Baldwin DR-6

Baldwin DR-6 names a series of six-axle diesel locomotives for passenger trains that Baldwin Locomotive Works built between 1945 and 1948. The series had eight individual versions, each made for a single railroad, and only 39 locomotives were produced across all of them. Many carried the same model number, DR-6-4-2000, because the Baldwin designation encoded only the total axles, the driven axles and the power output, even though the versions differed. The one exception was a single unit for the Chicago and North Western Railway with one 1,000 horsepower engine, numbered DR-6-2-1000. The first version was a pair of demonstrators built in 1945, later sold to Ferrocarriles Nacionales de Mexico.