LYON CLASS

NAME	BUILDER	LAID DOWN	LAUNCHED	COMPLETED
Duquesne	Arsenal de Brest	---------	----------	----------
Lille	F C de la Mediterranee La Seyne	---------	-----------	-----------
Lyon	A c de la Loire et Penhoet, St Nazaire	---------	-----------	-----------
Tourville	Arsenal de Lorient	---------	------------	-----------

Specifications

Displacement 27,500 tons standard 29,000 tons full load

Dimensions

Length 638 ft 2 in (194.5 m )

Beam 95 ft 2in (29 m )

Draught 30 ft 2 in (9.20 m )

Machinery

4 Shaft Turbines and VTE, Boilers producing 43,000 shp

Speed 23 kts

Armour (Provisional) Belt 300mm (11.8 in) Amidships 120 mm - 180 mm (4.7 in - 7.1 in ) at the ends

upper belt 240mm (9.4 in) amidships and 160mm (6.3 in) at the ends. Upper deck 50 mm ( 2 in ), lower deck

50 mm ( 2 in) slopes 70 mm Barbettes 284 mm (11.2 inch), Turrets 250 mm-340 mm 9.8 in - 13.4 in) Case mates

160 mm -180 mm (6.3in - 7.1 inch) Conning Tower 300 mm (11.8 in )

(Although designed with this Specification in mind this class was intended to have a slightly thinner upper deck

and case mates and stronger submerged sections.

Armament

16 (4 Quadruple Turrets) 13.4 inch (340 mm )/45 mod 12 M, 24 -5.5 inch (138.6 mm) /55 Mod 10

40 mm or 47 mm AA ,6 Torpedo Tubes.

Complement unknown

Begun in 1913 this class was an enlargement of the preceding Normandie class Battleship,construction was due to start in 1915 but the out break of the Great War halted the project at the design stage As with the Normandies the main armament was all center line mounted in four quadruple turrets two super firing Aft ,with the 5.5 inch guns mounted in case mates .As with the armour the machinery of the ship was not really finalised . It was proposed to fit combined machinery similar to the Normandie or direct drive turbines as in the Bearn and earlier Dreadnoughts.Geared turbines was also a possibility. After the war their was no funds to restart buliding work on the Battle Fleet and so these vessel slipped gently into the realm of what may have been.