Circé-class submarine (1907)

Class overview
Name	Circé class
Builders	Arsenal de Toulon
Operators	French Navy
Preceded by	Émeraude class
Succeeded by	Guêpe class
Built	1905–1909
In commission	1909–1918
Completed	2
Lost	2
General characteristics (as built)
Type	Submarine
Displacement	361 t (355 long tons) (surfaced); 498 t (490 long tons) (submerged);
Length	47.13 m (154 ft 8 in) (o/a)
Beam	4.9 m (16 ft 1 in)
Draft	3.24 m (10 ft 8 in)
Installed power	630 PS (463 kW; 621 bhp) (diesels); 360 PS (265 kW; 355 bhp) (electric motors);
Propulsion	2 × shafts; 2 × diesel engines; 2 × electric motors;
Speed	11.9 knots (22.0 km/h; 13.7 mph) (surfaced, trials); 7.3–7.7 knots (13.5–14.3 km/h; 8.4–8.9 mph) (submerged, trials);
Range	2,000 nmi (3,700 km; 2,300 mi) at 7.3 knots (13.5 km/h; 8.4 mph) (surfaced); 76 nmi (141 km; 87 mi) at 4 knots (7.4 km/h; 4.6 mph) (submerged);
Complement	2 officers and 20 crewmen
Armament	6 × external 450 mm (17.7 in) torpedo launchers (4 × fixed, 2 × Drzewiecki drop collars)

The Circé-class submarines consisted of a pair of submarines built for the French Navy (Marine Nationale) during the first decade of the 20th century. One boat was sunk in a collision before the First World War and the other was torpedoed and sunk by a German submarine in the last year of the war.

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