French battleship Lyon

Lyon, French Lyon-class battleship laid down 1913 (Engine 1915)

Displacement:
	30,032 t light; 31,574 t standard; 34,447 t normal; 36,745 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(723.92 ft / 695.54 ft) x 98.43 ft x (28.54 / 30.12 ft)
	(220.65 m / 212.00 m) x 30.00 m  x (8.70 / 9.18 m)

Armament:
      8 - 13.39" / 340 mm 45.0 cal guns - 1,221.36lbs / 554.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1915 Model
	  2 x 4-gun mounts on centreline, forward deck forward
		1 raised mount - superfiring
      24 - 5.46" / 139 mm 55.0 cal guns - 80.47lbs / 36.50kg shells, 275 per gun
	  Breech loading guns in casemate mounts, 1913 Model
	  24 x Single mounts on sides, evenly spread
      4 - 2.95" / 75.0 mm 50.0 cal guns - 13.07lbs / 5.93kg shells, 500 per gun
	  Anti-air guns in deck mounts, 1913 Model
	  4 x Single mounts on sides, evenly spread
		4 raised mounts
      20 - 0.33" / 8.3 mm 92.8 cal guns - 0.03lbs / 0.01kg shells, 4,000 per gun
	  Machine guns in deck mounts, 1913 Model
	  20 x Single mounts on sides, evenly spread
      Weight of broadside 11,755 lbs / 5,332 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	12.2" / 310 mm	313.68 ft / 95.61 m	11.91 ft / 3.63 m
	Ends:	2.95" / 75 mm	381.82 ft / 116.38 m	11.91 ft / 3.63 m
	Upper:	10.6" / 270 mm	313.68 ft / 95.61 m	8.01 ft / 2.44 m
	  Main Belt covers 69 % of normal length
	  Main Belt inclined 15.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		5.91" / 150 mm	313.68 ft / 95.61 m	27.10 ft / 8.26 m
	Beam between torpedo bulkheads 82.02 ft / 25.00 m

   - Hull void:
		0.00" / 0 mm	  0.00 ft / 0.00 m	0.00 ft / 0.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	13.4" / 340 mm	8.92" / 227 mm		12.2" / 310 mm

   - Armoured deck - multiple decks:
	For and Aft decks: 4.53" / 115 mm
	Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 10.63" / 270 mm, Aft 6.30" / 160 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 79,890 shp / 59,598 Kw = 25.81 kts
	Range 7,850nm at 15.00 kts
	Bunker at max displacement = 5,170 tons

Complement:
	1,263 - 1,643

Cost:
	£2.730 million / $10.922 million

Distribution of weights at normal displacement:
	Armament: 2,443 tons, 7.1 %
	   - Guns: 2,443 tons, 7.1 %
	Armour: 11,478 tons, 33.3 %
	   - Belts: 3,891 tons, 11.3 %
	   - Torpedo bulkhead: 1,857 tons, 5.4 %
	   - Armament: 2,167 tons, 6.3 %
	   - Armour Deck: 3,177 tons, 9.2 %
	   - Conning Towers: 386 tons, 1.1 %
	Machinery: 3,026 tons, 8.8 %
	Hull, fittings & equipment: 12,599 tons, 36.6 %
	Fuel, ammunition & stores: 4,415 tons, 12.8 %
	Miscellaneous weights: 485 tons, 1.4 %
	   - Hull below water: 120 tons
	   - Hull void weights: 120 tons
	   - Hull above water: 120 tons
	   - On freeboard deck: 75 tons
	   - Above deck: 50 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  74,385 lbs / 33,741 Kg = 62.0 x 13.4 " / 340 mm shells or 13.5 torpedoes
	Stability (Unstable if below 1.00): 1.23
	Metacentric height 7.2 ft / 2.2 m
	Roll period: 15.5 seconds
	Steadiness	- As gun platform (Average = 50 %): 71 %
			- Recoil effect (Restricted arc if above 1.00): 0.72
	Seaboat quality  (Average = 1.00): 1.82

Hull form characteristics:
	Hull has a flush deck,
	  a straight bulbous bow and a cruiser stern
	Block coefficient (normal/deep): 0.617 / 0.624
	Length to Beam Ratio: 7.07 : 1
	'Natural speed' for length: 26.37 kts
	Power going to wave formation at top speed: 49 %
	Trim (Max stability = 0, Max steadiness = 100): 39
	Bow angle (Positive = bow angles forward): 35.00 degrees
	Stern overhang: 6.56 ft / 2.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	27.45 %,  31.17 ft / 9.50 m,  29.53 ft / 9.00 m
	   - Forward deck:	27.05 %,  29.53 ft / 9.00 m,  29.53 ft / 9.00 m
	   - Aft deck:	18.05 %,  29.53 ft / 9.00 m,  29.53 ft / 9.00 m
	   - Quarter deck:	27.45 %,  29.53 ft / 9.00 m,  29.53 ft / 9.00 m
	   - Average freeboard:		29.71 ft / 9.05 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 69.3 %
		- Above water (accommodation/working, high = better): 226.5 %
	Waterplane Area: 50,869 Square feet or 4,726 Square metres
	Displacement factor (Displacement / loading): 124 %
	Structure weight / hull surface area: 184 lbs/sq ft or 899 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.92
		- Longitudinal: 2.06
		- Overall: 1.00
	Excellent machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Ship has slow, easy roll, a good, steady gun platform
	Excellent seaboat, comfortable, can fire her guns in the heaviest weather

French fast battleship of the 1910s. Armed with 8 34 centimeter guns in 2 quadruple turrets, the Lyon-class battleships would serve as the precursors to the more modern Dunkerque and Richelieu class battleships.