Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The EMD TR1 was a two-unit "cow-calf" diesel locomotive built by General Motors Electro-Motive Division of La Grange, Illinois in 1941. Two pairs were built for the Illinois Central Railroad, the only purchaser. The locomotive units strongly resembled the EMD NW3, with a long frame, Blomberg B road trucks, and a large cab connected to a wide area of hood that tapered going forward. The locomotives incorporated the machinery of the EMD FT in switcher bodywork; a V16 EMD 567 diesel engine of 1,350 horsepower in each unit.