Fresnel Class.
(Completed 1908–12.)
- Fresnel.
- Berthelot.
- Papin.
- Monge.
- Ampère.
- Gay-Lussac.
- Cagnot.
- Faraday.
- Giffard.
- Montgolfier.
- Newton.
- Volta.
- Watt.
- Euler.
- Faucault.
- Franklin.
- Arago.
- Permouilli.
- Joule.
- Coulomb.
- Curie.
- Le Verrier.
Twenty-two submarines of the largest sea-going Laubeuf type. Only three of these are steam driven, the others using heavy-oil engines for surface propulsion. They are in all respects similar to vessels of the Pluviôse class, and have a displacement of about 600 tons. Their speed is 12 knots above, and 9 knots below, and the armament seven 18-inch torpedoes. These vessels are fitted with stern as well as bow tubes. Their surface cruising range is over 2,000 miles.