At 04:21 PM 9/26/2010, you wrote: >After talking to several builders at the Gathering, I believe that >most builders have used 2 layers on the aft as well. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
One layer from the forward spar aft to the trail edge of the wing is quite sufficient. My wing is built to plans and has held up very well for 385+ hours now. It has not been bent, folded, stapled, mutilated, de-laminated, or otherwise damaged in the seven years since first flight. The only thing that might damage a single layer is stepping on it. If you plan to step on the wing to enter / exit, you will need to internally brace the wing in that area and add an additional layer of glass, only in that area. Larry Flesner
