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Old May 30, 2003, 07:27 AM
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ParkScaleModels
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United States, PA, Loganville
Joined Feb 2002
4,462 Posts
Hi David...just my 2 cents here...I'm going down the same road as you in designing a 727 for the EDF50. I've spoken with quite a few people about airfoil selection for a park flyer like this. I wasn't convinced that an undercambered "flat plate" wing was the best choice. Because of the swept wing, I wanted something that would help to reduce stalling. What I eventually settled on was the GM15 airfoil...It's undercambered, but has a nice rounded leading edge. I'm also adding washout at the tips to help with tip-stalling.

Zeke
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