - 16.14" / 410 mm 45.0 cal guns - 2,120.85lbs / 962.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1913 Model
	  3 x 3-gun mounts on centreline ends, majority forward
		1 raised mount - superfiring
      14 - 5.12" / 130 mm 50.0 cal guns - 70.97lbs / 32.19kg shells, 400 per gun
	  Quick firing guns in casemate mounts, 1914 Model
	  14 x Single mounts on sides, evenly spread
		14 hull mounts in casemates- Limited use in heavy seas
      8 - 2.95" / 75.0 mm 50.0 cal guns - 13.62lbs / 6.18kg shells, 800 per gun
	  Anti-air guns in deck mounts, 1921 Model
	  8 x Single mounts on sides, evenly spread
		4 raised mounts
      Weight of broadside 20,190 lbs / 9,158 kg
      Main Torpedoes
      2 - 21.0" / 533 mm, 23.10 ft / 7.04 m torpedoes - 1.490 t each, 2.980 t total
	submerged side tubes
      2nd Torpedoes
      2 - 21.0" / 533 mm, 23.10 ft / 7.04 m torpedoes - 1.490 t each, 2.980 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	11.0" / 280 mm	475.98 ft / 145.08 m	12.76 ft / 3.89 m
	Ends:	2.56" / 65 mm	291.70 ft / 88.91 m	12.76 ft / 3.89 m
	  Main Belt covers 95 % of normal length
	  Main Belt inclined -11.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		2.95" / 75 mm	475.98 ft / 145.08 m	30.64 ft / 9.34 m
	Beam between torpedo bulkheads 80.38 ft / 24.50 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	15.7" / 400 mm	8.66" / 220 mm		13.0" / 330 mm
	2nd:	5.51" / 140 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 6.30" / 160 mm
	Forecastle: 3.54" / 90 mm  Quarter deck: 3.54" / 90 mm

   - Conning towers: Forward 11.81" / 300 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Electric motors, 4 shafts, 108,697 shp / 81,088 Kw = 27.60 kts
	Range 8,000nm at 13.00 kts
	Bunker at max displacement = 3,628 tons

Complement:
	1,483 - 1,929

Cost:
	£9.399 million / $37.597 million

Distribution of weights at normal displacement:
	Armament: 3,985 tons, 9.3 %
	   - Guns: 3,975 tons, 9.3 %
	   - Weapons: 10 tons, 0.0 %
	Armour: 14,539 tons, 34.1 %
	   - Belts: 3,253 tons, 7.6 %
	   - Torpedo bulkhead: 1,594 tons, 3.7 %
	   - Armament: 3,305 tons, 7.7 %
	   - Armour Deck: 6,076 tons, 14.2 %
	   - Conning Tower: 311 tons, 0.7 %
	Machinery: 3,633 tons, 8.5 %
	Hull, fittings & equipment: 16,162 tons, 37.9 %
	Fuel, ammunition & stores: 4,198 tons, 9.8 %
	Miscellaneous weights: 150 tons, 0.4 %
	   - On freeboard deck: 150 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  62,560 lbs / 28,377 Kg = 29.7 x 16.1 " / 410 mm shells or 9.6 torpedoes
	Stability (Unstable if below 1.00): 1.17
	Metacentric height 8.0 ft / 2.5 m
	Roll period: 16.8 seconds
	Steadiness	- As gun platform (Average = 50 %): 66 %
			- Recoil effect (Restricted arc if above 1.00): 0.58
	Seaboat quality  (Average = 1.00): 1.32

Hull form characteristics:
	Hull has a flush deck,
	  a straight bulbous bow and a round stern
	Block coefficient (normal/deep): 0.485 / 0.490
	Length to Beam Ratio: 6.78 : 1
	'Natural speed' for length: 27.71 kts
	Power going to wave formation at top speed: 47 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 22.00 degrees
	Stern overhang: 4.05 ft / 1.23 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	19.00 %,  27.56 ft / 8.40 m,  21.00 ft / 6.40 m
	   - Forward deck:	42.00 %,  21.00 ft / 6.40 m,  22.31 ft / 6.80 m
	   - Aft deck:	20.00 %,  22.31 ft / 6.80 m,  22.31 ft / 6.80 m
	   - Quarter deck:	19.00 %,  22.31 ft / 6.80 m,  22.31 ft / 6.80 m
	   - Average freeboard:		22.28 ft / 6.79 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 95.3 %
		- Above water (accommodation/working, high = better): 160.4 %
	Waterplane Area: 57,120 Square feet or 5,307 Square metres
	Displacement factor (Displacement / loading): 108 %
	Structure weight / hull surface area: 224 lbs/sq ft or 1,092 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.95
		- Longitudinal: 1.53
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily