(Completed 1906–8.)
- Emeraude.
- Saphir.
- Opale.
- Topaz.
- Rubis.
- Turquoise.
These six vessels are of the Maugas type and are sea-going submarines with a submerged displacement of over 400 tons. They have petrol and electric motors of 600 H.-P. and 450 H.-P., respectively. Their surface speed is 12 knots and submerged 8 ½ knots. Their surface cruising radius is just over 1,000 miles at economical speed. Their armament consists of two tubes and four holders with 8 torpedoes of the usual pattern. Their complement is seventeen officers and men.
Circe Class.
(Completed 1907.)
- Circe.
- Calypso.
These two vessels are of the Laubeuf type, and are improvements on the Aigrette class. They have a submerged displacement of about 450 tons and are 160 feet in length. They are driven by a steam engine of 440 H.-P. (flash boiler and oil fuel) when on the surface, and by electric motors when submerged. Their speed is 11 knots and 8 knots; and the range of action 1,000 miles. Their armament comprises two tubes and four holders with eight torpedoes. The complement is 21 officers and men.
Pluviôse Class.
(Completed 1907–12.)
- Pluviôse.
- Nivôse.
- Ventôse.
- Messidor.
- Thermidor.
- Fructidor.
- Brumaire.
- Frimaire.
- Florèal.
- Prairial.
- Germinal.