Scott Bailey wrote: > My question is that since the underside of the wing (between the spars) > is essentially a flat area, could I lay up a fiberglass "sheet" on a > table that, once dried, could be cut to fit and bonded as done with > wing skins? That way, it seems that the need to "refoam" the wing > could be dispensed with. Comments?
I don't think I'd do it that way. A layer or two of fiberglass has just about no stiffness to it without some foam underneath. I think you could almost count on it deforming just due to airloads. It's awfully easy to stuff some foam in there and sand to shape, or use some 2 part urethane poured into the holes (if the thing is upside down) and then sand to shape. Or if it's right side up, you could use sheet foam and 2 part urethane to hold it in place. You're going to need to rough up the area around the hole anyway, and you'd be doing that as you sanded the foam to conform to the airfoil shape. Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
