The EMD FL9 is a model of electro-diesel locomotive, capable of operating either as a traditional diesel-electric locomotive or as an electric locomotive powered from a third rail. Sixty units were built between October 1956 and November 1960 by General Motors Electro-Motive Division for the New York, New Haven and Hartford Railroad.
New Haven FL9 No. 2010 at Enfield in 1968
The "Farewell to the FL9" excursion train.
Two FL9s preserved at the Danbury Railway Museum. The FL9 in the background wears an ahistorical New York Central Railroad livery.
Electro-diesel locomotive
An electro-diesel locomotive is a type of locomotive that can be powered either from an electricity supply or by using the onboard diesel engine. For the most part, these locomotives are built to serve regional, niche markets with a very specific purpose.
OPE1A [ru; uk] industrial electro-diesel locomotive for quarry railways with primary electric locomotive and two diesel B–units
British Rail Class 73, no. E6013 (73107) at Rowsley South, on the Peak Railway on 17 April 2003. This locomotive was on loan from Fragonset Railways, and has since returned to main-line service with RT Rail.
DM30AC 501 primarily diesel locomotive operating in electric locomotive mode from a third rail at New Hyde Park, USA
Stadler Euro Dual 2159, no 219, at Dresden railway station, Germany