Hi All I have a friend who bought an already built 4* 120.. His/my questions is hpw to setup the ailerons. His thought was to line the ailerons up with the bottom of the wing..

I've built 2 two 4* 40 and they ahve an APG to setup the ailerons?

Thanks Dan

The 4*120 also uses a APG guage to set up the ailerons. If you do no have a guage, se them up sighting from the side of the wing and in the middle of the top and bottom. the main thing is to set them both the same, then use a trim flight for fine adjustment.

Set the ailerons in line with the wing chord, i.e., lined up with the leading edge to the trailing edge of the wing.