I'm working up a plan for an urban switching layout (car float to industry with tracks on the street and in alley sorta thing) and wanted to know the minimum practical turning radius of the 44-tonner from Bachmann, as well as the Atlas GP-7/9. If possible, I'd like to use 4" radius curves to allow for tight city street kinds of clearance. And if these can't handle it, does anyone have suggestions for modifications to enable such a thing? Otherwise, how about suggestions for other locomotives that have the ability to take sharp curves. Would need to be American locomotives that might be used from the 1950s through 1980s time periods.
OK, your mission, if you choose to accept it, is to answer these questions for me. This board post will self-destruct in 5 minutes...