Eduardo Navarrete wrote: > thanks for your answers. i want to put the wood sheets > between the ribs. do you know the thickness of the > polyurethane foam that are between the ribs ??
What I had in mind was stretching very thin sheets (like 1mm or less) over the ribs so that no sanding is required. Then cover that with whatever number of layers of fiberglass that the plans call for. I'll bet that would result in a skin that would never delaminate, unlike fiberglass on urethane foam. I think KR foam is normally 1" and 2" thick, depending on where it is in the wing. I'd think if you used balsa that thick and tried to sand it to shape, it would be fairly heavy. Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net --------------------------------------------------------------
