The ALCO RSD-15 is a diesel-electric locomotive built by the American Locomotive Company of Schenectady, New York between August 1956 and June 1960, during which time 75 locomotives were produced. The
Green Bay and Western 2407, preserved at the Illinois Railway Museum
RSD-17 locomotive in Elgin County Railway Museum, St. Thomas, Ontario.
The ALCO RSD-12 was a C-C diesel-electric locomotive rated at 1,800 horsepower. 171 locomotives were produced. They were used in much the same manner as its four-axle counterpart, the ALCO RS-11, alth
ALCO RSD-15
…horsepower (1.79 MW); it superseded the almost identical ALCO 244-engined RSD-7, and was catalogued alongside the similar but smaller 1,800 hp (1.34 MW) RSD-12, powered by a 12-cylinder 251-model V-type diesel engine. The locomotive rode on a pair of three-axle Trimount trucks with all axles powered by General…
Ferrocarril del Pacifico 504 in Nogales, Sonora, Mexico, in March 1979
ALCO RSD-12 Lake Superior & Ishpeming RR No. 1804 resting in a shipyard in Escanaba Michigan in 2010.