Originally Posted by
jester_s1
The screw wasn't impact damage. If it's a screw going into metal, you must use loctite on it. Don't get loctite on anything plastic though as it will weaken it.
And yes, if your Debonair was built according to the original plan it does have bad stall characteristics. The leading edge is too sharp and the top of the airfoil isn't rounded so you are going to get a snappy plane. Switching to the "RNAF" wing design will help some, but the sharp leading edge will still keep it from flying as gently as a standard balsa trainer.
This is or was a new engine. Never thought I'd have to locktite the screw. The screw holds the throttle arm to the carburetor barrel. That may explain why I stalled. I was doing a nice flight until then. Now I know better. I've started using locktite on a few things.
The top of my wing has a nice rounded airfoil shape to it. I did not do the bend that I have seen others do. Bottom is flat with front end slightly raised. I thought it was a good airfoil shape. Any way, I have the wing done. Decided it needs contrast paint then mate it to the fuselage. I'm going to give the Deb one more try. Next I will build a Sig Kadet. That may be better for me.