Syd / Warren et al, My question of ragging Forney wings was largely rhetorical. The reason why the Forney ribs would be unsuitable makes a lot of sense. I remember other airplane ribs I have seen (for rag wings) always had the raw edge folded under some 15-30 degrees so the edge wouldn't cut into the fabric. The bottom line is that Forney made between 250 and 350 changes to the Erco design BEFORE they built their first airplane. Had they started with a rag wing, presumable of the Erco design, I would have a chance. But I am quite sure that never happened. Accordingly I am screwed. Now if I could find a 415 owner stuck with a metalized set of wings screwing up his/her performance who wishes they could go back.... While I still would have the wrong wings I.E. 415-, no one but an expert would ever be able to tell, and then only because the ribs had the edge folded under a little.....
Dick
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