1914 MN Lyon

LYONESSE, LA FRANCE CONTRE-TORPEILLEUR D'BATTAILE laid down 1914

Displacement:
	25,406 t light; 27,819 t standard; 29,600 t normal; 31,025 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(524.93 ft / 524.93 ft) x 100.07 ft x (30.18 / 31.42 ft)
	(160.00 m / 160.00 m) x 30.50 m  x (9.20 / 9.58 m)

Armament:
      12 - 13.39" / 340 mm 45.0 cal guns - 1,223.57lbs / 555.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1912 Model
	  2 x 4-gun mounts on centreline ends, evenly spread
	  1 x 4-gun mount on centreline, forward deck centre
      28 - 5.98" / 152 mm 45.0 cal guns - 109.70lbs / 49.76kg shells, 250 per gun
	  Quick firing guns in deck and hoist mounts, 1891 Model
	  10 x Twin mounts on sides, evenly spread
		4 raised mounts
	  2 x Quad mounts on centreline, forward evenly spread
		2 raised mounts
      16 - 4.72" / 120 mm 45.0 cal guns - 63.87lbs / 28.97kg shells, 400 per gun
	  Quick firing guns in deck and hoist mounts, 1891 Model
	  8 x Twin mounts on sides, evenly spread
		8 double raised mounts
      24 - 4.72" / 120 mm 45.0 cal guns - 63.87lbs / 28.97kg shells, 400 per gun
	  Quick firing guns in casemate mounts, 1891 Model
	  16 x Single mounts on centreline, forward evenly spread
		16 hull mounts in casemates- Limited use in heavy seas
	  8 x Single mounts on sides, aft evenly spread
      4 - 2.95" / 75.0 mm 50.0 cal guns - 12.68lbs / 5.75kg shells, 400 per gun
	  Quick firing guns in deck mounts, 1891 Model
	  4 x Single mounts on sides, evenly spread
		4 double raised mounts
      Weight of broadside 20,360 lbs / 9,235 kg
      Main Torpedoes
      6 - 21.0" / 533 mm, 29.53 ft / 9.00 m torpedoes - 1.840 t each, 11.039 t total
	In 2 sets of deck mounted side rotating tubes

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	15.7" / 400 mm	393.70 ft / 120.00 m	13.12 ft / 4.00 m
	Ends:	3.94" / 100 mm	131.23 ft / 40.00 m	13.12 ft / 4.00 m
	Upper:	7.09" / 180 mm	393.70 ft / 120.00 m	11.15 ft / 3.40 m
	  Main Belt covers 115 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		2.95" / 75 mm	442.91 ft / 135.00 m	36.09 ft / 11.00 m
	Beam between torpedo bulkheads 70.54 ft / 21.50 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	15.7" / 400 mm	8.46" / 215 mm		9.84" / 250 mm
	2nd:	7.09" / 180 mm	3.15" / 80 mm		7.87" / 200 mm
	3rd:	1.97" / 50 mm	0.98" / 25 mm		3.94" / 100 mm
	4th:	7.09" / 180 mm	      -			3.94" / 100 mm

   - Armoured deck - multiple decks:
	For and Aft decks: 2.95" / 75 mm
	Forecastle: 2.95" / 75 mm  Quarter deck: 2.95" / 75 mm

   - Conning towers: Forward 15.75" / 400 mm, Aft 0.00" / 0 mm

Machinery:
	Coal and oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 37,314 shp / 27,836 Kw = 21.00 kts
	Range 6,500nm at 12.00 kts
	Bunker at max displacement = 3,205 tons (80% coal)

Complement:
	1,127 - 1,466

Cost:
	£3.680 million / $14.719 million

Distribution of weights at normal displacement:
	Armament: 4,151 tons, 14.0 %
	   - Guns: 4,129 tons, 13.9 %
	   - Weapons: 22 tons, 0.1 %
	Armour: 12,258 tons, 41.4 %
	   - Belts: 5,180 tons, 17.5 %
	   - Torpedo bulkhead: 1,746 tons, 5.9 %
	   - Armament: 2,783 tons, 9.4 %
	   - Armour Deck: 2,224 tons, 7.5 %
	   - Conning Tower: 325 tons, 1.1 %
	Machinery: 1,550 tons, 5.2 %
	Hull, fittings & equipment: 7,396 tons, 25.0 %
	Fuel, ammunition & stores: 4,194 tons, 14.2 %
	Miscellaneous weights: 50 tons, 0.2 %
	   - Above deck: 50 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  38,077 lbs / 17,271 Kg = 31.8 x 13.4 " / 340 mm shells or 5.0 torpedoes
	Stability (Unstable if below 1.00): 1.19
	Metacentric height 6.9 ft / 2.1 m
	Roll period: 16.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 71 %
			- Recoil effect (Restricted arc if above 1.00): 0.79
	Seaboat quality  (Average = 1.00): 1.30

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0.653 / 0.658
	Length to Beam Ratio: 5.25 : 1
	'Natural speed' for length: 22.91 kts
	Power going to wave formation at top speed: 51 %
	Trim (Max stability = 0, Max steadiness = 100): 55
	Bow angle (Positive = bow angles forward): 0.00 degrees
	Stern overhang: -3.28 ft / -1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	10.00 %,  25.26 ft / 7.70 m,  21.65 ft / 6.60 m
	   - Forward deck:	50.00 %,  21.65 ft / 6.60 m,  21.65 ft / 6.60 m
	   - Aft deck:	25.00 %,  14.44 ft / 4.40 m,  14.44 ft / 4.40 m
	   - Quarter deck:	15.00 %,  14.44 ft / 4.40 m,  14.44 ft / 4.40 m
	   - Average freeboard:		18.91 ft / 5.76 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 105.4 %
		- Above water (accommodation/working, high = better): 128.7 %
	Waterplane Area: 40,366 Square feet or 3,750 Square metres
	Displacement factor (Displacement / loading): 91 %
	Structure weight / hull surface area: 206 lbs/sq ft or 1,004 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.93
		- Longitudinal: 2.02
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Ship has slow, easy roll, a good, steady gun platform
	Good seaboat, rides out heavy weather easily

340mm Model 1912 - primary (2rpm) (1110kg/min) 13320
Canet 152mm Model 1891 - contre-croiser (10rpm) (497kg/min) 8940
Canet 120mm Model 1891 - contre-torpeilleur (15rpm) (435kg/min) 8700
Canet_ 75mm Model 1891 - contre-balloon (15rpm) (86kg/min)
4x Hotchkiss Machinegun - anti-aircraft (450rpm) (8mm lebel) (bridge wings)

Main belt extends 1.8m below waterline.
Torpedo bulkhead rises to meet main deck, 2.2m above waterline.
50mm armoured deck atop main belt; 25mm armoured weather deck extents. 50mm protected belt fore/aft.
Turret sides and rear are 400mm, roof is 100mm. Barbettes are entirely hidden behind at least 180mm belt + internal bulkheading.

2 boat cranes (50t)