FM "H10-44" Locomotives

The FM H10-44 was the first in the builder's switcher line. It was constructed during the latter half of the 1940s and sold relatively well for Fairbanks Morse in comparison to other models.

The H10-44 was originally meant for use only in yard service. However, as is so often the case in the industry railroads found the switcher suitable in all types of work from yard service to branch line duty.

For Fairbanks Morse it faced the same issues as Baldwin and the American Locomotive Company.

The company could produce a fairly reliable, rugged, and efficient switcher (for instance, its H12-44 model sold even better). However, when it came to main line models designed for heavy and/or extensive freight/passenger service issues arose. 

In any event, H10-44's could be found in operation on many Class Is from time they were cataloged in 1944 through the late 1970s and early 1980s.  Despite FM's problems with main line road-switchers, railroads liked their switchers, which sold quite well.  

Milwaukee Road H10-44 #766 is tied down in Ottumwa, Iowa during August of 1978. The Milwaukee operated several Fairbanks-Morse units well into the 1970's. Rob Kitchen photo.

The FM H10-44 began production in August of 1944 capable of producing 1,000 horsepower using Fairbanks Morse's 2-cycle 38D8 1/8 opposed-piston prime mover.

The switcher featured a B-B truck setup and a high hood with the cab off-set to one end.

The H10-44 received its beveled edges and curves from industrial designer Raymond Loewy; a man hired by numerous railroads around the country for various styling work from diesels and steam to even electric locomotives. 

Fairbanks Morse outsourced internal components for its locomotives, such as traction motors and generators, to Westinghouse Electric a move also made by Alco and Baldwin.

Fairbanks-Morse's Catalog Of Diesels





H16-66, "Baby Train Master" 

H24-66, "Train Master" 

FM's "Erie Builts" 

FM's "C-Liners" 

While some railroads and shop forces complained of FM's complicated opposed-piston design no one could argue with the incredible tractive effort and pulling power its locomotives offered.

For instance, the H10-44 could produce 72,000 pounds of starting tractive effort and 34,000 pounds continuous. Similar models offered by Alco and EMD could simply not match this; this ability, among other things, helped immensely in getting a train moving quickly. 

You may be wondering what was behind FM's switcher designation, which was somewhat similar to Baldwin's early diesel locomotive models, although it was much easier to understand and did not include so many letters, dashes, and number designations.

Using the FM H10-44 as an example the “H” stood for Hood unit, “10” was for 1,000 horsepower, and each 4 meant four axles and four traction motors.

Baltimore & Ohio H10-44 #9207 is seen here at Riverside Yard in Baltimore, Maryland on January 19, 1969. This unit was built as #302 in 1948. Roger Puta photo.

While the FM H10-44 was only marginally successful from a sales standpoint it is not necessarily because Fairbanks Morse's models in general were unreliable, as was usually the case with Alco (early on anyway) and particularly Baldwin. 

Reliability with FM's diesel locomotives has often been questioned but I believe the issue was mostly due to the fact that FM's opposed-piston prime mover was difficult to maintain and far different from the standard designs being offered by the other builders.

For instance, in regards to the Train Master, it has been noted by John Kirkland in his book The Diesel Builders Volume 1 that the locomotives performed admirably for more than 20 years on the Southern Pacific due to a maintenance team that understood the model, despite taking a daily beating in freight service. 

Fairbanks Morse H10-44 Production Roster

Owner Road Number(s) Quantity Date Built
Apache Railway100, 20021947-1948
Baltimore & Ohio300-309101948
Chehalis Western Railroad492-49321949
Chicago & North Western1036, 1048-1065, 1070, 1082211946-1950
Chicago, St. Paul, Minneapolis & Omaha (C&NW)94-9851947-1948
Columbia & Cowlitz RailwayD-111949
Denver & Rio Grande Western120-12341948
Fairbanks Morse (Demo)10L4511949
Indianapolis Union Railway10-1891949-1950
Kentucky & Indiana Terminal48-52, 55-59101947-1949
Milwaukee Road1802-1825241945-1950
Minnesota Western Railroad5111946
Monon Railroad1811946
New York Central9104-911071949-1950
Nickel Plate Road125-13391948-1949
Pennsylvania5980-5999, 9080-9099, 9184-9196, 9288-9299661948-1949
Pittsburgh & Lake Erie (NYC)9100-910341946-1948
Pittsburgh, Chartiers & Youghiogheny Railway111949
Santa Fe500-50231945-1948
St. Louis-San Francisco Railway (Frisco)270-281121948-1949
Terminal Railroad Association Of St. Louis (TRRA)700-70341947-1949
Union PacificDS1300-DS130451945-1947
Wabah Railroad380-38341946-1949
Weyerhaeuser Timber Company48111948

St. Louis-San Francisco Railway H10-44 #280 is seen here in Tulsa, Oklahoma during the 1960's. The Frisco owned 12 such units, acquired between 1948-1949. Mac Owen photo.

By the time production had ended on the H10-44 in April of 1950 Fairbanks Morse had sold 195 units to a wide range of Class I and smaller railroads (the PRR purchased the most, 55).  

Today, at least three FM H10-44s are known to be preserved, all of which are former Milwaukee Road units; #760, #767, and #781.

The former unit #760) was the first ever produced by Fairbanks Morse and is one of the only examples of its diesels that is still in operating condition at the Illinois Railway Museum.

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Header Photo: Drew Jacksich

Wes Barris's is simply the best web resource in the study of steam locomotives. 

The amount of information found there is quite staggering; historical backgrounds of wheel arrangements, types used by virtually every railroad, preserved and operational examples, and even those used in other countries (North America and beyond). 

It is difficult to truly articulate just how much material can be found at this website.  It is a must visit!

Researching Rights-Of-Way

A popular pastime for many is studying and/or exploring abandoned rights-of-way. 

Today, there are tens of thousands of miles scattered throughout the country.  Many were pulled up in the 1970's and 1980's although others were removed long before that. 

If you are researching active or abandoned corridors you might want to check out the United States Geological Survey's (USGS) Historical Topographic Map Explorer

It is an excellent resource with thousands of historic maps on file throughout the country.  Just type in a town or city and click on the timeline of maps at the bottom of the page!