Pluviôse Class.
(Completed 1907–12.)
- Pluviôse.
- Nivôse.
- Ventôse.
- Messidor.
- Thermidor.
- Fructidor.
- Brumaire.
- Frimaire.
- Florèal.
- Prairial.
- Germinal.
Submarines of the Laubeuf type with a submerged displacement of nearly 600 tons. All built at Cherbourg. The Brumaire and Frimaire are driven by petrol motors of 700 H.-P. when cruising on the surface, but all the others have small steam turbines with a special type of flash-boiler. Electric motors are used for submerged propulsion. Their speed is 12 knots above and 9 knots below. The armament is seven 18-inch torpedoes. Their complement is 22 officers and men.