Any scale N&W Class "J" 4-8-4 and the 3rd Rail N&W K2a, neither of which I have
Of the engines I do have, My MTH RailKing Imperial 0-6-0 and Atlas GP9 with MTH PS2 inside, both lettered for Seaboard Air Line. I run both these engines a lot, followed by my Railking Seaboard NW2.
One of these will most likely be replaced, as soon as my 3rd rail Seaboard E7 arrives!!!