E10-Class Torpedoboat [1910] (Seondok)

E10-Class, Seondok County Torpedoboat laid down 1910

Displacement:
	781 t light; 800 t standard; 837 t normal; 866 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(262.47 ft / 262.47 ft) x 26.25 ft x (9.84 / 10.08 ft)
	(80.00 m / 80.00 m) x 8.00 m  x (3.00 / 3.07 m)

Armament:
      2 - 3.44" / 87.5 mm 40.0 cal guns - 19.59lbs / 8.89kg shells, 100 per gun
	  Quick firing guns in deck mounts, 1894 Model
	  2 x Single mounts on centreline, evenly spread
      2 - 0.98" / 25.0 mm 55.0 cal guns - 0.51lbs / 0.23kg shells, 500 per gun
	  Quick firing guns in deck mounts, 1901 Model
	  2 x Single mounts on centreline, evenly spread
		2 raised mounts
      Weight of broadside 40 lbs / 18 kg
      Main Torpedoes
      2 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 2.143 t each, 4.286 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 - 2.143 t each, 12.858 t total
	In 2 sets of deck mounted centre rotating tubes

Machinery:
	Coal and oil fired boilers, steam turbines,
	Direct drive, 2 shafts, 14,821 shp / 11,057 Kw = 28.05 kts
	Range 1,500nm at 10.00 kts
	Bunker at max displacement = 66 tons (50% coal)

Complement:
	77 - 101

Cost:
	£0.091 million / $0.366 million

Distribution of weights at normal displacement:
	Armament: 41 tons, 4.9 %
	   - Guns: 7 tons, 0.8 %
	   - Weapons: 34 tons, 4.1 %
	Machinery: 445 tons, 53.1 %
	Hull, fittings & equipment: 305 tons, 36.5 %
	Fuel, ammunition & stores: 56 tons, 6.7 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  340 lbs / 154 Kg = 16.6 x 3.4 " / 88 mm shells or 0.1 torpedoes
	Stability (Unstable if below 1.00): 1.23
	Metacentric height 1.0 ft / 0.3 m
	Roll period: 11.1 seconds
	Steadiness	- As gun platform (Average = 50 %): 48 %
			- Recoil effect (Restricted arc if above 1.00): 0.06
	Seaboat quality  (Average = 1.00): 0.91

Hull form characteristics:
	Hull has raised forecastle,
	  a normal bow and a round stern
	Block coefficient (normal/deep): 0.432 / 0.437
	Length to Beam Ratio: 10.00 : 1
	'Natural speed' for length: 16.20 kts
	Power going to wave formation at top speed: 66 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 0.00 degrees
	Stern overhang: 0.00 ft / 0.00 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 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
	   - Aft deck:	35.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
	   - Quarter deck:	15.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
	   - Average freeboard:		11.15 ft / 3.40 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 173.7 %
		- Above water (accommodation/working, high = better): 41.4 %
	Waterplane Area: 4,333 Square feet or 403 Square metres
	Displacement factor (Displacement / loading): 64 %
	Structure weight / hull surface area: 36 lbs/sq ft or 177 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.80
		- Longitudinal: 2.64
		- Overall: 0.90
	Cramped machinery, storage, compartmentation space
	Extremely poor accommodation and workspace room
	Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

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Based on the S176-class torpedoboats. Actual speed is 33 knots (made using Carb's CL calculator).