Castle-Class Protected Cruiser [1892] (Citadon)

Castle-Class, Citadon Empire Protected Cruiser laid down 1892

Displacement:
	4,624 t light; 4,900 t standard; 5,732 t normal; 6,398 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(352.00 ft / 350.00 ft) x 50.00 ft x (21.00 / 22.92 ft)
	(107.29 m / 106.68 m) x 15.24 m  x (6.40 / 6.98 m)

Armament:
      1 - 13.50" / 343 mm 40.0 cal gun - 1,179.03lbs / 534.80kg shells, 60 per gun
	  Breech loading gun in turret on barbette mount, 1892 Model
	  1 x Single mount on centreline, forward deck centre
      2 - 7.00" / 178 mm 47.0 cal guns - 178.40lbs / 80.92kg shells, 150 per gun
	  Breech loading guns in turret on barbette mount, 1890 Model
	  1 x Single mount on centreline, aft deck aft
      14 - 4.75" / 121 mm 45.0 cal guns - 50.71lbs / 23.00kg shells, 200 per gun
	  Quick firing guns in deck mounts, 1882 Model
	  14 x Single mounts on sides, evenly spread
      28 - 1.80" / 45.7 mm 45.0 cal guns - 2.80lbs / 1.27kg shells, 300 per gun
	  Quick firing guns in deck mounts, 1884 Model
	  14 x Twin mounts on sides, evenly spread
		14 raised mounts
      Weight of broadside 2,324 lbs / 1,054 kg
      Main Torpedoes
      4 - 18.5" / 470 mm, 10.00 ft / 3.05 m torpedoes - 0.295 t each, 1.180 t total
	In 4 sets of deck mounted carriage/fixed tubes
      2nd Torpedoes
      8 - 18.5" / 470 mm, 10.00 ft / 3.05 m torpedoes - 0.295 t each, 2.359 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Ends:	Unarmoured

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.00" / 25 mm	252.00 ft / 76.81 m	19.28 ft / 5.88 m
	Beam between torpedo bulkheads 49.00 ft / 14.94 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	12.0" / 305 mm	5.00" / 127 mm		10.0" / 254 mm
	2nd:	6.00" / 152 mm	2.00" / 51 mm		6.00" / 152 mm
	3rd:	2.00" / 51 mm	      -			      -
	4th:	0.50" / 13 mm	      -			      -

   - Protected deck - single deck:
	For and Aft decks: 2.00" / 51 mm
	Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 8.00" / 203 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 7,927 ihp / 5,914 Kw = 18.00 kts
	Range 7,500nm at 10.00 kts
	Bunker at max displacement = 1,498 tons (100% coal)

Complement:
	329 - 428

Cost:
	£0.531 million / $2.125 million

Distribution of weights at normal displacement:
	Armament: 469 tons, 8.2 %
	   - Guns: 465 tons, 8.1 %
	   - Weapons: 4 tons, 0.1 %
	Armour: 1,072 tons, 18.7 %
	   - Torpedo bulkhead: 180 tons, 3.1 %
	   - Armament: 383 tons, 6.7 %
	   - Armour Deck: 454 tons, 7.9 %
	   - Conning Tower: 55 tons, 1.0 %
	Machinery: 1,416 tons, 24.7 %
	Hull, fittings & equipment: 1,668 tons, 29.1 %
	Fuel, ammunition & stores: 1,108 tons, 19.3 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  4,998 lbs / 2,267 Kg = 4.1 x 13.5 " / 343 mm shells or 4.8 torpedoes
	Stability (Unstable if below 1.00): 1.27
	Metacentric height 2.7 ft / 0.8 m
	Roll period: 12.7 seconds
	Steadiness	- As gun platform (Average = 50 %): 89 %
			- Recoil effect (Restricted arc if above 1.00): 0.83
	Seaboat quality  (Average = 1.00): 1.77

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.546 / 0.558
	Length to Beam Ratio: 7.00 : 1
	'Natural speed' for length: 18.71 kts
	Power going to wave formation at top speed: 46 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -4.00 degrees
	Stern overhang: -2.00 ft / -0.61 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  19.00 ft / 5.79 m,  16.00 ft / 4.88 m
	   - Forward deck:	30.00 %,  16.00 ft / 4.88 m,  13.00 ft / 3.96 m
	   - Aft deck:	35.00 %,  13.00 ft / 3.96 m,  13.00 ft / 3.96 m
	   - Quarter deck:	15.00 %,  13.00 ft / 3.96 m,  13.00 ft / 3.96 m
	   - Average freeboard:		14.29 ft / 4.36 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 110.7 %
		- Above water (accommodation/working, high = better): 96.0 %
	Waterplane Area: 12,167 Square feet or 1,130 Square metres
	Displacement factor (Displacement / loading): 104 %
	Structure weight / hull surface area: 107 lbs/sq ft or 521 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.90
		- Longitudinal: 2.52
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Adequate accommodation and workspace room
	Ship has slow, easy roll, a good, steady gun platform
	Excellent seaboat, comfortable, can fire her guns in the heaviest weather