SNCF Class BB 12000 SNCF Class BB 12000 The SNCF Class BB 12000 were electric locomotives operated by SNCF. The first examples arrived on the railway in 1953, operating on the 25 kV 50 Hz line to the coal mines of the "Houillères de Lorraine" in the north-east of France. BB 12001 arrived in Mohon on July 17, 1954. Tried first along the Valenciennes – Lumes line, specifications called for a locomotive capable of pulling 750 tonne trains along a grade of 10 ‰. The 12000 Class proved more than capable, pulling 1100 tonne then 1400 tonne trains. BB 12006 using a different system
SNCF Class BB 10003 SNCF Class BB 10003 The locomotive SNCF BB 10003 was an experimental prototype locomotive converted from a SNCF BB 15000 unit and used to develop the use of asynchronous induction traction motors. The locomotive BB 10003 was created from an earlier experimental machine BB 7003 in 1982. It was used to test the use of aysnchronous induction motors in locomotives. From 1986-7 the locomotive was used in experiments testing the viability of a diesel electric locomotive with asynchronous traction motors; the locomotive was coupled to a remotorised SNCF CC 72000 locomotive which acted as an electrical generator. In 1990/1 the