Recent content by philthepile

Thank you for the quick reply. I was not aware that airfoils relying on a non zero angle of attack for lift were so common.

I recently found a site with a lot of NACA airfoil profiles given as coordinates. When I looked at the NACA 0008 and 0009 profiles I found that they were symmetrical about the horizontal (they had no camber). Is there something I'm missing or did early airfoils have to be angled to provide lift?