Is it possible to build a 3-rail locomotive with hi-rail wheels, that is rated for O-36 minimum curves to not have the large air gap between the truck & the underside of the frame?
I have never owned a Lionel locomotive but even the MTH Norfolk Southern SD70M-2 with scale-wheels that I owned had the large gap that some hobbyists on this forum dislike. The only models that I own that don’t have this gap are the brass, 2-rail, long sold-out models like the 10-year-old SD70ACe in the following photo. This model had an absolute minimum curve of O-81 (40.5” radius) with a recommended curve of O-99 or higher.
These are just my opinion,
Thanks,
Naveen Rajan