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On Sun, 30 Nov 2003, Ron Wanttaja wrote:
On the opposite side of the spectrum, I'm considering goofing around with some homemade VGs on my Fly Baby next year. Figured I buy a batch of 1/4 - 1/2" aluminum angle and cut up a batch. Anybody have any rules of thumb regarding size, placement, stupidity of the idea, etc.? Better Yet, Jim Price (altitude record holding Long EZ) shows how to make VG's from a strip of plastic panel edge moulding. It cost about $1 at Home Depot for an eight foot length. He offers instructions on placement, IIRC we put two on 20 degree offset, at about 20 percent chord, every ten inches or so. Better check with Jim. You stick them on with silicone caulking. Work great at increasing lift. I could fly so slow that my ailerons felt too mushy, took mine off. He can fly at 50 mph. George Graham RX-7 Powered Graham-EZ, N4449E Homepage http://bfn.org/~ca266 |
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