Brumaire-class submarine

	An unidentified Brumaire-class submarine in Cherbourg
Class overview
Name	Brumaire class
Builders	Arsenal de Cherbourg; Arsenal de Toulon; Arsenal de Rochefort;
Operators	French Navy
Preceded by	Pluviôse class
Succeeded by	Archimède
Subclasses	Joule
Built	1911–13
In commission	1911–28
Completed	16
Lost	3
Scrapped	13
General characteristics (as built)
Type	Submarine
Displacement	397 t (391 long tons) (surfaced); 551 t (542 long tons) (submerged);
Length	52.15 m (171 ft 1 in) (o/a)
Beam	5.42 m (17 ft 9 in)
Draft	3.19 m (10 ft 6 in)
Installed power	840 PS (620 kW; 830 bhp) (diesels); 660 PS (490 kW; 650 bhp) (electric motors);
Propulsion	2 × shafts; 2 × diesel engines; 2 × electric motors;
Speed	13 knots (24 km/h; 15 mph) (surfaced); 8.8 knots (16.3 km/h; 10.1 mph) (submerged);
Range	1,700 nmi (3,100 km; 2,000 mi) at 10 knots (19 km/h; 12 mph) (surfaced); 84 nmi (156 km; 97 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged);
Test depth	40 m (130 ft)
Complement	2 officers and 27 crewmen
Armament	1 × 450 mm (17.7 in) bow torpedo tube; 1 × twin 450 mm Drzewiecki drop collar; 2 × single 450 mm Drzewiecki drop collars; 2 × single external 450 mm torpedo launchers;

The Brumaire-class submarines were built for the French Navy prior to World War I. There were sixteen vessels in this class, of the Laubeuf type.

All saw action during the First World War, with three boats lost.

Class overview
An unidentified Brumaire-class submarine in Cherbourg
Name	Brumaire class
Builders	Arsenal de Cherbourg Arsenal de Toulon Arsenal de Rochefort
Operators	French Navy
Preceded by	Pluviôse class
Succeeded by	Archimède
Subclasses	Joule
Built	1911–13
In commission	1911–28
Completed	16
Lost	3
Scrapped	13
General characteristics (as built)
Type	Submarine
Displacement	397 t (391 long tons) (surfaced) 551 t (542 long tons) (submerged)
Length	52.15 m (171 ft 1 in) (o/a)
Beam	5.42 m (17 ft 9 in)
Draft	3.19 m (10 ft 6 in)
Installed power	840 PS (620 kW; 830 bhp) (diesels) 660 PS (490 kW; 650 bhp) (electric motors)
Propulsion	2 × shafts; 2 × diesel engines 2 × electric motors
Speed	13 knots (24 km/h; 15 mph) (surfaced) 8.8 knots (16.3 km/h; 10.1 mph) (submerged)
Range	1,700 nmi (3,100 km; 2,000 mi) at 10 knots (19 km/h; 12 mph) (surfaced) 84 nmi (156 km; 97 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged)
Test depth	40 m (130 ft)
Complement	2 officers and 27 crewmen
Armament	1 × 450 mm (17.7 in) bow torpedo tube 1 × twin 450 mm Drzewiecki drop collar 2 × single 450 mm Drzewiecki drop collars 2 × single external 450 mm torpedo launchers