Geodaehan Nanjaeng-i-Class Light Destroyer [1914] (Seondok)

Geodaehan Nanjaeng-i-Class, Seondok County Light Destroyer laid down 1914

Displacement:
	1,598 t light; 1,650 t standard; 1,751 t normal; 1,832 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(365.03 ft / 364.17 ft) x 32.81 ft x (9.84 / 10.19 ft)
	(111.26 m / 111.00 m) x 10.00 m  x (3.00 / 3.11 m)

Armament:
      1 - 5.71" / 145 mm 45.0 cal gun - 93.81lbs / 42.55kg shells, 100 per gun
	  Quick firing gun in deck mount, 1898 Model
	  1 x Single mount on centreline, forward deck forward
		1 raised mount
      2 - 4.33" / 110 mm 45.0 cal guns - 40.96lbs / 18.58kg shells, 150 per gun
	  Quick firing guns in deck mount, 1904 Model
	  1 x Twin mount on centreline, aft deck aft
      2 - 3.44" / 87.5 mm 40.0 cal guns - 19.59lbs / 8.89kg shells, 200 per gun
	  Quick firing guns in deck mount, 1894 Model
	  1 x Twin mount on centreline, aft deck forward
		1 raised mount
      4 - 0.98" / 25.0 mm 55.0 cal guns - 0.51lbs / 0.23kg shells, 250 per gun
	  Quick firing guns in deck mounts, 1901 Model
	  4 x Single mounts on sides, evenly spread
		4 raised mounts
      Weight of broadside 217 lbs / 98 kg
      Main Torpedoes
      2 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 2.159 t each, 4.318 t total
	In 2 sets of deck mounted side rotating tubes
      2nd Torpedoes
      6 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 2.159 t each, 12.954 t total
	In 2 sets of deck mounted centre rotating tubes

Armour:
   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	0.49" / 13 mm	      -			      -
	2nd:	0.49" / 13 mm	      -			      -
	3rd:	0.49" / 13 mm	      -			      -

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 20,645 shp / 15,401 Kw = 28.05 kts
	Range 1,500nm at 15.00 kts
	Bunker at max displacement = 183 tons

Complement:
	134 - 175

Cost:
	£0.226 million / $0.904 million

Distribution of weights at normal displacement:
	Armament: 69 tons, 3.9 %
	   - Guns: 34 tons, 1.9 %
	   - Weapons: 35 tons, 2.0 %
	Armour: 4 tons, 0.2 %
	   - Armament: 4 tons, 0.2 %
	Machinery: 795 tons, 45.4 %
	Hull, fittings & equipment: 730 tons, 41.7 %
	Fuel, ammunition & stores: 153 tons, 8.7 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  1,148 lbs / 521 Kg = 12.3 x 5.7 " / 145 mm shells or 0.2 torpedoes
	Stability (Unstable if below 1.00): 1.25
	Metacentric height 1.4 ft / 0.4 m
	Roll period: 11.6 seconds
	Steadiness	- As gun platform (Average = 50 %): 64 %
			- Recoil effect (Restricted arc if above 1.00): 0.25
	Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
	Hull has raised forecastle,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0.521 / 0.527
	Length to Beam Ratio: 11.10 : 1
	'Natural speed' for length: 19.08 kts
	Power going to wave formation at top speed: 59 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 3.00 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 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Forward deck:	30.00 %,  13.12 ft / 4.00 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,  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): 152.9 %
		- Above water (accommodation/working, high = better): 94.1 %
	Waterplane Area: 8,117 Square feet or 754 Square metres
	Displacement factor (Displacement / loading): 103 %
	Structure weight / hull surface area: 51 lbs/sq ft or 249 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.93
		- Longitudinal: 2.01
		- Overall: 1.00
	Cramped machinery, storage, compartmentation space
	Adequate accommodation and workspace room
	Good seaboat, rides out heavy weather easily

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Made using Carb's CL calculator; actual speed is 33 knots.