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The EMD F9 is a Template:Convert 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 92 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.

Engine and powertrainEdit

The F9 used a 16-cylinder 567C series Diesel engine developing Template:Convert at 800 rpm. The 567 was designed specifically for locomotive applications, being a 45 degree V-type two-stroke design, with Template:Convert displacement per cylinder, for a total of Template:Convert. A D.C. generator powered four D37 traction motors, two on each Blomberg B truck. EMD has built all of its major components since 1939. <ref>Template:Cite book</ref> <ref>Template:Cite book</ref>

IdentificationEdit

An F9 can be distinguished reliably from a late F7 only by the addition of an extra filter grille ahead of the front porthole on the side panels on A units. Internally, the use of an 567C prime mover increased power to Template:Convert from the F7's Template:Convert.

Original ownersEdit

EMD built 248 E9 locomotives: 92 A units and 156 B units. Nine railroads purchased A units; all but one of these purchased B units. Six railroads purchased B units only. The most significant buyer was the Northern Pacific Railway, which purchased 38 A units and 32 B units. Other significant buyers included the Canadian National Railway (38 B units) and the Atchison, Topeka and Santa Fe Railway (18 of each).Template:Sfnp Locomotives intended for use in Canada were built by General Motors Diesel, EMD's Canadian subsidiary. These included the Canadian National's order,Template:Sfnp and eight B units for the Canadian Pacific Railway.Template:Sfnp

See alsoEdit

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NotesEdit

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BibliographyEdit

External linksEdit

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