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Aircraft longitudinal motion at high incidence

Published online by Cambridge University Press:  04 July 2016

A. W. Babister
A. W. Babister*
Affiliation:
Department of Aeronautics and Fluid Mechanics, University of Glasgow
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Extract

In the analysis of aircraft flight dynamics problems at high incidence, non-linear aerodynamic effects are of considerable importance. The aerodynamic phenomena are generally extremely complicated and the non-linearities may be difficult to predict quantitatively. In this note we confine our attention to longitudinal symmetric motion at constant speed and height. Our aim is (i) to enable the pilot to know when he is in a potentially dangerous manoeuvre (which could lead, for example, to a super-stall) and (ii) to determine simple control laws for an autopilot which would prevent such a super-stall occurring.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 83 , Issue 822 , June 1979 , pp. 230 - 232
Copyright
Copyright © Royal Aeronautical Society 1979 

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References

1. Thomas, H. H. B. M. and Collingbourne, J. Longitudinal motions of aircraft involving high angles of attack. R&M 3753, 1974.Google Scholar
2. Babister, A. W. Non-linear differential equations having quadratic stiffness terms. Univ Glasgow Dept Aeronautics and Fluid Mechanics Rpt 7301, 1973.Google Scholar
3. Stengel, R. F. and Berry, P. W. Stability and control of maneuvring high performance aircraft. NASA CR 2788, 1977.Google Scholar