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 Z 22500 SNCF Class Z 22500 SNCF Class Z 22500 "Eole" is a type of double-decker, dual-voltage electric multiple units operated on the French RER E line, and originally on the Paris Saint-Lazare network. These trains have been built by GEC Alstom and ANF. The Z 22500 is also known as the SNCF version of the MI 2N. SNCF Class Z 22500 looks very similar to RATP Altéo trains, but many differences exist between these models, such as motorization and design of inner spaces. The lay-out of the carriages is somewhat unusual for a bi-level design. Each carriage has three entrance doors,