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A Note on the Problem of Aileron Reversal at Transonic Speeds

Published online by Cambridge University Press:  28 July 2016

B. A. Hunn
B. A. Hunn*
Affiliation:
Hawker Aircraft Ltd.
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Extract

The problem of aileron effectiveness when the elastic properties of the wing structure are taken into account has already been adequately covered in the subsonic regime by A. R. Collar and E. G. Broadbent. The method used depends upon strip theory which pre-supposes a knowledge of the relevant aerodynamic derivatives. A unified method has been considered by the present author which employs either the semi-empirical theory of D. Küchemann or the lifting surface theory of H. Multhopp in such a manner that the effective values of the relevant derivatives are found, together with the rolling efficiency.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 57 , Issue 508 , April 1953 , pp. 237 - 240
Copyright
Copyright © Royal Aeronautical Society 1953

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References

1. Collar, A. R. and Broadbent, E. G. (1945). The Rolling Power of an Elastic Wing. Unpublished M.O.S. Report.Google Scholar
2. Hunn, B. A. (1952). A Method of Estimating the Loading on an Elastic Airframe. Journal of the Royal Aeronautical Society, April 1952.CrossRefGoogle Scholar
3. Küchemann, D. (1950). A Simple Method for Calculating the Span and Chordwise Loadings on Swept Wings. Unpublished M.O.S. Report.Google Scholar
4. Multhopp, H. (1950). Methods for Calculating the Lift Distribution of Wings. Unpublished M.O.S. Report.Google Scholar
5. Lance, G. N. The Rolling Power of a Swept Wing in Supersonic Flight (to be published).Google Scholar
6. Lawrence, T. (1951). Control Effectiveness Tests at Transonic Speeds on an E.C.1250 Section with 0·25 Chord Concave Control. Unpublished M.O.S. Report.Google Scholar
7. Broadbent, E. G. (1950). The Rolling Power of an Elastic Swept Wing. Unpublished M.O.S. Report.Google Scholar
8. Mangler, K. W. (1951). Calculation of the Pressure Distribution over a Wing at Sonic Speeds. Unpublished M.O.S. Report.Google Scholar