Ulsang-Class Armored Cruiser [1895] (Seondok)

Ulsang-Class, Seondok County Armored Cruiser laid down 1895

Displacement:
	10,173 t light; 10,800 t standard; 11,625 t normal; 12,285 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(421.59 ft / 410.11 ft) x 82.02 ft x (24.61 / 25.64 ft)
	(128.50 m / 125.00 m) x 25.00 m  x (7.50 / 7.82 m)

Armament:
      2 - 8.07" / 205 mm 45.0 cal guns - 265.10lbs / 120.25kg shells, 150 per gun
	  Breech loading guns in turret on barbette mounts, 1892 Model
	  2 x Single mounts on centreline, evenly spread
      8 - 6.10" / 155 mm 40.0 cal guns - 108.91lbs / 49.40kg shells, 200 per gun
	  Quick firing guns in casemate mounts, 1890 Model
	  8 x Single mounts on sides, evenly spread
		8 hull mounts in casemates- Limited use in all but light seas
      14 - 3.44" / 87.5 mm 40.0 cal guns - 19.60lbs / 8.89kg shells, 400 per gun
	  Quick firing guns in deck mounts, 1894 Model
	  14 x Single mounts on sides, evenly spread
      16 - 1.77" / 45.0 mm 20.0 cal guns - 2.49lbs / 1.13kg shells, 750 per gun
	  Quick firing guns in deck mounts, 1894 Model
	  4 x 2 row quad mounts on sides, evenly spread
		4 raised mounts
      8 - 8.07" / 205 mm 45.0 cal guns - 265.10lbs / 120.25kg shells, 150 per gun
	  Breech loading guns in casemate mounts, 1892 Model
	  8 x Single mounts on sides, evenly spread
      Weight of broadside 3,837 lbs / 1,740 kg
      Main Torpedoes
      4 - 19.7" / 500 mm, 9.84 ft / 3.00 m torpedoes - 0.366 t each, 1.462 t total
	submerged bow & stern tubes
      2nd Torpedoes
      8 - 19.7" / 500 mm, 9.84 ft / 3.00 m torpedoes - 0.366 t each, 2.925 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	7.09" / 180 mm	314.96 ft / 96.00 m	10.86 ft / 3.31 m
	Ends:	2.95" / 75 mm	  95.14 ft / 29.00 m	10.86 ft / 3.31 m
	Upper:	5.91" / 150 mm	314.96 ft / 96.00 m	8.01 ft / 2.44 m
	  Main Belt covers 118 % of normal length
	  Main Belt inclined 5.00 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.18" / 30 mm	314.96 ft / 96.00 m	21.52 ft / 6.56 m
	Beam between torpedo bulkheads 72.18 ft / 22.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	7.87" / 200 mm	3.94" / 100 mm		7.09" / 180 mm
	2nd:	6.10" / 155 mm	0.98" / 25 mm		6.10" / 155 mm
	3rd:	2.95" / 75 mm	0.98" / 25 mm		      -
	4th:	0.98" / 25 mm	      -			      -
	5th:	7.87" / 200 mm	3.94" / 100 mm		7.09" / 180 mm

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

   - Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 4 shafts, 17,780 ihp / 13,264 Kw = 20.00 kts
	Range 5,000nm at 10.00 kts
	Bunker at max displacement = 1,484 tons (100% coal)

Complement:
	559 - 727

Cost:
	£0.977 million / $3.907 million

Distribution of weights at normal displacement:
	Armament: 643 tons, 5.5 %
	   - Guns: 637 tons, 5.5 %
	   - Weapons: 7 tons, 0.1 %
	Armour: 3,635 tons, 31.3 %
	   - Belts: 1,790 tons, 15.4 %
	   - Torpedo bulkhead: 296 tons, 2.5 %
	   - Armament: 645 tons, 5.5 %
	   - Armour Deck: 817 tons, 7.0 %
	   - Conning Tower: 87 tons, 0.7 %
	Machinery: 3,014 tons, 25.9 %
	Hull, fittings & equipment: 2,730 tons, 23.5 %
	Fuel, ammunition & stores: 1,452 tons, 12.5 %
	Miscellaneous weights: 150 tons, 1.3 %
	   - On freeboard deck: 50 tons
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  12,917 lbs / 5,859 Kg = 49.1 x 8.1 " / 205 mm shells or 8.1 torpedoes
	Stability (Unstable if below 1.00): 1.80
	Metacentric height 9.6 ft / 2.9 m
	Roll period: 11.1 seconds
	Steadiness	- As gun platform (Average = 50 %): 80 %
			- Recoil effect (Restricted arc if above 1.00): 0.11
	Seaboat quality  (Average = 1.00): 1.59

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.492 / 0.498
	Length to Beam Ratio: 5.00 : 1
	'Natural speed' for length: 20.25 kts
	Power going to wave formation at top speed: 51 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -4.00 degrees
	Stern overhang: 3.28 ft / 1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  19.69 ft / 6.00 m,  16.40 ft / 5.00 m
	   - Forward deck:	30.00 %,  16.40 ft / 5.00 m,  13.12 ft / 4.00 m
	   - Aft deck:	35.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
	   - Quarter deck:	15.00 %,  13.12 ft / 4.00 m,  14.76 ft / 4.50 m
	   - Average freeboard:		14.66 ft / 4.47 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 117.1 %
		- Above water (accommodation/working, high = better): 105.2 %
	Waterplane Area: 22,241 Square feet or 2,066 Square metres
	Displacement factor (Displacement / loading): 99 %
	Structure weight / hull surface area: 113 lbs/sq ft or 552 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.92
		- Longitudinal: 2.07
		- 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