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Electro-Motive Diesel (abbreviated EMD) is a brand of diesel-electric locomotives, locomotive products and diesel engines for the rail industry. Formerly a division of General Motors, EMD has been owned by Progress Rail since 2010.
The following is a list of locomotives produced by the Electro-Motive Corporation (EMC), and its successors General Motors Electro-Motive Division (GM-EMD) and Electro-Motive Diesel (EMD). Streamlined power cars and early experimental locomotives
Built by the Budd Company, but designed by EMD [1] 532 Baltimore and Ohio #50 August 1935 1,800 hp B-B Baltimore and Ohio Railroad (B&O) Chicago and Alton Railroad (C&A) Gulf, Mobile and Ohio Railroad (GM&O) 1937 (B&O) Stored at the National Museum of Transportation in St. Louis, Missouri: Built by General Electric (GE), but designed by EMD [2] [3]
Under ownership of Dieselmotive Company, Inc. (BUGX) BUGX 1552 October 1955 SD9-3 Chicago, Burlington and Quincy Railroad (CB&Q) Burlington Northern Railroad (BN) Burlington Northern and Santa Fe Railway (BNSF) - Stored in South Haven, Kansas: Nevada Northern 204 February 1956 SD9E Southern Pacific Transportation Company (SP) BHP Nevada ...
The locomotives were all sold to customers in the United States. It was the first model in EMD's very successful F-unit series of cab unit freight diesels and was the locomotive that convinced many U.S. railroads that the diesel-electric freight locomotive was the future. Many rail historians consider the FT one of the most important locomotive ...
Their twin V-12 diesel engine layout, Blomberg A-1-A trucks, and 57 ft 1 in (17.40 m) wheelbase would become the standard for all future E models. EMC/EMD has built all of its major components since 1939. The E3, E4, E5, and E6 had the new GM-EMC 567 purpose-designed locomotive engines, for a total of 2,000 hp (1.5 MW).
For manufacturer EMD, the construction of the world's most powerful single frame locomotive was a sign of the company's dominance of the North American diesel locomotive market, with only GE Transportation an equal competitor. The DDA40X also pioneered a number of new technologies that would go on to be incorporated in future EMD designs.
The Southern Pacific Transportation Company had rebuilt a total of 167 EMD SD45 units into EMD SD45R diesel locomotives at their own Sacramento Shops under the Southern Pacific's M-99 rebuild program and renumbered their units as 7400 through 7566. Most of them in their SD45 form were classified by the Southern Pacific as EF636-1, EF636-2 ...