SNCF Class BB 66600

The SNCF Class BB 66600 is a small class of centre cab diesel locomotives rebuilt from the earlier Class BB 66000 by fitting a slightly more powerful engine. The locomotives were 14.898 m long and weighed 71 t. Powered by an SEMT 12PA4 diesel engine developing 1100 kW, they had a maximum speed of 120 kph. All members of the class were fitted for multiple working and all but two had electric train heating.

Initially all 11 were allocated to Nîmes to work services to Clermont-Ferrand.