Diane-class submarine (1930)

Class overview
Name	Diane class
Operators	French Navy
Preceded by	600 Series submarines
Succeeded by	Orion class
Built	1930–1933
In commission	1931–1946
Completed	9
Lost	6
Scrapped	3
General characteristics (as built)
Type	Submarine
Displacement	571 long tons (580 t) (surfaced) 809 long tons (822 t) (submerged)
Length	64.4 m (211 ft 3 in)
Beam	6.2 m (20 ft 4 in)
Draught	4.3 m (14 ft 1 in)
Installed power	1,400 bhp (1,000 kW) (diesels) 1,000 shp (750 kW) (electric motors)
Propulsion	2 × diesel engines 2 × electric motors
Speed	14 knots (26 km/h; 16 mph) (surfaced) 9 knots (17 km/h; 10 mph) (submerged)
Range	4,000 nmi (7,400 km; 4,600 mi) at 10 knots (19 km/h; 12 mph) (surfaced) 85 nmi (157 km; 98 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged)
Complement	41
Armament	3 × 550 mm (21.7 in) bow torpedo tubes 3 × 400 mm (15.7 in) external torpedo tubes 1 × 76.2 mm (3.0 in) deck gun

The Diane-class submarines were a group of nine submarines built for the French Navy during the 1930s. Six boats were sunk during the Second World War and the others were sold for scrap in 1946.