The FM H-10-44 was a yard switcher produced by Fairbanks-Morse from August, 1944–March, 1950. The units featured a 1,000-horsepower (750 kW), six-cylinder opposed piston engine prime mover, and were configured in a B-B wheel arrangement mounted atop a pair of two-axle AAR Type A switcher bogie trucks, with all axles powered. Many H-10-44s received modifications that increased their horsepower rating to 1,200 hp (890 kW).
The Raymond Loewy-designed carbody featured a slanted nose, sloping hood lines, and (considered to be its most distinguishing feature) a protruding roof visor mounted on the rear of the cab. These styling cues were carried through to the H-10-44's successor, the FM H-12-44, until September 1952 when the exterior design was "Spartanized" to reduce production costs.
A total of 195 units were built for American railroads. Three intact examples of the H-10-44 are known to survive today, all of which are owned by railroad museums. Most notable of these is Milwaukee Road #760 (originally delivered as #1802), the first Fairbanks–Morse locomotive constructed in their own plant, which is preserved and operational at the Illinois Railway Museum.
A reproduction H-10-44 locomotive sits atop the Wood Family Fishing Bridge, a former railroad bridge which crosses the Rock River several hundred yards south of the foundry where the H-10-44s were built, in Beloit, Wisconsin.
|Atchison, Topeka and Santa Fe Railway|
|Baltimore and Ohio Railroad||Renumbered 9700–9709|
|Chehalis Western Railroad (Weyerhaeuser)|
|Chicago and North Western Railway|
|Chicago, Indianapolis and Louisville Railway (“Monon”)|
|Chicago, Milwaukee, St. Paul and Pacific Railroad (“Milwaukee Road’)||Renumbered 760–776, 778–783;|
760 (ex-1802), 767 (ex-1809) and 781 (ex-1823) are preserved in museums
|Chicago, St. Paul, Minneapolis and Omaha Railway (“Omaha Road”)|
|Columbia and Cowlitz Railway||to Pacific Great Eastern Railway|
|Denver and Rio Grande Western Railroad||122 to Frisco 286|
|Fairbanks-Morse (demonstrator unit)||to Milwaukee Road 1819; renumbered 777|
|Indianapolis Union Railway|
|Kentucky and Indiana Terminal Railroad|
|Minnesota Western Railway||to Minneapolis, Northfield and Southern Railway 11, to Hallet Dock Company HD-11|
|New York Central Railroad||to Penn Central 8204–8210|
|New York Central (Pittsburgh and Lake Erie Railroad)|
|New York, Chicago and St. Louis Railroad (“Nickel Plate Road”)||to Norfolk and Western Railway 2125–2133|
|Pennsylvania Railroad||to Penn Central|
|Pittsburgh, Chartiers and Youghiogheny Railway|
|St. Louis-San Francisco Railway|
|Terminal Railroad Association of St. Louis|
|Union Pacific Railroad|
|Wabash Railroad||to Norfolk and Western 3380–3383|
|Weyerhaeuser Timber Company|
- "Fairbanks-Morse 38D8 Diesel Engine". PSRM Diesel Locomotives. Archived from the original on May 26, 2006. Retrieved January 1, 2006.
- Dorin, Patrick C. (1972). Chicago and North Western Power. Burbank, California: Superior Publishing. p. 152. ISBN 0-87564-715-4.
- Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. ISBN 978-0-89024-026-7.
- Kirkland, John F. (November 1985). The Diesel Builders Volume 1: Fairbanks-Morse and Lima-Hamilton. Interurban Press. ISBN 0-916374-69-6.