Jegug Geonsolja-Class Protected Cruiser [1885] (Seondok)

Jegug Geonselja-Class, Seondok County Protected Cruiser laid down 1885

Displacement:
	4,668 t light; 4,825 t standard; 5,501 t normal; 6,042 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(396.98 ft / 393.70 ft) x 42.65 ft x (19.69 / 21.25 ft)
	(121.00 m / 120.00 m) x 13.00 m  x (6.00 / 6.48 m)

Armament:
      2 - 8.00" / 203 mm 30.0 cal guns - 225.97lbs / 102.50kg shells, 80 per gun
	  Breech loading guns in deck and hoist mounts, 1884 Model
	  2 x Single mounts on centreline, evenly spread
      12 - 4.33" / 110 mm 35.0 cal guns - 35.72lbs / 16.20kg shells, 100 per gun
	  Quick firing guns in casemate mounts, 1882 Model
	  12 x Single mounts on sides, evenly spread
      88 - 0.39" / 10.0 mm 90.0 cal guns - 0.03lbs / 0.01kg shells, 250 per gun
	  Muzzle loading guns in deck mounts, 1880 Model
	  10 x 2 row octuple mounts on sides, evenly spread
	  1 x 2 row octuple mount on centreline, aft deck centre
		1 raised mount
      120 - 0.98" / 25.0 mm 60.0 cal guns - 0.47lbs / 0.21kg shells, 80 per gun
	  Muzzle loading guns in deck mounts, 1878 Model
	  12 x 2 row decuple mounts on sides, evenly spread
		12 raised mounts
      Weight of broadside 940 lbs / 426 kg
      Main Torpedoes
      2 - 17.7" / 450 mm, 13.12 ft / 4.00 m torpedoes - 0.274 t each, 0.548 t total
	submerged bow & stern tubes
      2nd Torpedoes
      4 - 17.7" / 450 mm, 13.12 ft / 4.00 m torpedoes - 0.274 t each, 1.095 t total
	In 4 sets of deck mounted carriage/fixed tubes

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

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		0.98" / 25 mm	393.70 ft / 120.00 m	18.08 ft / 5.51 m
	Beam between torpedo bulkheads 40.19 ft / 12.25 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	3.94" / 100 mm	1.97" / 50 mm		5.91" / 150 mm
	2nd:	0.98" / 25 mm	      -			0.98" / 25 mm

   - Protected deck - single deck:
	For and Aft decks: 1.97" / 50 mm
	Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 3.94" / 100 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 11,588 ihp / 8,644 Kw = 20.00 kts
	Range 5,000nm at 10.00 kts
	Bunker at max displacement = 1,217 tons (100% coal)

Complement:
	319 - 415

Cost:
	£0.533 million / $2.131 million

Distribution of weights at normal displacement:
	Armament: 163 tons, 3.0 %
	   - Guns: 161 tons, 2.9 %
	   - Weapons: 2 tons, 0.0 %
	Armour: 795 tons, 14.4 %
	   - Torpedo bulkhead: 259 tons, 4.7 %
	   - Armament: 65 tons, 1.2 %
	   - Armour Deck: 444 tons, 8.1 %
	   - Conning Tower: 26 tons, 0.5 %
	Machinery: 2,252 tons, 40.9 %
	Hull, fittings & equipment: 1,358 tons, 24.7 %
	Fuel, ammunition & stores: 833 tons, 15.1 %
	Miscellaneous weights: 100 tons, 1.8 %
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  2,751 lbs / 1,248 Kg = 11.6 x 8.0 " / 203 mm shells or 3.1 torpedoes
	Stability (Unstable if below 1.00): 1.41
	Metacentric height 2.5 ft / 0.8 m
	Roll period: 11.2 seconds
	Steadiness	- As gun platform (Average = 50 %): 86 %
			- Recoil effect (Restricted arc if above 1.00): 0.43
	Seaboat quality  (Average = 1.00): 1.71

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.582 / 0.593
	Length to Beam Ratio: 9.23 : 1
	'Natural speed' for length: 19.84 kts
	Power going to wave formation at top speed: 46 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -12.00 degrees
	Stern overhang: -6.56 ft / -2.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  16.40 ft / 5.00 m,  14.76 ft / 4.50 m
	   - Forward deck:	30.00 %,  14.76 ft / 4.50 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,  13.12 ft / 4.00 m
	   - Average freeboard:		13.83 ft / 4.22 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 151.2 %
		- Above water (accommodation/working, high = better): 96.8 %
	Waterplane Area: 12,081 Square feet or 1,122 Square metres
	Displacement factor (Displacement / loading): 93 %
	Structure weight / hull surface area: 84 lbs/sq ft or 408 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.96
		- Longitudinal: 1.57
		- 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