Train Master was the promotional designation for a diesel-electric railway locomotive model produced by Fairbanks-Morse and its Canadian licensee, the Canadian Locomotive Company. These 6-axle hood unit road switchers produced 2,400 horsepower (1.8 MW) and were the successor to the ultimately unsuccessful Consolidated line of cab units produced by F-M and CLC in the 1950s. In common with other F-M locomotives, the Train Master units employed an opposed piston-design prime mover. The official model designation was H-24-66 and rode on a pair of double equalized three-axle trucks giving it an C-C wheel arrangement.
Touted by Fairbanks-Morse as "...the most useful locomotive ever built..." upon its introduction in 1953, the 2,400 horsepower (1.8 MW) H-24-66 Train Master was the most powerful single-engine diesel locomotive available, legendary for its pulling power and rapid acceleration. While some railroads saw advantages in the Train Master's greater power, the perception on the part of others that the unit had too much horsepower (coupled with the difficulties inherent in maintaining the opposed-piston engine, inadequacies in the electrical system, and a higher-than-normal consumption of cooling water) contributed to poor marketplace acceptance of the Train Masters. Perhaps it was simply ahead of its time, as no competitor offered a locomotive with an equal horsepower rating until the ALCO RSD-7 entered production in January, 1954 (As an aside, the EMD SD24 did not arrive on the scene until July, 1958). Both F-M and CLC ultimately left the locomotive business.
Only one Train Master locomotive remains in active service — former Canadian Pacific Railway (CPR) H-24-66 #8905 is now owned by the Canadian Railroad Historical Association, which operates the Canadian Railway Museum in Saint-Constant, Quebec. Former Alcoa H-16-66 #721001 is privately owned, and has been preserved and stored by the CPR in Ogden.
|Canadian National Railway||3000|
|Canadian Pacific Railway||8900|
|Central Railroad of New Jersey||2401–2413|
|Delaware, Lackawanna and Western Railroad||850–861|
|Fairbanks-Morse (demonstrator units)||TM-1–TM-4 (TM-1 & TM-2 sold to the WAB and assigned #550 &|
#551; TM-3 & TM-4 sold to the SP and assigned #4800 & #4801)
|Reading Railroad||800–808, 860–867|
|Southern Pacific Railroad||4802–4815, 4800-4815 renumbered 3020–3035 in 1965.|
|Southern Railway (CNO&TP)||6300–6304|
|Wabash Railroad||552–554, 552A–554A|
|Canadian Pacific Railway||8901–8920|
|Chicago and North Western Railway||1510–1514, 1605–1612, 1668–1683, 1691–1700, 1901–1906|
|Chicago, Milwaukee, St. Paul and Pacific Railroad||2125–2130|
|Chicago, St. Paul, Minneapolis and Omaha Railway||150, 168–172|
|Tennessee Valley Authority||24|