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Check out the 2 new items in the links section

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I just placed links to two sources of airfoil information, and aerodynamics in the Plans, tools, databases, modeling supplies, etc. section that is accessed by clicking on the "Links" tab in the blue bar just below the photo of the Navy SNJ making a low pass down our runway. The links are to the University of Illinois Applied Aerodynamics Group's airfoils database, and the second is to an airfoil tools website that contains a wealth of information about airfoils and also provides helpful free tools.   Professor Michael Selig is responsible for much of the information on the UIUC site. Lots of good stuff at these two sites. If you need a file for an autocad program or just want to know more about a specific airfoil, learn about Reynolds numbers, and much more you'll really appreciate these. 

Thermals---I need thermals!
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Amazing how much research and math goes into developing efficient airfoils. It's interesting that you effectively modify an airfoils shape with flaps, ailerons, slats etc. and totally change it's characteristics. Bernoulli would be proud. Check it out:

Pressure
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