Wind-Tunnel Investigation of Control-Surface Characteristics 14: NACA 0009 Airfoil With a 20-Percent-Chord Double Plain Flap
Description:
Report discusses the results of force testing of the aerodynamic characteristics of an NACA 0009 airfoil with a double plain flap; it consisted of a plain forward flap with a chord 20 percent of the airfoil chord and a plan rearward flap with a chord 15 percent of the airfoil chord. Comparisons were made to the characteristics of a 0.50c single plain flap. The lift, hinge moments, drag, and pitching moments are described.
Date:
June 1943
Creator:
Sears, Richard I. & Purser, Paul E.
Item Type:
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Report
Partner:
UNT Libraries Government Documents Department