4Anderson J D. Introduction to flight. 5th ed. New York: McGraw-Hill Science, 2004: 31-33.
5Whitcomb R T. A design approach and selected wind tun- nel results at high subsonic speeds for wing-tip mounted winglets. NASA TN D-8260, 1976.
6Flechner S G, Jacobs P F, Whitcomb R T. A high sub- sonic speed wind tunnel investigation of winglets on a rep resentative second-generation jet transport wing. NASA TN D-8264, 1976.
7Maughmer M D. Design of winglets for high-performance sailplanes. Journal of Aircraft, 2003, 40(6): 1099-1106.
8Ishimitsu K K. Design and analysis of winglets for military aircraft. AFFDL-TR 76-6, 1976.
9Ursache N M, Melin T, Isikveren A T, et al. Morphing winglets for aircraft multi-phase improvement. AIAA- 2007 7813, 2007.
10Bourdin P, Gatto A, Friswell M I. Aircraft control via variable cant-angle winglets. Journal of Aircraft, 2008, 45 (2) : 414-423.