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 BB 27300 have been displaced. The usage of BB 27300 locomotives on suburban passenger services is a temporary measure. It is expected that sometime after 2015 they will begin to be replaced by new Electric Multiple Units. When this happens, the locomotives are likely to find further use with SNCF's freight subsidiary, SNCF Fret, where they will join the technically similar BB 27000 locomotives. SNCF Class BB 27300 The SNCF Class BB 27300 is an electric locomotive. There are 67 BB 27300 locomotives, built as part of the Prima range by Alstom. The first BB 27300 were delivered starting in 2006. Painted