I built a nice straight wing and when I covered it with monocoat it warped it badly is there any way to straighten it with out removing the covering? Any advise would be great.

twostroke:

It's not uncommon to have a panel warp after covering.

What you have to do is hold the panel with the opposite twist, and reheat the covering.

Do it a little at a time, do the top once, then the bottom the next time. Switch back and forth, top to bottom, until you have it straight.

Sounds like a bother, and it is, but not much of one.

And as you continue to build, you'll get to where starightening a panel is just another part of film covering.

HTH

Bill.

Sounds like it sure beats taking the covering off and redoing I'll give it a try tomorrow thanks for that fast reply.

I'm just interested. When you do this and it's a warm day will the covering re-twist the wing?

gwk:

Generally the warp will not return unless the structure itself was built with an undesired twist. Desired twist meaning, for example, washout in a wing panel.

When doing maintenance inspections on your models it's not a bad idea to include a check for a warps. They can appear, usually just a touch of transmitter trim will take care of them for normal flight.

Bill.