14 commonly used airfoils and 10 N.A.C.A. airfoils tested in N.A.C.A. variable-density wind tunnel at Reynolds Number of 3,000,000; data for structural design in inverted flight; for airfoils of given thickness, ratio minus coefficient of lift maximum over plus coefficient of lift maximum decreases as mean camber increases; for airfoils of given mean camber, ratio tends to increase as thickness increases.
Aerodynamic characteristics of airfoils at negative angles of attack
Nat Advisory Committee Aeronautics -- Tech Notes
1932
11 pages
26 Supp plates
Report
English
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