Notes on low-lift buffeting and wing dropping at Mach numbers near 1

Paul E. Purser
naca-rm-l51a30
Mar 1951


A study of the available transonic Mach number data on low-lift buffeting, wing dropping, and changes in the angle of zero lift for symmetrical airfoils indicates that these phenomena are allied and are probably the result of shock-induced separation. The study has indicated that there are combinations of airfoil-thickness ratio, aspect ratio, and sweep which may allow flight through the transonic speed range without experiencing buffet or wing drop at low lift.

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