FM H-10-44
Milwaukee Road 760, an H-10-44 and the first FM locomotive, preserved in operating condition at Illinois Railway Museum.
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| Type and origin | |
|---|---|
| Power type | Diesel-electric |
| Builder | Fairbanks-Morse |
| Model | H-10-44 |
| Build date | August 1944–March 1950 |
| Total produced | 195 |
| Specifications | |
|---|---|
| Configuration: |
|
| • AAR | B-B |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Trucks | AAR type A |
| Wheel diameter | 40 in (1,016 mm) |
| Minimum curve | 29.50 (194 ft (59.13 m) radius) |
| Wheelbase | 33 ft 6 in (10.21 m) |
| Length | 48 ft 10 in (14.88 m) |
| Width | 10 ft 2 in (3.10 m) |
| Height | 14 ft 6 in (4.42 m) |
| Loco weight | 240,000 lb (108.9 t) |
| Prime mover | FM 38D-6 |
| Engine type | Two-stroke diesel |
| Aspiration | Roots blower |
| Displacement | 6,222 cu in (101.96 l) |
| Generator | Westhse 481-A |
| Traction motors | (4) Westhse 362-D |
| Cylinders | 6 (Opposed piston) |
| Cylinder size | 8.125 in × 10 in (206 mm × 254 mm) |
| Loco brake | Straight air |
| Train brakes | Air |
| Performance figures | |
|---|---|
| Maximum speed | 60 mph (97 km/h) |
| Power output | 1,000 hp (746 kW) |
| Tractive effort | 40,440 lbf (179.9 kN) |
| Career | |
|---|---|
| Locale | North America |
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 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 on display 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 Beloit 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.
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Wikipedia