FM H-10-44

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FM H-10-44

Chehalis Western Railroad #493, an FM H-10-44 yard switcher, one of two purchased by the CWR. The unit was equipped for multiple unit operation and subsequently upgraded to 1,200 horsepower.
Power type	Diesel-electric
Builder	Fairbanks-Morse
Model	H-10-44
Build date	August 1944 — March 1950
Total production	195
AAR wheel arr.	B-B
Gauge	1,435 mm (4 ft 8½ in)
Length	48 ft 10 in (14.88 m)
Total weight	240,000 lb (109,000 kg)
Prime mover	FM 38D-6
Engine type	2-stroke diesel
Aspiration	Roots blower
Displacement	3,108 in³ (50.9 L)
Cylinders	6 (Opposed piston)
Cylinder size	8.125 in × 10 in (206 mm × 254 mm)
Transmission	DC generator, DC traction motors
Top speed	60  mph (97 km/h)
Power output	1,000 hp (746 kW)
Tractive effort	40,440 lbf (180 kN)
Locomotive brakes	Straight air
Train brakes	Air
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 hp, 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 aftermarket modifications that increased their horsepower rating to 1,200.

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.

A print advertisement from the October 10, 1949 issue of Newsweek for FM's Model H10-44 locomotives, featuring Wabash Railroad #380.

Milwaukee Road 760, an H-10-44 and the first FM locomotive, preserved in operating condition at Illinois Railway Museum.

[edit] Units produced

[edit] References

• Fairbanks-Morse 38D8 Diesel Engine. PSRM Diesel Locomotives. Retrieved on January 1, 2006.
• Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, WI: Kalmbach Publishing Co.. ISBN 0-89024-026-4. 

[edit] See also

• List of Fairbanks-Morse locomotives

[edit] External links

• Fairbanks-Morse H10-44 Roster
• Preserved Fairbanks Morse Yard Power