diesel-locomotives

The EMD F7 is a 1,500 horsepower diesel locomotive built by General Motors' Electro-Motive Division between 1949 and 1953. The F7 was EMD's fourth model in the line of F-unit locomotives, and was by far the best-selling cab unit of all time. The F7...

In November 1959, EMD introduced the first of its second-generation diesels, the turbocharged GP20. The GP20 is a four-axle road switcher with a turbocharged 567D2 engine, capable of producing 2000 horsepower. Two prominent features of the original...