1985-10-01

Swept Wing-Tip Shapes for Low-Speed Airplanes 851770

Preliminary results are presented of a study conducted to analyze the effects of several planform modifications on the aerodynamic characteristics of a high-aspect-ratio, natural laminar flow (NLF) wing. The study addresses the potential aerodynamic improvements available at both cruise and high angles of attack by use of swept wing-tip shapes. The swept wing tip appears to offer a viable addition to the lift of wing-tip designs which provide improvements in aerodynamic efficiency, with the added safety benefit of providing high angle-of-attack departure resistance.

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