EMD SD60 series

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The EMD SD60 is a series of 3,800 horsepower (2,800 kW), six-axle diesel-electric locomotives built by General Motors Electro-Motive Division, intended for heavy-duty drag freight or medium-speed freight service. It was introduced in 1984, and production ran until 1995. The SD60 is essentially identical to the SD50 externally, but has a different prime mover, the new 16-cylinder EMD 710G3A, and a computer-controlled electrical system. Chicago & North Western's railroad manual estimated that the SD60 is 3% more fuel efficient than one SD50, while a pair of SD60s was up to 16% more efficient than three SD40s pulling a standard coal train. Norfolk Southern has been modernizing their old SD60s since 2010 into SD60Es, a model specific to NS. This was the original model, and had a conventional hood unit configuration with the 40 Series (spartan) cab first employed on the SD40-2. The SD60F was ordered and was operated by Canadian National and has a full-width cowl body and crashworthy "safety cab" with a four-piece windshield. CN retired the SD60F in 2017, however a handful were sold off and are still working on two shortlines in North Dakota. Dakota, Missouri Valley and Western Railroad has six, and the Northern Plains Railroad has five. 14 units are currently on the Aberdeen, Carolina & Western Railway in North Carolina.