I wonder if there is some list that would show what types of engines are compatible in a lash-up. I know that this might be a shot in the dark, but I thought I would ask. The reason is because:
I wanted to run my TMCC U33C (6-28235) with a GP30 (6-28840). But before I do any lash-up, I always do a test by setting up the lash-up, then separate the engine by about 12 to 18 inches to see if they stay within in inch or less at all speeds. The GP30 out ran the U33C, so I assumed they are not compatible. Different gear ratio?
I don't expect to see a detailed list of compatible engines by every Lionel number, it would be uncontrollable to say the least. But I now wonder if the GP30 would be compatible with my GP35's, or GP9's and that the U33C gear ratio is the reason they won't lash up.
I "assumed" that all TMCC and Legacy diesels would lash-up, but apparently not. Then comes the question of steam engines.
Otherwise, I guess the only way to know is to just run tests with ever engine I have and keep notes.
Ray