SNCF Class BB 10003 locomotive was used as a test machine for operations of the TGV-TMST on 750 V and 3000 V. In 1998 the locomotive was converted back to a non-experimental class - as SNCF BB 15007. (SNCF Class BB 15000) The results were not as good as synchronous motor technology; it was not until the introduction of GTO transistor technology that series production of an asynchronous induction motored locomotive began in France, as the "Eurostar" TGV (1992), and later the BB 36000 "Astride" (1996). SNCF Class BB 10003 The locomotive SNCF BB 10003 was an experimental prototype locomotive converted from a SNCF
SNCF TGV La Poste SNCF TGV La Poste The TGV La Poste were dedicated trainsets for high-speed freight and mail transportation by French railway company SNCF on behalf of the French postal carrier La Poste. The top speed of this TGV Sud-Est derivate was , making them the fastest freight trains in the world. However, they have been retired in 2015. The trainsets were built by Alstom between 1978–1986. These TGV units are essentially TGV Sud-Est trainsets that are modified for transporting mail. 5 half-trainsets were built, numbered 1-5. A further two, numbered 6 and 7, were converted from former TGV-SE trainset no. 38.