FM H-12-44

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FM H-12-44
Del Monte San Jose - Flickr - drewj1946.jpg
SP #2380 backs the Del Monte into San Jose in April 1971, a week before the Amtrak takeover.
Type and origin
Power type Diesel-electric
Builder Fairbanks-Morse
Model H-12-44
Build date May 1950 – March 1961
Total produced 336
Specifications
AAR wheel arr. B-B
Gauge 4 ft 8 12 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 4 in (3.15 m)
Height 14 ft 6 58 in (4.44 m)
Loco weight 240,000 lb (108.9 t)
Prime mover FM 38D-6
Engine type Opposed piston Two-stroke diesel
Aspiration Roots blower
Displacement 6,222 cu in (101.96 l)
Generator FM DGZJ
Traction motors (4) FM DRZH
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 1,200 hp (895 kW)
Tractive effort 40,440 lbf (179.9 kN))
Career
Locale North America

The FM H-12-44 was a yard switcher produced by Fairbanks-Morse from May, 1950–March, 1961. The units featured a 1,200-horsepower (890 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 and geared for a top speed of 60 miles per hour (97 km/h).

A total of 303 units were built for American railroads, 30 were manufactured (between August 1951 to June 1956) by the Canadian Locomotive Company for use in Canada, and 1 unit was exported to Mexico. Initially, H-12-44s were visually indistinguishable from their predecessor model, the FM H-10-44. However, beginning in September, 1952 the Raymond Loewy design elements were removed as a cost-saving measure: cab lines were squared-off, the slanted-nose styling was discontinued, and the roof visor was eliminated. The following year, the fairing over the battery box was removed and louvers added to reduce the possibility of battery explosions. None of the units were produced between May and October 1956, after which time the carbodies were shortened by some three feet and outfitted with a deeper side skirt.

Sixteen intact examples of the H-12-44 are known to survive today, all of which are owned by railroad museums or historical societies.

One H-12-44TS, Santa Fe 543, now resides at the Illinois Railway Museum.

Units produced by Fairbanks-Morse (1950–1961)[edit]

Railroad Quantity Road numbers Notes
Fairbanks-Morse (demonstrator)
1
76
to Yankeetown Dock Corporation 1
Atchison, Topeka and Santa Fe Railway
59
503–540, 544–564
3 custom built H12-44TS locomotives 541-543. 543 survives today
Ayrshire Collieries Corporation
1
1
to Thunderbird Collieries 1;
to Yankeetown Dock 3
Baltimore and Ohio Railroad
17
196–197, 310–319, 9722–9726
310–319 renumbered 9710–9719,
196–197 renumbered 9720–9721
Canadian National Railway
30
1630–1659
built by Canadian Locomotive Company
Central of Georgia Railway
4
315–318
Chicago and North Western Railway
9
1071–1072, 1110–1116
Chicago, Milwaukee, St. Paul and Pacific Railroad (“Milwaukee Road”)
48
1826–1847, 2309–2325
Renumbered 700–710, 715–744, 750–756 (not in order)
Columbia and Cowlitz Railway
1
D-2
Renumbered #700)
Ferrocarril de Chihuahua al Pacífico
1
70
Indianapolis Union Railway
3
19–21
Kentucky and Indiana Terminal Railroad
7
60–66
Minneapolis, St. Paul and Sault Ste. Marie Railroad (“Soo Line”)
5
315–319
Minnesota Western Railway
1
10
to Minneapolis, Northfield and Southern Railway 10
New York Central Railroad
27
9111–9137
New York, Chicago and St. Louis Railroad (“Nickel Plate Road”)
22
134–155
to Norfolk and Western Railway 2134–2155
Pennsylvania Railroad
16
8708–8723
to Penn Central 8327–8342
Sandersville Railroad
1
100
Renumbered 10
St. Louis-San Francisco Railway (“Frisco”)
4
282–285
Southern Pacific Company
43
1486–1491, 1529–1574, 1577–1596
Southern Pacific (Texas and New Orleans Railroad)
2
119–120
to Southern Pacific 1575–1576; renumbered 2373–2374
Tennessee Valley Authority
1
22
United States Army
20
1843–1862
U.S. Steel, Morrisville, Pennsylvania
8
GE9–GE16
Wabash Railroad
3
384–386
to Norfolk and Western 3384–3386
White River Lumber Company (Weyerhaeuser Timber Company)  
1
WTC 1
to Pacific Transportation Services 121 then transferred to Northwest Railway Museum where it is preserved in running condition
Yankeetown Dock Corporation
1
2
Total 336

Preservation[edit]

Several examples of the H-12-44 model have been preserved around the US and Canada.

  • Weyerhaeuser Timber Company #1 is preserved at the Northwest Railway Museum in Snoqualmie, Washington. While still being occasionally run after undergoing a full rebuild and engine overhaul. The locomotive is now ran for special events with its partner caboose White River Logging Company number 001 but is not run for regular service.
  • Former US Army #1843 is a part of the collection at the Rochester & Genesee Valley Railroad Museum in Rush, NY (south of Rochester, NY). It is in operable condition and is a key locomotive at the RGVRRM.
  • Former US Army later US Steel #1845 is currently stored at Fairless Hills, Penn. undergoing restoration. It is privately owned.
  • Former US Army #1847 is preserved at the Golden Gate Railroad Museum in Sunol, CA. It is currently operational and has been painted in "Tiger Stripe" scheme to represent Southern Pacific #1487.
  • Former US Army #1849 is preserved for static display at the Bluegrass Railroad Museum in Versailles, Kentucky.
  • Former US Army #1850, #1853 and #1861 are stored out of service at the Heart of Dixie Railroad Museum in Calera, Alabama.
  • Former US Army #1855 owned and operated (on excursion train) by Nevada State RR Museum, Boulder City, Nevada.
  • Former US Army #1857 is preserved at the Western Pacific Railroad Museum at Portola, California. It was used at the Sierra Army Depot at Herlong, California, located along the former Western Pacific Railroad. It is used in the museum's famous "Rent-A-Locomotive" program.
  • Former US Army unit #1860, worked at Sunny Point Military Ocean Terminal. It later went to Beaufort & Morehead Railroad in North Carolina as #1860, based at the Morehead City State Ports. The North Carolina Transportation Museum acquired the locomotive in 2004 after disposition from the State Ports.
  • Former US Steel #9121 is preserved by the United Railroad Historical Society of New Jersey. Restoration is underway at SMS Railroad in Bridgeport, New Jersey.

References[edit]

External links[edit]