E00-Class Torpedoboat [1900] (Seondok)

E00-Class, Seondok County Torpedoboat laid down 1900

Displacement:
	438 t light; 450 t standard; 485 t normal; 513 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(213.25 ft / 213.25 ft) x 22.97 ft x (8.20 / 8.52 ft)
	(65.00 m / 65.00 m) x 7.00 m  x (2.50 / 2.60 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
		1 raised mount
      2 - 0.98" / 25.0 mm 55.0 cal guns - 0.51lbs / 0.23kg shells, 200 per gun
	  Quick firing guns in deck mounts, 1901 Model
	  2 x Single mounts on sides, aft deck aft
      Weight of broadside 40 lbs / 18 kg
      Main Torpedoes
      2 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 1.652 t each, 3.304 t total
	In 2 sets of deck mounted side rotating tubes
      2nd Torpedoes
      3 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 1.652 t each, 4.955 t total
	In 3 sets of deck mounted centre rotating tubes

Armour:
   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	0.98" / 25 mm	0.49" / 13 mm		      -

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 7,330 ihp / 5,468 Kw = 25.06 kts
	Range 1,500nm at 10.00 kts
	Bunker at max displacement = 63 tons (100% coal)
	  Caution: Delicate, lightweight machinery

Complement:
	51 - 67

Cost:
	£0.058 million / $0.231 million

Distribution of weights at normal displacement:
	Armament: 23 tons, 4.8 %
	   - Guns: 7 tons, 1.4 %
	   - Weapons: 17 tons, 3.4 %
	Armour: 6 tons, 1.3 %
	   - Armament: 6 tons, 1.3 %
	Machinery: 290 tons, 59.7 %
	Hull, fittings & equipment: 119 tons, 24.5 %
	Fuel, ammunition & stores: 47 tons, 9.7 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  101 lbs / 46 Kg = 4.9 x 3.4 " / 88 mm shells or 0.1 torpedoes
	Stability (Unstable if below 1.00): 1.08
	Metacentric height 0.6 ft / 0.2 m
	Roll period: 12.1 seconds
	Steadiness	- As gun platform (Average = 50 %): 58 %
			- Recoil effect (Restricted arc if above 1.00): 0.18
	Seaboat quality  (Average = 1.00): 1.16

Hull form characteristics:
	Hull has raised forecastle,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0.423 / 0.430
	Length to Beam Ratio: 9.29 : 1
	'Natural speed' for length: 14.60 kts
	Power going to wave formation at top speed: 66 %
	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:	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): 196.2 %
		- Above water (accommodation/working, high = better): -3.0 %
	Waterplane Area: 3,059 Square feet or 284 Square metres
	Displacement factor (Displacement / loading): 21 %
	Structure weight / hull surface area: 19 lbs/sq ft or 95 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.47
		- Longitudinal: 2.37
		- Overall: 0.55
	Cramped machinery, storage, compartmentation space
	Extremely poor accommodation and workspace room

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Made using Carb's CL calculator; actual speed is 27 knots. Based on the Taku-class destroyer and S90-class torpedoboats.