Hello all
What length lines would a person use for a 40 size engine on a stunter? I am looking at putting it on a 48 to 55 inch plane. (ws) I have several 40 size engines and a 60 size that I can do something with.
RWCherry
Mt Sterling KY

.018, 60' is a good place to start with a 40 size plane.

AMA says .015 are good for your 40 size. .018 for your 60 size!!! 60' is a good start