Rotory wing aifoils
 

I am working with a manufacturer to make some prototype rotor blades. I have quite a few ideas on the planform, but I need help with some good airfoil sections. I am looking for several airfoils to acommodate the different (intrinsic) angles of attack of the rotor blade. Can someone out there offer some assistance?

I am looking for some symetrical sections that don't really spike up the drag with high angles of attack. Does anyone have some suggestions?


If you e-mail me at home I can respond :[email protected].


Thanks
Paul Soha

Rotory wing aifoils
 

Just off the top of my head I'd say the Selig 8020. It was designed for all moving stabilators and has good lift coefficients for a symetrical airfoil. That's if you want a symetrical airfoil for inverted.....