Sané
Class overview
Name	Dupuy de Lôme
Operators	French Navy
Preceded by	Diane class
Succeeded by	Joessel class
Built	1913–16
In service	1916–35
Completed	2
Scrapped	2
General characteristics (as built)
Type	Submarine
Displacement	853 t (840 long tons) (surfaced) 1,291 t (1,271 long tons) (submerged)
Length	75 m (246 ft 1 in) (o/a)
Beam	6.39 m (21 ft 0 in) (deep)
Draft	3.6 m (11 ft 10 in)
Installed power	2 × 1,700 PS (1,300 kW; 1,700 hp); 2 Du Temple boilers 2 × 820 PS (600 kW; 810 hp) electric motors
Propulsion	2 shafts; 2 triple-expansion steam engines
Speed	18 knots (33 km/h; 21 mph) (surfaced) 10.9 knots (20.2 km/h; 12.5 mph) (submerged)
Range	2,350 nmi (4,350 km; 2,700 mi) at 10 knots (19 km/h; 12 mph) (surfaced) 120 nmi (220 km; 140 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged)
Test depth	50 m (164 ft 1 in)
Complement	41 crew
Armament	2 × external bow 450 mm (17.7 in) torpedo tubes 2 × external stern 450 mm torpedo tubes 4 × single 450 mm rotating torpedo launchers 1 × 75 mm (3.0 in) 1 × 47 mm (1.9 in) Hotchkiss deck gun

The Dupuy de Lôme class was a group of two submarines built for the French Navy during World War I.

• List of submarines of France

• Couhat, Jean Labayle (1974). French Warships of World War I. London: Ian Allan. ISBN 0-7110-0445-5.
• Gardiner, Robert & Gray, Randal (1985). Conway's All The World's Fighting Ships 1906–1921. London: Conway Maritime Press. ISBN 0-85177-245-5.
• Garier, Gérard (2002). A l'épreuve de la Grande Guerre. L'odyssée technique et humaine du sous-marin en France (in French). Vol. 3–2. Bourg-en-Bresse, France: Marines édition. ISBN 2-909675-81-5.
• Garier, Gérard (2000). Des Clorinde (1912-1916) aux Diane (1912–1917). L'odyssée technique et humaine du sous-marin en France (in French). Vol. 3–1. Bourg-en-Bresse, France: Marines édition. ISBN 2-909675-54-8.
• Roche, Jean-Michel (2005). "Classement par types". Dictionnaire des bâtiments de la flotte de guerre française de Colbert à nos jours 2, 1870 - 2006. Toulon: Roche. ISBN 978-2-9525917-0-6. OCLC 165892922.