In 1966, the Diesel Division of General Motors of Canada Ltd. (GMD) constructed eight GP40TC locomotives, essentially GP40 diesels on SD40 frames to accommodate Head End Power (HEP) equipment, for use on Government of Ontario (GO Transit) commuter trains. (The "TC" in the model designation stood for "Toronto Commuter.") Because it was thought that there was a likelihood that the new commuter system would fail, and so the locomotives were originally painted in a unique black paint scheme with Canadian National reporting marks, so the locomotives wouldn't require a full repaint if moved into freight service. However, GO Transit was a success, and these diesels repainted into GOT's green and white "Hockey Stick" paint scheme. As with the rest of the fleet, these locomotives carried a variety of roadnumbers, in this case CN 605, GOT 605, GOT 9805, GOT 505 and, when sold to Amtrak in 1990, AMTK 197 and, today, AMTK 525. Amtrak has recently rebuilt these, and they are now designated as "GP38H-3" (the "H" indicating they are equipped with HEP, and the "-3" showing they have been rebuilt. As part of the latest rebuilding, the nose was shorted, fans on the roof were relocated and the signal box on the right-side of the nose was enlarged. (Wilmington, Delaware – February 1, 2023). Photographed on railroad property with permission and full PPE.
