The Effect of Rivet Heads on the Characteristics of a 6 by 36 Foot Clark Y Metal Airfoil (1933)
NASA Technical Reports Server (NTRS) · leaf 12
N.A.C.A. Technical Note … Angle of attack, degrees Figure 7.-Variation of lift and drag with angle of attack for plain airfoil and airfoil with rivets.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
