| Names | N°29; 30 N° 56-59 | 
| Builders | Thornycroft, Chiswick, UK: N°29, 30, 58, 59 F C de la Méditerranée, La Seyne: N°56, 57 | 
| Completed | 1879: N°29, 30 1881: N°58, 59 1882: N°56, 57 | 
| Losses | none | 
| Transfers | none | 
| Discarding | 1897-1904: N°29, 30, 57-59 1910: N°56 | 
| Displacement normal, t | N°29, 30, 58, 59: 9 N°56, 57: 11 | 
| Displacement full, t | |
| Length, m | 18.3 | 
| Breadth, m | 2.28 | 
| Draught, m | 0.58 | 
| No of shafts | 1 | 
| Machinery | 1 CR, 1 locomotive boiler | 
| Power, h. p. | |
| Max speed, kts | 12 | 
| Fuel, t | coal | 
| Endurance, nm(kts) | |
| Armament | N°29, 30, 58, 59: 2 - 350 TC N°56, 57: 1 - 350 TT (bow) | 
| Complement | 12 | 
Project history: The first pair were ordered 1.4.1878, 58 and 59 on 16.8.1880 and the remainder on 15.2.1881. 56 and 57 were built to a modified design at La Seyne, and had a ram bow; they proved to be a full 2kts slower on trials than the straight-stemmed Thornycroft boats (14.6kts as opposed to 16.2-16.9kts). The French-built boats were fitted with two 'impulse-tubes' which fired the torpedo using an explosive charge whereas the others had the usual torpedo 'frame' dropping gear.
Modernizations: None.
Naval service: They spent most of their careers aboard the TB transport Japon and later aboard the cruiser-like La Foudre until replaced by the specially-built 'alphabetical' TBs. They were stricken or sold between 1897 and 1904, although 56 survived until 1910.
© Ivan Gogin, 2014