Sirène-class submarine (1901)

	Sirène, c. 1909
Class overview
Name	Sirène class
Builders	Arsenal de Cherbourg
Operators	French Navy
Preceded by	Narval
Succeeded by	Morse class
Completed	4
Scrapped	4
General characteristics (as built)
Type	Submarine
Displacement	157 t (155 long tons) (surfaced); 213 t (210 long tons) (submerged);
Length	32.5 m (106 ft 8 in) (o/a)
Beam	3.9 m (12 ft 10 in)
Draft	2.5 m (8 ft 2 in)
Installed power	1 × du Temple boiler; 250 ihp (190 kW) (steam engine); 100 bhp (75 kW) (electric motor);
Propulsion	1 × shaft; 1 × triple-expansion steam engine; 1 × electric motor;
Speed	9.75 knots (18.1 km/h; 11.2 mph) (surfaced); 5.8 knots (10.7 km/h; 6.7 mph) (submerged);
Range	535 nmi (991 km; 616 mi) at 6.9 knots (12.8 km/h; 7.9 mph) surfaced; 52 nmi (96 km; 60 mi) at 3.4 knots (6.3 km/h; 3.9 mph) submerged;
Complement	12
Armament	2 × external 450 mm (17.7 in) Drzewiecki drop collars; 2 × external Tissier 450 mm torpedo launchers;

The Sirène class consisted of four submarines built for the French Navy during the first decade of the 20th century. They played a minor role in the First World War.