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Free-flight measurements of the zero-lift drag of a slender wing at Mach numbers between 1.4 and 2.7

C. Kell

Abstract

The total zero-lift drag of a particular slender-wing design has been rneasured using the free-flight technique and from these measurements an estimate of the wave drag has been made. The results suggest a value of wave drag some 20% higher than that given by supersonic thin-wing theory; the accuracy of this result is shown to be very dependent on the accuracy with which skin friction is estimated.

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Available abstract

Key concepts: Drag, Parasitic drag, Lift-induced drag, Lift-to-drag ratio, Wing, Wave drag, Supersonic speed, Mach number