FM H-10-44

FM H-10-44
Milwaukee Road 760, an H-10-44 and the first FM locomotive, preserved in operating condition at Illinois Railway Museum.
Specifications
Power type	Diesel-electric
Builder	Fairbanks-Morse
Model	H-10-44
Build date	August 1944–March 1950
Total produced	195
AAR wheel arr.	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)
Locomotive 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)
Top speed	60 mph (97 km/h)
Power output	1,000 hp (746 kW)
Tractive effort	40,440 lbf (179.9 kN)
Locomotive brake	Straight air
Train brakes	Air
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.

Units produced

References

• "Fairbanks-Morse 38D8 Diesel Engine". PSRM Diesel Locomotives. Retrieved January 1, 2006. 
• Dorin, Patrick C. (1972). Chicago and North Western Power. Superior Publishing. p. 152. ISBN 0-87564-715-4. 
• Pinkepank, Jerry A. (1973). The Second Diesel Spotter’s Guide. Milwaukee, WI: Kalmbach Publishing Company. ISBN 0-89024-026-4. 
• Kirkland, John F. (November 1985). The Diesel Builders Volume 1: Fairbanks-Morse and Lima-Hamilton. Interurban Press. ISBN 0-916374-69-6. 

External links

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