Amphitrite-class submarine

A colorized postcard of Andromaque
Class overview
Name:	Amphitrite
Operators:	French Navy
Preceded by:	Gustave Zédé class
Succeeded by:	Bellone class
Built:	1913–18
In service:	1915–35
Completed:	8
Lost:	1
Scrapped:	7
General characteristics (as built)
Type:	Submarine
Displacement:	424 t (417 long tons) (surfaced) 614 t (604 long tons) (submerged)
Length:	53.95 m (177 ft 0 in) (o/a)
Beam:	5.41 m (17 ft 9 in) (deep)
Draft:	3.3 m (10 ft 10 in)
Installed power:	2 650 PS (480 kW; 640 hp) diesel engines 2 350 PS (260 kW; 350 hp) electric motors
Propulsion:	2 shafts
Speed:	12–13 knots (22–24 km/h; 14–15 mph) (surfaced) 9.5 knots (17.6 km/h; 10.9 mph) (submerged)
Range:	1,300 nmi (2,400 km; 1,500 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)
Test depth:	40 m (131 ft 3 in)
Complement:	27 crew
Armament:	2 × 450 mm (17.7 in) external torpedo launchers 6 × single 450 mm Drzewiecki drop collars 1 × single 47 mm (1.9 in) Hotchkiss deck gun

The Amphitrite class was a group of eight submarines built for the French Navy just before World War I and completed during the war.