Curve Radius

I have some Track Laying Around and i want to figure out how too tell whta radius it is, is there way of telling what the raiuse is have a vurce track

mostly it is on the bottom.

I assume it’s sectional and all the same, clip it all together and measure the diameter center to center then half that to get the radius.

Ken.

This was answered in detail just a little while ago. Several ways to figure it out are posted in this thread:

http://www.trains.com/community/forum/topic.asp?TOPIC_ID=63216