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layout minimum size

I took a 40 inch by 60 inch plywood, glued and screwed some 1x2 and 1x3 for support underneath and glued foam board on top and painted it and added grass for a HO layout that has 2 straight on each side and a spur in the middle.  The idea is for my son to slide it under his bed when not in use.  I want to build an O scale for my other son.  What is the minimum for O scale using 31 inch MTH track?  I don't want to buy more track to get 27 inch radius. 

Original Post

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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