E02-Class Torpedoboat [1902] (Seondok)

E02-Class, Seondok County Torpedoboat laid down 1902

Displacement:
	495 t light; 510 t standard; 578 t normal; 632 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(213.25 ft / 213.25 ft) x 21.33 ft x (8.20 / 8.81 ft)
	(65.00 m / 65.00 m) x 6.50 m  x (2.50 / 2.68 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 raised mounts
      4 - 1.77" / 45.0 mm 20.0 cal guns - 2.49lbs / 1.13kg shells, 200 per gun
	  Quick firing guns in deck mounts, 1894 Model
	  2 x Twin mounts on sides, aft deck aft
      Weight of broadside 49 lbs / 22 kg
      Main Torpedoes
      2 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 1.767 t each, 3.534 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 - 1.767 t each, 7.069 t total
	In 2 sets of deck mounted centre rotating tubes

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 9,581 ihp / 7,148 Kw = 25.62 kts
	Range 1,000nm at 15.00 kts
	Bunker at max displacement = 123 tons (100% coal)
	  Caution: Delicate, lightweight machinery

Complement:
	58 - 76

Cost:
	£0.068 million / $0.273 million

Distribution of weights at normal displacement:
	Armament: 28 tons, 4.9 %
	   - Guns: 7 tons, 1.3 %
	   - Weapons: 21 tons, 3.7 %
	Machinery: 349 tons, 60.3 %
	Hull, fittings & equipment: 118 tons, 20.4 %
	Fuel, ammunition & stores: 83 tons, 14.3 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  111 lbs / 50 Kg = 5.4 x 3.4 " / 88 mm shells or 0.1 torpedoes
	Stability (Unstable if below 1.00): 1.28
	Metacentric height 0.8 ft / 0.2 m
	Roll period: 10.3 seconds
	Steadiness	- As gun platform (Average = 50 %): 49 %
			- Recoil effect (Restricted arc if above 1.00): 0.25
	Seaboat quality  (Average = 1.00): 0.97

Hull form characteristics:
	Hull has raised forecastle,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0.542 / 0.553
	Length to Beam Ratio: 10.00 : 1
	'Natural speed' for length: 14.60 kts
	Power going to wave formation at top speed: 70 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 0.00 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 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 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:		10.50 ft / 3.20 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 198.1 %
		- Above water (accommodation/working, high = better): 27.9 %
	Waterplane Area: 3,151 Square feet or 293 Square metres
	Displacement factor (Displacement / loading): 20 %
	Structure weight / hull surface area: 18 lbs/sq ft or 88 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.45
		- Longitudinal: 2.21
		- Overall: 0.53
	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 Cyclone-class torpedoboats and G108-class torpedoboats. Made using Carb's CL calculator; actual speed is 28 knots.