Chujong-Class Battleship (Ex Yan-Su) [1936] (Seondok)

Chujong (Ex-Yan Su)-Class, Seondok County Battleship laid down 1905 (Engine 1936)

Displacement:
	16,893 t light; 18,050 t standard; 18,804 t normal; 19,407 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(501.97 ft / 492.13 ft) x 88.58 ft x (27.07 / 27.76 ft)
	(153.00 m / 150.00 m) x 27.00 m  x (8.25 / 8.46 m)

Armament:
      8 - 12.60" / 320 mm 45.0 cal guns - 1,168.45lbs / 530.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1904 Model
	  2 x 2-gun mounts on centreline, evenly spread
	  4 x Single mounts on sides, evenly spread
      14 - 6.10" / 155 mm 60.0 cal guns - 124.45lbs / 56.45kg shells, 250 per gun
	  Quick firing guns in casemate mounts, 1933 Model
	  10 x Single mounts on sides, evenly spread
	  4 x Single mounts on centreline, evenly spread
      32 - 1.06" / 27.0 mm 50.0 cal guns - 0.64lbs / 0.29kg shells, 1,800 per gun
	  Anti-air guns in deck mounts, 1918 Model
	  8 x 2 row quad mounts on sides, evenly spread
		8 raised mounts
      Weight of broadside 11,110 lbs / 5,040 kg
      Main Torpedoes
      8 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 1.970 t each, 15.762 t total
	In 2 sets of deck mounted side rotating tubes
      2nd Torpedoes
      16 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 1.970 t each, 31.524 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	12.6" / 320 mm	328.08 ft / 100.00 m	11.19 ft / 3.41 m
	Ends:	3.15" / 80 mm	164.04 ft / 50.00 m	11.19 ft / 3.41 m
	Upper:	6.30" / 160 mm	328.08 ft / 100.00 m	8.01 ft / 2.44 m
	  Main Belt covers 103 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		1.77" / 45 mm	328.08 ft / 100.00 m	24.97 ft / 7.61 m
	Beam between torpedo bulkheads 54.13 ft / 16.50 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	12.6" / 320 mm	9.84" / 250 mm		9.84" / 250 mm
	2nd:	5.91" / 150 mm	1.97" / 50 mm		5.91" / 150 mm
	3rd:	0.98" / 25 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 2.95" / 75 mm
	Forecastle: 2.95" / 75 mm  Quarter deck: 2.95" / 75 mm

   - Conning towers: Forward 12.60" / 320 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 36,231 shp / 27,028 Kw = 22.50 kts
	Range 10,000nm at 10.00 kts
	Bunker at max displacement = 1,356 tons

Complement:
	802 - 1,043

Cost:
	£1.598 million / $6.392 million

Distribution of weights at normal displacement:
	Armament: 2,211 tons, 11.8 %
	   - Guns: 2,140 tons, 11.4 %
	   - Weapons: 71 tons, 0.4 %
	Armour: 7,657 tons, 40.7 %
	   - Belts: 2,990 tons, 15.9 %
	   - Torpedo bulkhead: 537 tons, 2.9 %
	   - Armament: 2,251 tons, 12.0 %
	   - Armour Deck: 1,688 tons, 9.0 %
	   - Conning Tower: 192 tons, 1.0 %
	Machinery: 1,017 tons, 5.4 %
	Hull, fittings & equipment: 5,733 tons, 30.5 %
	Fuel, ammunition & stores: 1,911 tons, 10.2 %
	Miscellaneous weights: 275 tons, 1.5 %
	   - Hull below water: 100 tons
	   - On freeboard deck: 75 tons
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  29,894 lbs / 13,560 Kg = 29.9 x 12.6 " / 320 mm shells or 3.8 torpedoes
	Stability (Unstable if below 1.00): 1.22
	Metacentric height 6.0 ft / 1.8 m
	Roll period: 15.2 seconds
	Steadiness	- As gun platform (Average = 50 %): 60 %
			- Recoil effect (Restricted arc if above 1.00): 0.53
	Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.558 / 0.561
	Length to Beam Ratio: 5.56 : 1
	'Natural speed' for length: 22.18 kts
	Power going to wave formation at top speed: 53 %
	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 %,  22.97 ft / 7.00 m,  19.69 ft / 6.00 m
	   - Forward deck:	30.00 %,  19.69 ft / 6.00 m,  16.40 ft / 5.00 m
	   - Aft deck:	35.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Quarter deck:	15.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Average freeboard:		17.81 ft / 5.43 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 101.7 %
		- Above water (accommodation/working, high = better): 120.6 %
	Waterplane Area: 30,646 Square feet or 2,847 Square metres
	Displacement factor (Displacement / loading): 103 %
	Structure weight / hull surface area: 161 lbs/sq ft or 787 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.93
		- Longitudinal: 1.92
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily