The ALCO RSD-12 was a C-C diesel-electric locomotive rated at . 171 locomotives were produced. They were used in much the same manner as its four-axle counterpart, the ALCO RS-11, although the six-motor design allowed for better tractive effort at lower speeds.
Original buyers Railroad Quantity Road numbers NotesChesapeake and Ohio Railway 10 6700–6709 Renumbered 2007–2016, 2014 and 2016 were sold to Baltimore and Ohio Railroad, then were purchased by Utah Railway on February 23, 1976.Lake Superior and Ishpeming Railroad 4 1801–1804 New York, Chicago and St. Louis Railroad (“Nickel Plate Road”) 9 325–333 to Norfolk and Western Railway 2325-2333 in 1964Pennsylvania Railroad 25 8655–8679 to Penn Central 6855–6879; then to Conrail 1101-1123 and rebuilt into Alco mt6. 14 went to Norfolk Southern and 9 to CSX 1006-1016 with two retired upon Conrail purchase. All retired in 2020.
SEE: Winchester and Western 107 and 120, EX CR MT 4's are in Gore, Va. 107 has an ex IHB SW cab and controls added so it can operate its mother unit.Southern Pacific Company 21 7000–7020 Renumbered 2950–2970, rebuilt from RSD-5 locomotives with a new motor and carbody, retaining generators and bogeysPercy, Richard. "Southern Pacific RSD-12 Info Page." Obtained 5/8/18.Ferrocarril del Pacífico 19 1502–1508, 509–520 Ferrocarriles Nacionales de México 73 7400–7472 Companhia Siderúrgica Nacional (Brazil) 10 3501–3510 Built by MLW, ; to RFFSATotal 171
Preservation
Lake Superior & Ishpeming #1804 partially survives in a shipyard in Escanaba, Michigan. It has no prime mover. Nickel Plate Road #329 is preserved at the Mad River & NKP Railroad Museum in Bellevue, Ohio. Southern Pacific #2954 and #2958 are preserved at the Southern California Railroad Museum in Perris, California. Both units are undergoing cosmetic restoration, with the possibility of future operational restoration. Both of these units are rebuilt from RSD-5s. Southern Pacific #2962 is preserved as Paperton Junction Southern #7012 at the Arkansas Railroad Museum in Pine Bluff, Arkansas.
Gallery
See also List of ALCO diesel locomotives List of MLW diesel locomotives
References
Komanesky, John et al. The Diesel Shop . Retrieved July 3, 2008
External links