Hello!

I just finished the left wing on the LT-40. The wings is bowed in the center. Will covering the wing fix the problem since the least amount of pressure flattens the surface. My table is 3/4" pressed wood with a 1/2" piece of tempered glass. I beleive I have done my best to have a flat work surface but I may have a problem. Please tell me the wing will straighten...

Perry

Bowing the wing in the opposite direction while shrinking should do the trick. Even after the covering is shrunk, you can bend the wing, alowing some wrinkles to form, and draw them out with a heat gun. If it's not to much, say 1/8"-1/4" you should be fine. In my opinion, a LT-40 is one of the best flying trainers on the market, and a slightly bowed wing aint gona amout to a hill of beans! Finish the plane and have fun with it!

The biggest problem you will have with a bowed wing is keeping the ailerons straight. If bent they will not hinge properly and probably bind when moved. Greenriver RC has your answer. The LT40 ARF that I patched together had a bent aileron. Much trouble with binding.