| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate | 
| Fabert | Guibert, Nantes | 5/1847 | 20.5.1848 | 4/1849 | stricken 12.1854 | ||
| Inconstant | Guibert, Nantes | 6/1847 | 17.5.1848 | 3/1849 | stricken 4.1857 | 
| Displacement normal, t | 298 | 
| Displacement full, t | |
| Length, m | 30.0 wl | 
| Breadth, m | 8.60 | 
| Draught, m | 3.40 mean | 
| No of shafts | |
| Machinery | sails | 
| Power, h. p. | |
| Max speed, kts | |
| Fuel, t | |
| Endurance, nm(kts) | 
 | 
| Armament | 6 x 1 - 163/13 shell SBML | 
| Complement | 92 | 
Project history: 6-gun brig-avisos.
Modernizations: None.
Naval service: No significant events.
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