Model of 1750 hp North American diesel cab locomotive
EMD F9 D&RGW F9 #5771 in 2009. Note the carbody filter grille ahead of the front porthole, the only reliable distinguishing feature of an F9.
Performance figures Maximum speed 65–105 mph (105–169 km/h) Power output 1,750 hp (1.30 MW)
The EMD F9 is a 1,750 horsepower (1,300 kW) Diesel-electric locomotive produced between February 1953 and May 1960 by the Electro-Motive Division of General Motors (EMD) and General Motors Diesel (GMD) . It succeeded the F7 model in GM-EMD's F-unit sequence. Final assembly was at GM-EMD's La Grange, Illinois plant. The F9 was also built in Canada by General Motors Diesel at their London, Ontario plant. A total of 101 cab-equipped lead A units and 156 cabless booster B units were built. The F9 was the fifth model in GM-EMD's highly successful "F" series of cab unit diesel locomotives.
By the time cab units such as the F9 were built, railroads were turning to the road switcher-style of locomotive , as they had much better visibility from the cab without the need to lean out the window. The F9 was succeeded in most part by the EMD GP9 .