"I have o-27 track (lionel brown-tie, right) that is 42" diameter. Most stuff with kadees willl work with that"
Yeah, I had an industrial switching layout with those O-42 curves and ran body mounted couplers with no problem. Longest cars I tried were 50 footers so passenger cars or modern freight cars might not work but they'd look pretty bad on O-42 anyway. The O scale Kadees have a pretty wide gathering range compared to real couplers which can run on 90 foot radius on 40 foot cars(90 foot in O scale is 22.5 inches or in the O-42 ball park) ..DaveB
