The Diehl wing skin kit uses fiberglass foam sandwich for ribs per the Diehl plans. The foam is 1/4-inch thick and uses one BID fiberglass on each side. Glue it in place with chopped cotton flox.
Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA ________________________________ You can get the same effect by covering the surface of the foam ribs with a layer of fiberglass before adhering the skin foam...that's what I plan to do. https://sites.google.com/site/mykr2stretch/ On Nov 4, 2012 12:39 PM, "david" <dfei...@centurytel.net> wrote: > Noted in Herb Gillespies KR2 design review (decades ago) that as designed > the torsional stifness for the wings was mostly handled by the wing skin > alone. When building mine I epoxy glued 1/16" poplar ply to each side of > the foam ribs (between the spars only) and tied these the spars with > triangle wood strips. Makes a good ladder truss. > > _______________________________________
