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 long and weighed. Powered by an SEMT 12PA4 diesel engine developing, they had a maximum speed of. 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.