Aegugja-Class Coastal Defense Ship [1905] (Seondok)

Aegugja-Class, Seondok County Coastal Defense Ship laid down 1905

Displacement:
	9,458 t light; 10,000 t standard; 10,673 t normal; 11,211 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(367.45 ft / 360.89 ft) x 78.74 ft x (22.97 / 23.90 ft)
	(112.00 m / 110.00 m) x 24.00 m  x (7.00 / 7.28 m)

Armament:
      6 - 12.20" / 310 mm 42.0 cal guns - 881.44lbs / 399.82kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1896 Model
	  3 x Twin mounts on centreline, evenly spread
      12 - 3.44" / 87.5 mm 40.0 cal guns - 19.59lbs / 8.89kg shells, 250 per gun
	  Quick firing guns in casemate mounts, 1894 Model
	  12 x Single mounts on sides, evenly spread
      16 - 0.98" / 25.0 mm 55.0 cal guns - 0.51lbs / 0.23kg shells, 600 per gun
	  Quick firing guns in deck mounts, 1901 Model
	  16 x Single mounts on sides, evenly spread
		16 raised mounts
      Weight of broadside 5,532 lbs / 2,509 kg
      Main Torpedoes
      4 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 1.970 t each, 7.881 t total
	In 2 sets of deck mounted side rotating tubes
      2nd Torpedoes
      4 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 1.970 t each, 7.881 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	11.8" / 300 mm	241.80 ft / 73.70 m	10.66 ft / 3.25 m
	Ends:	1.97" / 50 mm	119.06 ft / 36.29 m	10.66 ft / 3.25 m
	Upper:	5.91" / 150 mm	241.80 ft / 73.70 m	8.01 ft / 2.44 m
	  Main Belt covers 103 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.97" / 50 mm	241.80 ft / 73.70 m	21.36 ft / 6.51 m
	Beam between torpedo bulkheads 59.06 ft / 18.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	11.8" / 300 mm	7.87" / 200 mm		11.0" / 280 mm
	2nd:	2.95" / 75 mm	0.98" / 25 mm		2.95" / 75 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 14.17" / 360 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 7,725 ihp / 5,763 Kw = 16.00 kts
	Range 5,000nm at 10.00 kts
	Bunker at max displacement = 1,211 tons (100% coal)

Complement:
	524 - 682

Cost:
	£0.960 million / $3.839 million

Distribution of weights at normal displacement:
	Armament: 939 tons, 8.8 %
	   - Guns: 914 tons, 8.6 %
	   - Weapons: 26 tons, 0.2 %
	Armour: 4,280 tons, 40.1 %
	   - Belts: 2,009 tons, 18.8 %
	   - Torpedo bulkhead: 376 tons, 3.5 %
	   - Armament: 1,003 tons, 9.4 %
	   - Armour Deck: 744 tons, 7.0 %
	   - Conning Tower: 148 tons, 1.4 %
	Machinery: 1,120 tons, 10.5 %
	Hull, fittings & equipment: 3,019 tons, 28.3 %
	Fuel, ammunition & stores: 1,215 tons, 11.4 %
	Miscellaneous weights: 100 tons, 0.9 %
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  14,344 lbs / 6,506 Kg = 15.8 x 12.2 " / 310 mm shells or 2.1 torpedoes
	Stability (Unstable if below 1.00): 1.36
	Metacentric height 6.0 ft / 1.8 m
	Roll period: 13.5 seconds
	Steadiness	- As gun platform (Average = 50 %): 83 %
			- Recoil effect (Restricted arc if above 1.00): 0.40
	Seaboat quality  (Average = 1.00): 1.65

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.572 / 0.578
	Length to Beam Ratio: 4.58 : 1
	'Natural speed' for length: 19.00 kts
	Power going to wave formation at top speed: 45 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -8.00 degrees
	Stern overhang: -3.28 ft / -1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	18.00 %,  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:	37.00 %,  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:		13.78 ft / 4.20 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 100.0 %
		- Above water (accommodation/working, high = better): 94.8 %
	Waterplane Area: 20,253 Square feet or 1,882 Square metres
	Displacement factor (Displacement / loading): 96 %
	Structure weight / hull surface area: 139 lbs/sq ft or 677 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.91
		- Longitudinal: 2.36
		- 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