Leading-edge design for improved spin resistance of wings incorporating conventional and advanced airfoilsDiscontinuous wing leading-edge droop designs have been evaluated as a means of modifying wing autorotative characteristics and thus improving airplane spin resistance. Addition of a discontinuous outboard wing leading-edge droop to three typical light airplanes having NACA 6-series wing sections produced significant improvements in stall characteristics and spin resistance. Wind tunnel tests of two wings having advanced natural laminar flow airfoil sections indicated that a discontinuous leading-edge droop can delay the onset of autorotation at high angles of attack without adversely affecting the development of laminar flow at cruise angles of attack.
Document ID
19860053587
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stough, H. P., III (NASA Langley Research Center Hampton, VA, United States)
Jordan, F. L., Jr. (NASA Langley Research Center Hampton, VA, United States)
Dicarlo, D. J. (NASA Langley Research Center Hampton, VA, United States)
Glover, K. E. (NASA Langley Research Center Hampton, VA, United States)