| Names | Écureuil, 1849- Écureuil No.1, 1859- Écureuil Mirmidon | 
| Builders | Arsenal de Cherbourg: Écureuil, Mirmidon | 
| Completed | 1831: Écureuil (1st time) 1841: Mirmidon 1859: Écureuil (2nd time) | 
| Losses | none | 
| Transfers | none | 
| Discarding | 1852: Écureuil (1st time) 1860: Mirmidon 1872: Écureuil (2nd time) | 
| Displacement normal, t | 41 | 
| Displacement full, t | |
| Length, m | 15.6 oa | 
| Breadth, m | 4.75 | 
| Draught, m | 2.26 | 
| No of shafts | |
| Machinery | sails | 
| Power, h. p. | |
| Max speed, kts | |
| Fuel, t | |
| Endurance, nm(kts) | 
 | 
| Armament | 8 x 1 - 53/17 SBML swivels | 
| Complement | 21 | 
Project history: 6-8-gun cutters.
Modernizations: None.
Naval service: No significant events..
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