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 Class 141R These four locomotives are protected as "monument historique" (national heritage objects). Five locos are based in Switzerland with two in working order: Another three are stored there as spare parts after the bankruptcy of the company in charge of their restoration. The three remaining locomotives are all the property of the SNCF, and are preserved as static exhibits. SNCF Class 141R The SNCF 141 R is a class of 2-8-2 steam locomotives of the " Société Nationale des Chemins de fer Français" (French State Railways). They were used all over the French rail network from 1945–1974. At the end of