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Collectively variable incidence wingtips for lift control and reduced gust sensitivity

Published online by Cambridge University Press:  04 July 2016

R.H. Barnard
R.H. Barnard*
Affiliation:
Division of Mechanical and Aeronautical Engineering, University of Hertfordshire
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Abstract

This paper describes an investigation of the aerodynamic characteristics of collectively variable incidence wing tips at low speeds. Theoretical considerations supported by experimental measurements suggest that the use of articulated tips which can be rotated to a high incidence for low speed flight will decrease sensitivity to gusts. Furthermore, windtunnel measurements demonstrate that the use of very high tip incidences can produce an increment in maximum overall lift coefficient for some wing configurations. Another feature investigated is the possibility of utilising the lift increment for the purposes of direct lift control. The use of a radio controlled model to test the practical viability of the concept is described.

Type
Research Article
Information
The Aeronautical Journal , Volume 99 , Issue 981 , January 1995 , pp. 29 - 35
Copyright
Copyright © Royal Aeronautical Society 1995 

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