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#16
August 1st 03, 10:36 PM
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Corrie wrote:
Peter Dohm asked, quite reasonably What are these hinges supposed to hold??? The spar. I'm thinking about the possibility of considering the feasibility of investigating a folding wing. The spar would have a hinge installed top and bottom. To fold the wing you remove the bottom pin. GW of the aircraft in mind is ~1500lb. It would need to be able to take 6 g's, hence my concern about strength. The sailplane may have used standard piano hinges, but it was about 500 lbs, and probably not stressed for more than 3 g's. The Dyke Delta does this with a 1/2" pin that passes through fittings in the top and bottom spar. Max gross is 1950lbs. -- ----Because I can---- http://www.ernest.isa-geek.org/ ------------------------ 
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