| FM H-10-44 | |
| Powertype: | Diesel-electric |
| Builder: | Fairbanks-Morse |
| Aarwheels: | B-B |
| Trucks: | AAR type A |
| Wheeldiameter: | 400NaN0 |
| Minimumcurve: | 29.50 (1942NaN2 radius) |
| Wheelbase: | 33feet |
| Cylindercount: | 6 (Opposed piston) |
| Primemover: | FM 38D-8 1/8 |
| Builddate: | August 1944–March 1950 |
| Totalproduction: | 195 |
| Locale: | North America |
| Poweroutput: | 1000hp |
| Maxspeed: | 600NaN0 |
| Locoweight: | 2400001NaN1 |
| Tractiveeffort: | 404401NaN1 |
| Length: | 48feet |
| Width: | 10feet |
| Height: | 14feet |
| Enginetype: | Two-stroke diesel |
| Aspiration: | Roots blower |
| Cylindersize: | 8.125x |
| Displacement: | 6222cuin |
| Generator: | Westhse 481-A |
| Tractionmotors: | (4) Westhse 362-D |
| Locobrakes: | Straight air |
| Trainbrakes: | Air |
| Buildmodel: | H-10-44 |
| Disposition: | Three preserved, remainder scrapped, 1 replica on display |
The FM H-10-44 was a switcher locomotive produced by Fairbanks-Morse from August, 1944 - March, 1950. The units featured a 1000hp, six-cylinder opposed piston prime mover, and were configured in a B-B wheel arrangement mounted atop a pair of two-axle AAR Type A trucks, with all axles powered. Many H-10-44s received modifications that increased their horsepower rating to 1200hp.
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. Another example is former Hallet Dock Company HD-11, which is now at the Lake Superior Railroad Museum in Duluth, Minnesota.
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.
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| Renumbered 9700–9709 | |||
| Chehalis Western Railroad (Weyerhaeuser) | |||
| 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”) | |||
| to Pacific Great Eastern Railway | |||
| 122 to Frisco 286 | |||
| Fairbanks-Morse (demonstrator unit) | to Milwaukee Road 1819; renumbered 777 | ||
| to Minneapolis, Northfield and Southern Railway 11, to Hallet Dock Company HD-11 | |||
| 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 | ||
| to Penn Central 8211-8265 | |||
| to Norfolk and Western 3380–3383 | |||
| Total | 195 | ||