Hongjin-Class Armored Cruiser [1901] (Seondok)

Hongjin-Class, Seondok County Armored Cruiser laid down 1901

Displacement:
	9,606 t light; 10,000 t standard; 10,738 t normal; 11,328 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(498.69 ft / 492.13 ft) x 65.62 ft x (22.97 / 23.92 ft)
	(152.00 m / 150.00 m) x 20.00 m  x (7.00 / 7.29 m)

Armament:
      4 - 7.87" / 200 mm 50.0 cal guns - 258.41lbs / 117.21kg shells, 90 per gun
	  Breech loading guns in turret on barbette mounts, 1900 Model
	  2 x Twin mounts on centreline, evenly spread
      14 - 5.71" / 145 mm 45.0 cal guns - 93.81lbs / 42.55kg shells, 150 per gun
	  Quick firing guns in casemate mounts, 1898 Model
	  14 x Single mounts on sides, evenly spread
      8 - 3.44" / 87.5 mm 40.0 cal guns - 19.59lbs / 8.89kg shells, 200 per gun
	  Quick firing guns in deck mounts, 1894 Model
	  8 x Single mounts on sides, evenly spread
		8 raised mounts
      12 - 0.98" / 25.0 mm 55.0 cal guns - 0.51lbs / 0.23kg shells, 200 per gun
	  Quick firing guns in deck mounts, 1904 Model
	  12 x Single mounts on centreline, evenly spread
		12 double raised mounts
      Weight of broadside 2,510 lbs / 1,138 kg
      Main Torpedoes
      4 - 21.7" / 550 mm, 16.40 ft / 5.00 m torpedoes - 0.876 t each, 3.504 t total
	In 4 sets of deck mounted carriage/fixed tubes
      2nd Torpedoes
      4 - 21.7" / 550 mm, 16.40 ft / 5.00 m torpedoes - 0.876 t each, 3.504 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	7.09" / 180 mm	393.70 ft / 120.00 m	9.71 ft / 2.96 m
	Ends:	3.94" / 100 mm	  98.39 ft / 29.99 m	9.71 ft / 2.96 m
	Upper:	3.94" / 100 mm	393.70 ft / 120.00 m	8.01 ft / 2.44 m
	  Main Belt covers 123 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.97" / 50 mm	393.70 ft / 120.00 m	20.34 ft / 6.20 m
	Beam between torpedo bulkheads 54.95 ft / 16.75 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	7.87" / 200 mm	5.91" / 150 mm		7.09" / 180 mm
	2nd:	3.94" / 100 mm	1.97" / 50 mm		3.94" / 100 mm
	3rd:	2.95" / 75 mm	0.98" / 25 mm		      -

   - Armoured deck - multiple decks:
	For and Aft decks: 1.97" / 50 mm
	Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 9.84" / 250 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 18,702 ihp / 13,952 Kw = 21.00 kts
	Range 5,000nm at 10.00 kts
	Bunker at max displacement = 1,329 tons (100% coal)

Complement:
	526 - 685

Cost:
	£0.917 million / $3.666 million

Distribution of weights at normal displacement:
	Armament: 519 tons, 4.8 %
	   - Guns: 510 tons, 4.7 %
	   - Weapons: 9 tons, 0.1 %
	Armour: 3,705 tons, 34.5 %
	   - Belts: 1,744 tons, 16.2 %
	   - Torpedo bulkhead: 583 tons, 5.4 %
	   - Armament: 506 tons, 4.7 %
	   - Armour Deck: 768 tons, 7.2 %
	   - Conning Tower: 103 tons, 1.0 %
	Machinery: 2,877 tons, 26.8 %
	Hull, fittings & equipment: 2,405 tons, 22.4 %
	Fuel, ammunition & stores: 1,132 tons, 10.5 %
	Miscellaneous weights: 100 tons, 0.9 %
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  11,174 lbs / 5,069 Kg = 45.8 x 7.9 " / 200 mm shells or 2.9 torpedoes
	Stability (Unstable if below 1.00): 1.38
	Metacentric height 4.7 ft / 1.4 m
	Roll period: 12.7 seconds
	Steadiness	- As gun platform (Average = 50 %): 82 %
			- Recoil effect (Restricted arc if above 1.00): 0.28
	Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.507 / 0.513
	Length to Beam Ratio: 7.50 : 1
	'Natural speed' for length: 22.18 kts
	Power going to wave formation at top speed: 43 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 4.00 degrees
	Stern overhang: -6.56 ft / -2.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	10.00 %,  19.69 ft / 6.00 m,  18.04 ft / 5.50 m
	   - Forward deck:	30.00 %,  18.04 ft / 5.50 m,  14.76 ft / 4.50 m
	   - Aft deck:	50.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
	   - Quarter deck:	10.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
	   - Average freeboard:		15.65 ft / 4.77 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 123.0 %
		- Above water (accommodation/working, high = better): 119.9 %
	Waterplane Area: 21,649 Square feet or 2,011 Square metres
	Displacement factor (Displacement / loading): 95 %
	Structure weight / hull surface area: 101 lbs/sq ft or 495 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.96
		- Longitudinal: 1.41
		- Overall: 1.00
	Cramped 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