E03-Class Torpedoboat [1903] (Seondok)

E03-Class, Seondok County Torpedoboat laid down 1903

Displacement:
	754 t light; 775 t standard; 862 t normal; 932 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(230.12 ft / 229.66 ft) x 29.53 ft x (8.20 / 8.72 ft)
	(70.14 m / 70.00 m) x 9.00 m  x (2.50 / 2.66 m)

Armament:
      1 - 4.33" / 110 mm 45.0 cal gun - 40.96lbs / 18.58kg shells, 100 per gun
	  Quick firing gun in deck mount, 1904 Model
	  1 x Single mount on centreline, aft deck aft
      1 - 3.44" / 87.5 mm 40.0 cal gun - 19.59lbs / 8.89kg shells, 100 per gun
	  Quick firing gun in deck mount, 1894 Model
	  1 x Single mount on centreline amidships (forward deck)
		1 raised mount
      4 - 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 Twin mounts on centreline, evenly spread
		2 raised mounts
      Weight of broadside 63 lbs / 28 kg
      Main Torpedoes
      2 - 21.7" / 550 mm, 32.81 ft / 10.00 m torpedoes - 1.831 t each, 3.661 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 - 1.831 t each, 10.983 t total
	In 3 sets of deck mounted centre rotating tubes

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

Machinery:
	Coal fired boilers, reciprocating cruising steam engines and steam turbines
	Direct drive, 2 shafts, 13,666 ihp / 10,194 Kw = 26.16 kts
	Range 1,000nm at 15.00 kts
	Bunker at max displacement = 156 tons (100% coal)
	  Caution: Delicate, lightweight machinery

Complement:
	79 - 103

Cost:
	£0.107 million / $0.426 million

Distribution of weights at normal displacement:
	Armament: 40 tons, 4.7 %
	   - Guns: 11 tons, 1.3 %
	   - Weapons: 29 tons, 3.4 %
	Armour: 2 tons, 0.3 %
	   - Armament: 2 tons, 0.3 %
	Machinery: 551 tons, 63.9 %
	Hull, fittings & equipment: 161 tons, 18.7 %
	Fuel, ammunition & stores: 108 tons, 12.5 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  164 lbs / 74 Kg = 4.0 x 4.3 " / 110 mm shells or 0.1 torpedoes
	Stability (Unstable if below 1.00): 1.55
	Metacentric height 1.7 ft / 0.5 m
	Roll period: 9.6 seconds
	Steadiness	- As gun platform (Average = 50 %): 31 %
			- Recoil effect (Restricted arc if above 1.00): 0.06
	Seaboat quality  (Average = 1.00): 0.38

Hull form characteristics:
	Hull has raised forecastle,
	  a normal bow and a round stern
	Block coefficient (normal/deep): 0.542 / 0.551
	Length to Beam Ratio: 7.78 : 1
	'Natural speed' for length: 15.15 kts
	Power going to wave formation at top speed: 72 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 2.00 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): 209.3 %
		- Above water (accommodation/working, high = better): 21.2 %
	Waterplane Area: 4,699 Square feet or 437 Square metres
	Displacement factor (Displacement / loading): 23 %
	Structure weight / hull surface area: 23 lbs/sq ft or 110 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.49
		- Longitudinal: 1.16
		- Overall: 0.53
	Extremely poor machinery, storage, compartmentation space
	Extremely poor accommodation and workspace room
	Caution: Lacks seaworthiness - very limited seakeeping ability

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Made using Carb's CL calculator; actual speed is 29 knots.