The submarine FR Fresnel of the French Navy.
Technical information
| Type | Submarine |
| Displacement | 1384 / 2080 BRT |
| Length | 92 metres |
| Complement | 4 officers + 59 men |
| Armament | 1 3.9" gun. 1 37 mm AA. 1 13 mm AA. 9 21.7" torpedo tubes. 2 15.7" torpedo tubes. |
| Max speed | 17 / 10 knots (surfaced/submerged) |
| Engines | Diesel / electric, 2 shafts |
| Power | 6000 BHP / 2000 SHP (surfaced/submerged) |
| Notes on class |
All ships of the Redoutable class
| ||
| Achéron | ||
| Achille | Lost on 18 Jun 1940 | |
| Actéon | Lost on 8 Nov 1942 | |
| Ajax | Lost on 24 Sep 1940 | |
| Archimede | ||
| Argo | ||
 | Fresnel | |
| Henri Poincaré | ||
| Monge | Lost on 8 May 1942 | |
| Pascal | Lost on 27 Nov 1942 | |
| Pasteur | Lost on 18 Jun 1940 | |
| Pégase | ||
| Persée | Lost on 23 Sep 1940 | |
| Poncelet | Lost on 7 Nov 1940 | |
| Protée | Lost on 29 Dec 1943 | |
| Redoutable | ||
| Vengeur | Lost on 27 Nov 1942 | |
| ||
French Navy (more on See all Submarine classes.