I am still busy with the rebuilding of my WAFs, and I am hesitating between making plywood ribs, or foam ribs.
After having checked the plans, I get the feeling that the plywood ribs are in fact there just in order to hold the foam during wing construction, and little else. So, it seems that I can do whatever suits me best. Am I right in assuming that? Questions: - If I go for plywood ribs, which thikness plywood should I use? - What should I coat the plywood with? - If I go for foam ribs, can I use high density extruded polystyrene foam? Serge Vidal KR2 ZS-WEC (redoing the WAFs) Paris, France