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 BB 1-80 SNCF BB 1-80 The SNCF locomotives BB 1 to BB 80 were a class of 1500 V DC 4-axle electric locomotives originally built for the Chemin de Fer de Paris à Orléans in the 1920s. The locomotives were originally numbered E.1 to E.80 prior to the Paris and Orleans railway company's incorporation into the Société Nationale des Chemins de fer Français (SNCF) in 1937. The locomotives were used on both passenger and freight services, particularly in the suburbs of Paris. Between 1948 and 1950 28 of the class were sent to the depot at Chambéry to help with increased traffic