The aerodynamic characteristics of six commonly used Airfoils over a large range of positive and negative angles of attack (1931)
NASA Technical Reports Server (NTRS) · leaf 6
Angle of attack, a, Pig.l Airfoil, N.A.C.A. M6. Heynold1 b Number 3,100,000- V.D.T. tests,526 and 640. Aspect ratio,6- Tunnel wall correction applied. Dates, 3/31 and 7/31,
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
