Perkunas-class Armoured Cruiser (1906)

Perkunas-class, Liotainian Armoured Cruiser laid down 1906
Displacement:
	13,094 t light; 13,776 t standard; 15,129 t normal; 16,211 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(577.43 ft / 574.15 ft) x 68.90 ft x (26.25 / 27.67 ft)
	(176.00 m / 175.00 m) x 21.00 m x (8.00 / 8.43 m)
Armament:
 8 - 9.84" / 250 mm 45.0 cal guns - 480.81lbs / 218.09kg shells, 130 per gun
	 Breech loading guns in turret on barbette mounts, 1906 Model
	 2 x 2-gun mounts on centreline ends, evenly spread
	 2 x 2-gun mounts on sides, forward deck aft
 16 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 150 per gun
	 Quick firing guns in casemate mounts, 1894 Model
	 16 x Single mounts on sides, evenly spread
		4 hull mounts in casemates- Limited use in heavy seas
 10 - 2.36" / 60.0 mm 50.0 cal guns - 6.99lbs / 3.17kg shells, 300 per gun
	 Quick firing guns in deck mounts, 1906 Model
	 10 x Single mounts on sides, evenly spread
 Weight of broadside 4,998 lbs / 2,267 kg
Armour:
 - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	5.91" / 150 mm	465.88 ft / 142.00 m	9.84 ft / 3.00 m
	Ends:	2.36" / 60 mm	 98.43 ft / 30.00 m	9.84 ft / 3.00 m
	 9.84 ft / 3.00 m Unarmoured ends
	Upper:	2.36" / 60 mm	465.88 ft / 142.00 m	4.27 ft / 1.30 m
	 Main Belt covers 125 % of normal length
 - Torpedo Bulkhead - Additional damage containing bulkheads:
		1.57" / 40 mm	465.88 ft / 142.00 m	23.33 ft / 7.11 m
	Beam between torpedo bulkheads 59.71 ft / 18.20 m
 - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	5.91" / 150 mm	3.94" / 100 mm		3.94" / 100 mm
	2nd:	1.18" / 30 mm	0.79" / 20 mm		0.79" / 20 mm
	3rd:	1.18" / 30 mm	 -			 -
 - Armoured deck - multiple decks:
	For and Aft decks: 2.56" / 65 mm
	Forecastle: 0.79" / 20 mm Quarter deck: 0.79" / 20 mm
 - Conning towers: Forward 5.12" / 130 mm, Aft 2.36" / 60 mm
Machinery:
	Oil fired boilers, steam turbines, 
	Direct drive, 3 shafts, 53,350 shp / 39,799 Kw = 26.50 kts
	Range 6,500nm at 12.00 kts
	Bunker at max displacement = 2,435 tons
Complement:
	681 - 886
Cost:
	£1.359 million / $5.434 million
Distribution of weights at normal displacement:
	Armament: 1,271 tons, 8.4 %
	 - Guns: 1,271 tons, 8.4 %
	Armour: 3,802 tons, 25.1 %
	 - Belts: 1,357 tons, 9.0 %
	 - Torpedo bulkhead: 633 tons, 4.2 %
	 - Armament: 607 tons, 4.0 %
	 - Armour Deck: 1,106 tons, 7.3 %
	 - Conning Towers: 99 tons, 0.7 %
	Machinery: 3,464 tons, 22.9 %
	Hull, fittings & equipment: 4,307 tons, 28.5 %
	Fuel, ammunition & stores: 2,035 tons, 13.5 %
	Miscellaneous weights: 250 tons, 1.7 %
	 - Hull below water: 60 tons
	 - Hull above water: 100 tons
	 - On freeboard deck: 60 tons
	 - Above deck: 30 tons
Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	 15,378 lbs / 6,975 Kg = 32.3 x 9.8 " / 250 mm shells or 2.3 torpedoes
	Stability (Unstable if below 1.00): 1.24
	Metacentric height 4.2 ft / 1.3 m
	Roll period: 14.1 seconds
	Steadiness	- As gun platform (Average = 50 %): 63 %
			- Recoil effect (Restricted arc if above 1.00): 0.55
	Seaboat quality (Average = 1.00): 1.26
Hull form characteristics:
	Hull has rise forward of midbreak,
	 a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.510 / 0.518
	Length to Beam Ratio: 8.33 : 1
	'Natural speed' for length: 23.96 kts
	Power going to wave formation at top speed: 50 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -10.00 degrees
	Stern overhang: -1.64 ft / -0.50 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	 - Forecastle:	20.00 %, 26.57 ft / 8.10 m, 21.65 ft / 6.60 m
	 - Forward deck:	40.00 %, 21.65 ft / 6.60 m, 21.33 ft / 6.50 m
	 - Aft deck:	25.00 %, 10.83 ft / 3.30 m, 10.83 ft / 3.30 m
	 - Quarter deck:	15.00 %, 10.83 ft / 3.30 m, 11.15 ft / 3.40 m
	 - Average freeboard:		17.68 ft / 5.39 m
Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 116.8 %
		- Above water (accommodation/working, high = better): 129.4 %
	Waterplane Area: 26,598 Square feet or 2,471 Square metres
	Displacement factor (Displacement / loading): 101 %
	Structure weight / hull surface area: 123 lbs/sq ft or 600 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.96
		- Longitudinal: 1.44
		- Overall: 1.00
	Cramped machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily
Ships in Class:
- Perkunas
- Pergalingas
Category:Liotain
Category:Liotainian Military
Category:Warship
Category:Cruiser