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Old 09-15-2002 | 05:06 PM
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Sport_Pilot
 
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From: Acworth, GA
Default GP DR1 Triplane flapperons or not.

Looks good! Had a problem with one of the dowels. I thought I had it fitting well in the hole but when I was gluing it in it resisted going in, put more pressure on it and it slid all the way in. I couldn't get it out before the glue set, so I drilled it out and cut a 1/4" dowel and put that in. But I didn't get it perfectly centered so I made some adjustments by sanding on side of the dowel. Now I have checked that the wings are parallel and that seems close enough about 3/32 at the wing tip. But I notice I have just over 1 1/2 positive incidence on the bottom wing, compared to the middle wing. Great Planes doesn't list what it should be, but the profile drawing appears to have some positive incidence on the bottom wing. I think positive incidence on the bottom wing may be a good thing, that way it will stall before the mid and top wing.