| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Dévastation | Arsenal de Cherbourg | 5.9.1854 | 17.4.1855 | 5/1855 | stricken 5.1871 | ||
| Tonnante | Arsenal de Brest | 5.9.1854 | 17.3.1855 | 4/1855 | stricken 8.1871 | ||
| Lave | Arsenal de Lorient | 20.8.1854 | 26.5.1855 | 6/1855 | stricken 5.1871 | ||
| Foudroyante | Arsenal de Lorient | 20.8.1854 | 2.6.1855 | 9/1855 | stricken 11.1871 | ||
| Congrève | Arsenal de Rochefort | 4.9.1854 | 1.6.1855 | 8/1855 | stricken 5.1867 |
|
Displacement normal, t |
1604 |
|
Displacement full, t |
|
|
Length, m |
53.0 |
|
Breadth, m |
13.6 |
|
Draught, m |
2.80 |
|
No of shafts |
1 |
|
Machinery |
1 2-cyl HSE, 6 boilers |
|
Power, h. p. |
317 |
|
Max speed, kts |
3.7 |
|
Fuel, t |
coal 100 |
|
Endurance, nm(kts) |
|
|
Armour, mm |
wrought iron; belt: 110, battery: 100 |
|
Armament |
16 x 1 - 194/16 50pdr SBML, 2 x 1 - 138/8 18pdr or 121/8 12pdr SBML carronades |
|
Complement |
282 |
Project history: Wooden-hulled armoured floating batteries built for attack Russian coastal fortifications during Crimean War. Originally they were three-masted barquentine-rigged with 140m² sails on removable masts, later reduced to 39². Manoeuvrability was provided by three rudders.
Ship protection: Sides were protected by 110mm iron at wl, battery had 100mm armour.
Modernizations: 1859, Foudroyante: - 12 x 1 - 194/16, 2 x 1 - 138/8; + 12 x 1 - 163/13 shell SBML, 1 x 1 - 121/11 bronze shell SBML
1866, Dévastation: as TS was armed with 2 x 1 - 240/18 M1864-66 MLR, 1 x 1 - 223/12 shell SBML, 6 x 1 - 194/19 M1864-66 MLR, 3 x 1 - 165/18 M-1864-66 MLR
1870, Foudroyante: - 4 x 1 - 194/16, 12 x 1 - 163/13, 1 x 1 - 121/11; + 10 x 1 - 165/18 M1864 MLR, 2 x 1 - 139/19 M1864 MLR
Naval service: No significant events.
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