Diane-class submarine (1914)

Daphné at anchor, 1920s
Class overview
Name:	Diane
Operators:	French Navy
Preceded by:	Bellone class
Succeeded by:	Dupuy de Lôme class
Built:	1913–17
In service:	1916–35
Completed:	2
Lost:	1
Scrapped:	1
General characteristics
Type:	Submarine
Displacement:	673 t (662 long tons) (surfaced) 901 t (887 long tons) (submerged)
Length:	68 m (223 ft 1 in) (o/a)
Beam:	5.53 m (18 ft 2 in) (deep)
Draft:	3.56 m (11 ft 8 in)
Installed power:	2 × 900 PS (660 kW; 890 hp) diesel engines 2 × 700 PS (510 kW; 690 hp) electric motors
Propulsion:	2 shafts
Speed:	17 knots (31 km/h; 20 mph) (surfaced) 11.5 knots (21.3 km/h; 13.2 mph) (submerged)
Range:	2,600 nmi (4,800 km; 3,000 mi) at 10 knots (19 km/h; 12 mph) (surfaced) 100 nmi (190 km; 120 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged)
Complement:	34 crew
Armament:	2 × internal bow 450 mm (17.7 in) torpedo tubes 2 × external bow 450 mm torpedo tubes 2 × external stern 450 mm torpedo tubes 4 × single external 450 mm rotating torpedo launchers 1 × single 75 mm (3.0 in) Canon de 75 modèle 1897 deck gun (Daphné only)

The Diane class was a pair of submarines built for the French Navy during World War I.