I have a question. wiht aristo box car I want to instal kadee coupler body mounted but I don’t know the minimun curved radius the car accept.
With a standard Kadee coupler pocket, you should be fine with an R3 (7.5’ dia.) curve. Depending on the length of the car, they may also work down to an R2 (5’ dia) curve.They’re not going to couple together on curves like that, but they’ll stay coupled while traveling through them.
Later,
K