SNCF Class BB 71000

This small series of 30 locomotives was built by the Departmental Railway Company (CFD), following the BB 60001 which served as their prototype. They were delivered from March 1965 to February 1966. These locomotives, with mechanical transmission and driving rods, were mainly used on freight services. Despite the better efficiency of the mechanical transmission, per gross ton towed and per kilometer, than that of a locomotive with electric transmission, their lack of reliability led to 21 of them being resold to various companies. Certain V12 engines were coupled to a Leroy-Somer alternator, producing 660 volts in three phases (star coupling), as a high power generator (580 kVA), installed in a generator van, for TEE trains (car air-conditioned stainless steel PBA, Mistral 1969, and Grand Confort).^[3][4]

• BB 71001, formerly owned by the Pyrénées-Orientales Departmental Council and based in Boulou, used by the local rail operator (OFP) at Languedoc-Roussillon for shunting and acquired by the latter.
• BB 71008, Re-engineered with a Cummins prime mover and preserved by Trains and Traction.^[5]
• BB 71010, ex-Rive Bleue Express, acquired in 2022, by the Fédération des amis des chemins de fer secondaires (FACS).^[5]
• La BB 71015 acquired by le chemin de fer de la Vendée in 2022.
• BB 71018 acquired by le chemin de fer de la Vendée in 2022.
• BB 71027 acquired by le chemin de fer de la Vendée in 2023.
• BB 71030 by Patry.