ORIGINAL: timothy thompson
its common sense to glass the center section . Experienced modelers know this. I think GP has amended the instructions and mention glassing. I do rolls and loops but im very careful on the power.
This old wives tail just won't go away. Glassing the center section of properly joined wing halves does nothing...
All you're doing is reinforcing the sheeting. If the wing is so poorly designed or joined that the sheeting is sharing the load than it's going to fail somewhere else anyway, unless you glass the whole thing. Case in point, look at the pictures of this wing. It was glassed, and broke at the edge of the fues! You will have a hard time finding a picture of an epoxied joint where the epoxy failed and not the wood.