Dupuy de Lôme-class submarine

Class overview
Name:	Dupuy de Lôme
Operators:	French Navy
Preceded by:	Diane class
Succeeded by:	Joëssel 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 × single 47 mm (1.9 in) deck gun

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

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