Help! I'm trying to ballance my Magnum ARTF and the instructions say 120-130mm from the wing root. I'm not sure what the wing root is! Is it from the leading edge, or from the trailing edge? Or maybe from the bolt plate?

Thanks,

Adrian

I would say 4-3/4 inch from the most forward part of the wing, or the most forward of the center of the wing where it is glue together..

My understanding is the wing root is where the wing meets the fuselage. Nobody has ever said otherwise.
Measure 120-130mm back from the leading edge at the fuselage. To start with set the CG at 120mm back from the leading edge at the wing root.