Leading-Edge Design for improved Spin Resistance of Wings Incorporating Conventional and Advanced Airfoils 851816
Discontinuous 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.
Citation: Stough, H., Jordan, F., DiCarlo, D., and Glover, K., "Leading-Edge Design for improved Spin Resistance of Wings Incorporating Conventional and Advanced Airfoils," SAE Technical Paper 851816, 1985, https://doi.org/10.4271/851816. Download Citation
H. Paul Stough, Frank L. Jordan, Daniel J. DiCarlo, Kenneth E. Glover
NASA Langley Research Center Hampton, VA
Aerospace Technology Conference and Exposition