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Oregon Coast Scenic Railroad to operate steam doubleheader
Are there any complications to doubleheading two different types of locomotives? In this case a rod locomotive and a Heisler. The cylinders direction. In this case to the rear and towards the middle of the roadbed. Does that matter? How about a Heisler and Shay. Forces going 45 degrees inwards and off balance straight down.
Many combinations of power have been run the last 100 years. What matters is that there is enough power to move the train. The maximum speed of the slowest locomotive must not be exceeded. NYC liked to add an 0-8-0 to push the Twentieth Century Limited from one city. When the engine did not get uncoupled soon enough it had to be rebuilt after arriving at the next city at passenger train speed.