On Dec 5, 2007, at 5:26 PM, Peter Treby wrote: > I'm trying to "get at" why a GP is said to generate lift. I'll go for > a paddle rather than wasting any more keystrokes. Take a look at http://www.grc.nasa.gov/WWW/K-12/airplane/foil2.html Select "ellipse" as the foil shape, you will see that symmetrical shapes generate lift just fine. Any shape with an angle of attack is capable of generating lift. If someone has implied to you that a GP is somehow unique in this, they were incorrect. The beauty of complete symmetry is the lift will be the same going forward or back, up or down. Nick Schade Guillemot Kayaks 824 Thompson St Glastonbury, CT 06033 USA Ph/Fx: (860) 659-8847 http://www.guillemot-kayaks.com/ *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Wed Dec 05 2007 - 14:38:07 PST
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