RE: Plane Dives to left on Hand Launch
[quote]ORIGINAL: rcwilbur
"It looks as though the mounting area for the wing has been damaged and causes the wing to sit slightly low on the left side (when looking from the rear of the plane) as compared with the elevator surface. It is very slight--almost not noticeable. "
From what I read here, it sound like the wing and horizontal stab are not on the same lateral plane. An easy way to check is to put the wing on in its normal flying position, elevator in the down position and sight down the center of the fuselage. Now move up to where the outer tips of the stab at the hinge line seem to line up with the trailing edge of the wing. If you have one line up before the other, then you wing saddle is damaged and lateral alignment is causing a rolling motion. Another way to look at it - the stab will want to fly level and if it's not aligned it'll cause the plane to roll. If this the case, you'll have to shim up the wing so its re-aligned with the stab.
Hogfllyer