Trakai-class Battleship (1903)

Trakai, Liotainian Battleship laid down 1903
Displacement:
	13,267 t light; 14,030 t standard; 15,847 t normal; 17,301 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(479.00 ft / 475.72 ft) x 75.13 ft x (28.22 / 30.25 ft)
	(146.00 m / 145.00 m) x 22.90 m x (8.60 / 9.22 m)
Armament:
 4 - 12.20" / 310 mm 40.0 cal guns - 871.18lbs / 395.16kg shells, 125 per gun
	 Breech loading guns in turret on barbette mounts, 1899 Model
	 2 x 2-gun mounts on centreline ends, evenly spread
 16 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 180 per gun
	 Quick firing guns in casemate mounts, 1903 Model
	 16 x Single mounts on sides, evenly spread
		4 raised mounts
 8 - 3.94" / 100 mm 50.0 cal guns - 32.30lbs / 14.65kg shells, 450 per gun
	 Quick firing guns in casemate mounts, 1902 Model
	 8 x Single mounts on sides, evenly spread
		8 hull mounts in casemates- Limited use in all but light seas
 16 - 2.36" / 60.0 mm 50.0 cal guns - 6.99lbs / 3.17kg shells, 500 per gun
	 Quick firing guns in deck mounts, 1902 Model
	 16 x Single mounts on sides, evenly spread
 Weight of broadside 4,937 lbs / 2,239 kg
 Main Torpedoes
 2 - 17.7" / 450 mm, 16.73 ft / 5.10 m torpedoes - 0.659 t each, 1.318 t total
	submerged side tubes
 2nd Torpedoes
 8 - 17.7" / 450 mm, 16.73 ft / 5.10 m torpedoes - 0.659 t each, 5.274 t total
	below water reloads
Armour:
 - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	10.2" / 260 mm	380.58 ft / 116.00 m	10.50 ft / 3.20 m
	Ends:	3.94" / 100 mm	 95.11 ft / 28.99 m	10.50 ft / 3.20 m
	Upper:	3.94" / 100 mm	380.58 ft / 116.00 m	8.20 ft / 2.50 m
	 Main Belt covers 123 % of normal length
 - Torpedo Bulkhead - Strengthened structural bulkheads:
		15.7" / 400 mm	380.58 ft / 116.00 m	26.25 ft / 8.00 m
	Beam between torpedo bulkheads 67.26 ft / 20.50 m
 - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	12.2" / 310 mm	7.87" / 200 mm		10.6" / 270 mm
	2nd:	3.94" / 100 mm	2.76" / 70 mm		3.94" / 100 mm
	3rd:	3.15" / 80 mm	 -			 -
	4th:	0.59" / 15 mm	 -			 -
 - Armoured deck - single deck:
	For and Aft decks: 2.36" / 60 mm
	Forecastle: 1.18" / 30 mm Quarter deck: 1.18" / 30 mm
 - Conning towers: Forward 9.84" / 250 mm, Aft 0.00" / 0 mm
Machinery:
	Coal and oil fired boilers, steam turbines, 
	Direct drive, 2 shafts, 29,516 shp / 22,019 Kw = 22.00 kts
	Range 8,000nm at 10.00 kts
	Bunker at max displacement = 3,271 tons (90% coal)
Complement:
	706 - 918
Cost:
	£1.337 million / $5.347 million
Distribution of weights at normal displacement:
	Armament: 946 tons, 6.0 %
	 - Guns: 937 tons, 5.9 %
	 - Weapons: 9 tons, 0.1 %
	Armour: 10,301 tons, 65.0 %
	 - Belts: 2,344 tons, 14.8 %
	 - Torpedo bulkhead: 5,820 tons, 36.7 %
	 - Armament: 947 tons, 6.0 %
	 - Armour Deck: 1,056 tons, 6.7 %
	 - Conning Tower: 134 tons, 0.8 %
	Machinery: 3,653 tons, 23.1 %
	Hull, fittings & equipment: -1,833 tons, -11.6 %
	Fuel, ammunition & stores: 2,580 tons, 16.3 %
	Miscellaneous weights: 200 tons, 1.3 %
	 - Hull below water: 50 tons
	 - Hull above water: 75 tons
	 - On freeboard deck: 50 tons
	 - Above deck: 25 tons
Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	 16,753 lbs / 7,599 Kg = 18.4 x 12.2 " / 310 mm shells or 6.4 torpedoes
	Stability (Unstable if below 1.00): 1.72
	Metacentric height 7.9 ft / 2.4 m
	Roll period: 11.2 seconds
	Steadiness	- As gun platform (Average = 50 %): 68 %
			- Recoil effect (Restricted arc if above 1.00): 0.22
	Seaboat quality (Average = 1.00): 1.36
Hull form characteristics:
	Hull has rise forward of midbreak,
	 a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.550 / 0.560
	Length to Beam Ratio: 6.33 : 1
	'Natural speed' for length: 21.81 kts
	Power going to wave formation at top speed: 51 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -10.00 degrees
	Stern overhang: -1.97 ft / -0.60 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	 - Forecastle:	15.00 %, 21.33 ft / 6.50 m, 20.34 ft / 6.20 m
	 - Forward deck:	25.00 %, 20.34 ft / 6.20 m, 20.01 ft / 6.10 m
	 - Aft deck:	55.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
	 - Quarter deck:	5.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
	 - Average freeboard:		14.06 ft / 4.29 m
	Ship tends to be wet forward
Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 109.9 %
		- Above water (accommodation/working, high = better): 88.0 %
	Waterplane Area: 24,944 Square feet or 2,317 Square metres
	Displacement factor (Displacement / loading): 75 %
	Structure weight / hull surface area: 125 lbs/sq ft or 608 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.95
		- Longitudinal: 1.63
		- Overall: 1.01
	Adequate machinery, storage, compartmentation space
	Cramped accommodation and workspace room
	Good seaboat, rides out heavy weather easily