Reply to "Track Curve Radious Requirements"

geysergazerOGR Forum Member SUPPORTING MEMBER

O72 has a [nominal] circle diameter of 72 inches and thus a radius of 36". Nominal because some track brands/styles are measured center-rail to center-rail (Lionel Fastrack) while others measure outside edge of ties to outside edge of ties. For me this is a case of bigger-is-better because to me trains look more realistic on broader curves but it depends on your interests and what you are trying to do. And yes, big locomotives require big curves, some a MINIMUM of O72. I use O72 curves with the exception of an O36 curve that I hid in a mountain so I didn't have to look at it. cool

2/19/2011:22 AM

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