Testing GGD 21” O scale 2 rail passenger cars minimum radius. These are stock cars with Kadee medium shank couplers. Listed minimum radius is 48”. I may have some hidden sections of the new layout that are 36” by necessity. I wanted to see if it was possible so I built a little test track with a curve-straight-reverse curve setup. There is no easement here either which would help even more. Good to know that this is possible in a pinch.
