HIMS Dunburg - Citadel-class Dreadnought

HIMS Dunburg, Citadon Empire Citadel-class Battleship laid down 1914

Displacement:
	23,411 t light; 24,833 t standard; 26,644 t normal; 28,094 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(600.00 ft / 594.00 ft) x 98.00 ft x (30.00 / 31.27 ft)
	(182.88 m / 181.05 m) x 29.87 m  x (9.14 / 9.53 m)

Armament:
      8 - 13.50" / 343 mm 50.0 cal guns - 1,240.67lbs / 562.76kg shells, 120 per gun
	  Breech loading guns in turret on barbette mounts, 1908 Model
	  2 x Twin mounts on centreline, forward deck forward
		1 raised mount - superfiring
	  2 x Twin mounts on centreline, aft deck aft
		1 raised mount aft - superfiring
      8 - 6.00" / 152 mm 45.0 cal guns - 100.00lbs / 45.36kg shells, 200 per gun
	  Breech loading guns in casemate mounts, 1913 Model
	  4 x Single mounts on sides, forward deck forward
		4 hull mounts in casemates- Limited use in heavy seas
	  4 x Single mounts on sides, aft deck aft
      12 - 5.25" / 133 mm 50.0 cal guns - 72.75lbs / 33.00kg shells, 200 per gun
	  Quick firing guns in casemate mounts, 1905 Model
	  6 x Single mounts on sides, forward deck aft
		6 hull mounts in casemates- Limited use in heavy seas
	  6 x Single mounts on sides, aft deck forward
      10 - 3.00" / 76.2 mm 50.0 cal guns - 12.50lbs / 5.67kg shells, 600 per gun
	  Anti-air guns in deck mounts, 1910 Model
	  10 x Single mounts on sides, evenly spread
		4 raised mounts
      Weight of broadside 11,723 lbs / 5,318 kg
      Main Torpedoes
      2 - 21.0" / 533 mm, 25.00 ft / 7.62 m torpedoes - 1.575 t each, 3.149 t total
	submerged bow & stern tubes
      2nd Torpedoes
      2 - 21.0" / 533 mm, 25.00 ft / 7.62 m torpedoes - 1.575 t each, 3.149 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	12.0" / 305 mm	402.00 ft / 122.53 m	12.50 ft / 3.81 m
	Ends:	2.00" / 51 mm	192.00 ft / 58.52 m	12.50 ft / 3.81 m
	Upper:	4.00" / 102 mm	402.00 ft / 122.53 m	8.00 ft / 2.44 m
	  Main Belt covers 104 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		3.50" / 89 mm	402.00 ft / 122.53 m	27.50 ft / 8.38 m
	Beam between torpedo bulkheads 64.00 ft / 19.51 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	14.0" / 356 mm	8.00" / 203 mm		12.0" / 305 mm
	2nd:	4.00" / 102 mm	      -			      -
	3rd:	2.00" / 51 mm	      -			      -

   - Protected deck - multiple decks:
	For and Aft decks: 3.50" / 89 mm
	Forecastle: 1.00" / 25 mm  Quarter deck: 1.00" / 25 mm

   - Conning towers: Forward 14.00" / 356 mm, Aft 8.00" / 203 mm

Machinery:
	Coal and oil fired boilers, steam turbines,
	Direct drive, 3 shafts, 51,000 shp / 38,046 Kw = 23.76 kts
	Range 8,500nm at 11.00 kts
	Bunker at max displacement = 3,261 tons (85% coal)

Complement:
	1,042 - 1,355

Cost:
	£2.921 million / $11.683 million

Distribution of weights at normal displacement:
	Armament: 2,336 tons, 8.8 %
	   - Guns: 2,326 tons, 8.7 %
	   - Weapons: 10 tons, 0.0 %
	Armour: 9,725 tons, 36.5 %
	   - Belts: 3,348 tons, 12.6 %
	   - Torpedo bulkhead: 1,432 tons, 5.4 %
	   - Armament: 2,232 tons, 8.4 %
	   - Armour Deck: 2,290 tons, 8.6 %
	   - Conning Towers: 423 tons, 1.6 %
	Machinery: 2,129 tons, 8.0 %
	Hull, fittings & equipment: 9,121 tons, 34.2 %
	Fuel, ammunition & stores: 3,234 tons, 12.1 %
	Miscellaneous weights: 100 tons, 0.4 %
	   - On freeboard deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  38,435 lbs / 17,434 Kg = 31.2 x 13.5 " / 343 mm shells or 6.2 torpedoes
	Stability (Unstable if below 1.00): 1.18
	Metacentric height 6.6 ft / 2.0 m
	Roll period: 16.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 63 %
			- Recoil effect (Restricted arc if above 1.00): 0.51
	Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.534 / 0.540
	Length to Beam Ratio: 6.06 : 1
	'Natural speed' for length: 24.37 kts
	Power going to wave formation at top speed: 49 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -8.00 degrees
	Stern overhang: -6.00 ft / -1.83 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	16.30 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
	   - Forward deck:	38.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
	   - Aft deck:	29.40 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
	   - Quarter deck:	16.30 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
	   - Average freeboard:		18.17 ft / 5.54 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 103.0 %
		- Above water (accommodation/working, high = better): 133.6 %
	Waterplane Area: 40,022 Square feet or 3,718 Square metres
	Displacement factor (Displacement / loading): 105 %
	Structure weight / hull surface area: 183 lbs/sq ft or 893 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.95
		- Longitudinal: 1.65
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily