Lagrange 1918
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Laplace | Q111 | Arsenal de Rochefort | 1913 | 12.8.1919 | 1921 | stricken 1937 | |
| Lagrange | Q112 | Arsenal de Toulon | 1913 | 31.5.1917 | 2.1918 | stricken 7.1935 | |
| Regnault | Q113 | Arsenal de Toulon | 1913 | 25.6.1924 | 1924 | stricken 1937 | |
| Romazotti | Q114 | Arsenal de Toulon | 1914 | 31.3.1918 | 9.1918 | stricken 7.1935 |
|
Displacement standard, t |
|
|
Displacement normal, t |
920 / 1318 |
|
Length, m |
75.2 |
|
Breadth, m |
6.30 |
|
Draught, m |
3.60 |
|
No of shafts |
2 |
|
Machinery |
2 Sulzer diesels / 2 electric motors |
|
Power, h. p. |
2600 / 1640 |
|
Max speed, kts |
16.5 / 11 |
|
Fuel, t |
diesel oil |
| Endurance, nm(kts) | 4300(10) / 125(5) |
|
Armament |
2 x 1 - 75/35 M1897, 8 - 450 TT (2 bow, 4 inboard, 2 ext cradles; 10) |
| Complement | 47 |
| Diving depth operational, m | 50 |
Project history: Largest and strongest submarines of French Navy fleet, represented an improved version of Dupuy de Lôme. Under the project they should have 4000hp steam turbines for surface cruising, but during building were equipped by Sulzer diesels.
Modernizations: None.
Naval service: No significant events.
Laplace
Many thanks to Wolfgang Stöhr for additional information on this page.
© Ivan Gogin, 2008-14