> I seem to remember > reading in Trains about EMD sending a A-B-B-A set of F7 diesel > locomotives to the N&W in the early 1950's. Thank you for your help. Yea I think this was in 1952 when they were running the test runs steam/diesel? I made one of the steam test runs,1239 I think,Wm'son to Ports. R F Smith