The EMD F7 was a 1,500 horsepower (1,100 kW) Diesel-electric locomotive produced between February 1949 and December 1953 by the Electro-Motive Division of General Motors (EMD) and General Motors Diesel (GMD). Final assembly was at GM-EMD's La Grange, Illinois plant or GMD's London, Ontario facility. Although originally promoted as a freight-hauling unit by EMD, the F7 was also extensively used in passenger service. A total of 2,366 cab-equipped lead A-units and 1,483 cabless booster or B-units were built. The L&N owned 66 of the A units and 44 of the B Units.
On the A&BR, a F7 in the classic blue and cream L&N colors pulls the L&Ns crack Mountain Flyer.