# FM H-10-44

The FM H-10-44 was a switcher locomotive produced by Fairbanks-Morse from August, 1944–March, 1950. The units featured a 1,000-horsepower (750 kW), 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 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. Another example is former Hallet Dock Company HD-11, which is now at the Lake Superior Railroad Museum in Duluth, Minnesota.
In 1954, Milwaukee Road H-10-44 #1811 (Now 781) and Milwaukee Road “ribside” caboose #01900 wrecked between Monticello and New Glarus, Wisconsin. A wooden rail bridge had been previously burned in a grass fire, and both the locomotive and caboose struck the bridge. Both are now restored and on display at the Brodhead Historical Society in Brodhead, Wisconsin.
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.

## Units produced

| Railroad | Quantity | Road numbers | Notes |
| Apache Railway | 2 | 100, 200 | |
| Atchison, Topeka and Santa Fe Railway | 3 | 500–502 | |
| Baltimore and Ohio Railroad | 10 | 300–309 | Renumbered 9700–9709 |
| Chehalis Western Railroad (Weyerhaeuser) | 2 | 492, 493 | |
| Chicago and North Western Railway | 21 | 1036, 1048–1065, 1070, 1082 | |
| Chicago, Indianapolis and Louisville Railway (“Monon”) | 1 | 18 | |
| Chicago, Milwaukee, St. Paul and Pacific Railroad (“Milwaukee Road’) | 23 | 1802–1818, 1820–1825 | 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”) | 5 | 94–98 | |
| Columbia and Cowlitz Railway | 1 | D-1 | to Pacific Great Eastern Railway |
| Denver and Rio Grande Western Railroad | 4 | 120–123 | 122 to Frisco 286 |
| Fairbanks-Morse (demonstrator unit) | 1 | 10L45 | to Milwaukee Road 1819; renumbered 777 |
| Indianapolis Union Railway | 9 | 10–18 | |
| Kentucky and Indiana Terminal Railroad | 10 | 48–52, 55–59 | |
| Minnesota Western Railway | 1 | 51 | to Minneapolis, Northfield and Southern Railway 11, to Hallet Dock Company HD-11 |
| New York Central Railroad | 7 | 9104–9110 | to Penn Central 8204–8210 |
| New York Central (Pittsburgh and Lake Erie Railroad) | 4 | 9100–9103 | |
| New York, Chicago and St. Louis Railroad (“Nickel Plate Road”) | 9 | 125–133 | to Norfolk and Western Railway 2125–2133 |
| Pennsylvania Railroad | 55 | 5980–5986, 5997–5999, 9080–9099, 9184–9196, 9288–9299 | to Penn Central 8211-8265 |
| Pittsburgh, Chartiers and Youghiogheny Railway | 1 | 1 | |
| St. Louis-San Francisco Railway | 12 | 270–281 | |
| Terminal Railroad Association of St. Louis | 4 | 700–703 | |
| Union Pacific Railroad | 5 | DS1300–DS1304 | |
| Wabash Railroad | 4 | 380–383 | to Norfolk and Western 3380–3383 |
| Weyerhaeuser Timber Company | 1 | 481 | |
| Total | 195 | | |