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특허 상세정보

Apparatus and method for twisting a wing to increase lift on aircraft and other vehicles

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-003/14   
미국특허분류(USC) 244/203; 244/219
출원번호 US-0805226 (2007-05-21)
등록번호 US7883060 (2011-01-26)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 5  인용 특허 : 23

A method and apparatus for varying the twist of a wing such that induced drag is minimized or reduced during cruise and lift is maximized or increased at least during takeoff and landings. In addition, variations in the twist may produce yawing and rolling moments. The twist amount is varied pursuant to the operating conditions, including those parameters used to determine the lift coefficient. The twist for reducing induced drag and/or improving lift may be employed by geometric or aerodynamic twist, including full span control surfaces used to provide ...


What is claimed is: 1. A method of improving lift generated by a wing of a vehicle, said method comprising the steps of specifying a target airfoil section lift coefficient distribution, and applying a twist distribution to the wing and thereby maintain an airfoil section lift coefficient distribution across at least a portion of the wing that either approximates or equals the target airfoil section lift coefficient distribution;further comprising the step of determining the twist distribution based over an extended segment of the wing, at least in part,...

이 특허에 인용된 특허 (23)

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  6. Phillips, Warren F.. Apparatus and method for reducing induced drag on aircraft and other vehicles. USP2005116970773.
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  12. Schwetzler, Detlev; May, Peter. Flap arrangement for varying the aerodynamic lift generated by an aerodynamic element of an aircraft. USP2003116641089.
  13. Sankrithi Mithra M. K. V. (417 Bellevue Way SE. #400 Bellevue WA 98004). Flexible flap for an airfoil. USP1984074460138.
  14. Hendrickson Ronald H. (Smithtown NY). High lift out-of-contour flap for aircraft wing. USP1996095551651.
  15. Wilkerson, Thomas D.; Sanders, Jason A.; Andrus, Ionio Q.. Kinematic analysis of conically scanned environmental properties. USP2003036535158.
  16. Hueberger Lawrence K. (Reno NV). Kreuger flap actuating mechanism for delta wing, canard type aircraft. USP1984054445655.
  17. Rao Dhanvada M. (Hampton VA). Leading edge flap system for aircraft control augmentation. USP1984124485992.
  18. Paez Carlos A.. Mechanism for streamwise fowler deployment of the wing trailing or leading edge. USP1998115836550.
  19. Volk Steve J. (7900 Tatum Waterway Dr. Miami Beach FL 33141-1936). Propeller breeze enhancing blades for conventional ceiling fans. USP1990014892460.
  20. Nozaki Yoshio (No. 89 ; Saiwai-cho Inazawa-shi ; Aichi-ken JPX). STOL aircraft. USP1992125167383.
  21. Pohl Ulrich (Bremen DEX) Renken Juergen (Freyersen DEX). Segmentized flap system. USP1990014892274.
  22. Volk John Alan. Selectively rotatable and torsionally flexible aerodynamic control apparatus. USP2000076089503.
  23. Palmer Harry W. (P.O. Box 821 Denmark ME 04022). Torsional twist airfoil control means. USP1997105681014.