1925 Panssarilaiva Lemminkainen

Lemminkainen, Finland Panssarilaiva laid down 1925

Displacement:
	7,366 t light; 7,913 t standard; 8,120 t normal; 8,285 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(283.00 ft / 265.00 ft) x 65.50 ft x (18.50 / 18.85 ft)
	(86.26 m / 80.77 m) x 19.96 m  x (5.64 / 5.75 m)

Armament:
      4 - 12.00" / 305 mm 50.0 cal guns - 870.01lbs / 394.63kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1910 Model
	  1 x 2-gun mount on centreline, aft deck aft
	  1 x 2-gun mount on centreline, forward deck forward
      8 - 5.00" / 127 mm 25.0 cal guns - 53.99lbs / 24.49kg shells, 400 per gun
	  Dual purpose guns in deck and hoist mounts, 1921 Model
	  4 x Twin mounts on sides, aft evenly spread
      8 - 5.00" / 127 mm 25.0 cal guns - 53.99lbs / 24.49kg shells, 400 per gun
	  Dual purpose guns in deck and hoist mounts, 1921 Model
	  4 x Single mounts on side ends, evenly spread
		4 raised mounts
	  4 x Single mounts on centreline, evenly spread
		4 raised mounts
      Weight of broadside 4,344 lbs / 1,970 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	11.0" / 279 mm	265.00 ft / 80.77 m	3.00 ft / 0.91 m
	Upper:	13.5" / 343 mm	265.00 ft / 80.77 m	8.00 ft / 2.44 m
	  Main Belt covers 154 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		3.00" / 76 mm	240.00 ft / 73.15 m	15.00 ft / 4.57 m
	Beam between torpedo bulkheads 30.50 ft / 9.30 m

   - Hull void:
		1.50" / 38 mm	240.00 ft / 73.15 m	21.00 ft / 6.40 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	18.0" / 457 mm	6.00" / 152 mm		5.60" / 142 mm
	2nd:	8.00" / 203 mm	4.50" / 114 mm		12.0" / 305 mm

   - Armoured deck - single deck:
	For and Aft decks: 6.00" / 152 mm
	Forecastle: 6.00" / 152 mm  Quarter deck: 6.00" / 152 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 6,481 shp / 4,835 Kw = 15.00 kts
	Range 1,800nm at 12.60 kts
	Bunker at max displacement = 371 tons

Complement:
	426 - 555

Cost:
	£2.339 million / $9.357 million

Distribution of weights at normal displacement:
	Armament: 1,019 tons, 12.5 %
	   - Guns: 1,019 tons, 12.5 %
	Armour: 4,493 tons, 55.3 %
	   - Belts: 1,383 tons, 17.0 %
	   - Torpedo bulkhead: 400 tons, 4.9 %
	   - Void: 280 tons, 3.4 %
	   - Armament: 581 tons, 7.2 %
	   - Armour Deck: 1,849 tons, 22.8 %
	Machinery: 210 tons, 2.6 %
	Hull, fittings & equipment: 1,644 tons, 20.2 %
	Fuel, ammunition & stores: 754 tons, 9.3 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  14,215 lbs / 6,448 Kg = 16.5 x 12.0 " / 305 mm shells or 3.5 torpedoes
	Stability (Unstable if below 1.00): 1.34
	Metacentric height 4.5 ft / 1.4 m
	Roll period: 13.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 58 %
			- Recoil effect (Restricted arc if above 1.00): 0.51
	Seaboat quality  (Average = 1.00): 1.16

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a straight bulbous bow and a cruiser stern
	Block coefficient (normal/deep): 0.885 / 0.886
	Length to Beam Ratio: 4.05 : 1
	'Natural speed' for length: 16.28 kts
	Power going to wave formation at top speed: 58 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 45.00 degrees
	Stern overhang: 0.00 ft / 0.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	10.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
	   - Forward deck:	30.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
	   - Aft deck:	50.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
	   - Quarter deck:	10.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
	   - Average freeboard:		13.20 ft / 4.02 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 124.8 %
		- Above water (accommodation/working, high = better): 96.0 %
	Waterplane Area: 16,515 Square feet or 1,534 Square metres
	Displacement factor (Displacement / loading): 90 %
	Structure weight / hull surface area: 121 lbs/sq ft or 592 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.90
		- Longitudinal: 2.83
		- Overall: 1.01
	Cramped machinery, storage, compartmentation space
	Adequate accommodation and workspace room

Built in the USA, for superior torpedo protection despite less than stellar guns (delicious pasta guns)
Two  screws, two rudders.

12"/50 Mark 7 guns in 2x2 twin turrets.
5"/25 Mark 13 guns in 4x2 newly designed armoured DP mounts and 8x1 unarmoured Mark 27 AA mounts

5.3m deep TDS, similar to Colorado-class torpedo protection system. Torpedo blister extends forward and blends into bulbous bow.

Deck edge has a 2ft 'lip' for better seakeeping; decks at 8ft and 16ft
343mm Class A belt covers entire ship between first deck and waterline; 3ft lower strake tapers to 203mm. Belt is capped by 140mm STS deck. 38mm lower STS splinter deck at waterline has 51mm slopes joining to  lower edge of belt.
Weather deck forward is 19mm STS.
Barbettes extend from top of armoured deck to 2' above weather deck and are 305-356mm thick.(192t)
Main Turrets have 457mm faces, 152mm roof, 173mm sides, 102mm rear.
5"/25 twin turrets have 203mm faces, 152mm roof, 76mm sides, and 38mm rear. Hoists have 305mm protection. Turrets are DP, but tracking speed causes reduced AA efficiency at short range.
5"/25 single deck mounts are unarmoured for faster tracking, and are mounted high for dryness.
Main turret faces are class B, all other vertical armour is class A.

The superstructure is reinforced in certain areas to enable the mounting of a variety of anti-aircraft machineguns.
The bridge is unarmoured - if the bridge is destroyed, the ship can be conned by telephone from the forward turret.