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Flying aeroplanes in buffet

Published online by Cambridge University Press:  04 July 2016

Extract

There can be no question that manoeuvrability is one of the principal requirements for a combat aircraft, and achieving the necessary amount of usable lift is never an easy design task. The lift generated by the wings ceases to be usable when it is accompanied by unacceptable levels of buffet or degraded handling or loss of control. Practically all combat aircraft have to penetrate some way into this region where things begin to go wrong, and the problem we are concerned with in the Royal Aircraft Establishment is to see how certain we can be, before the first flight of a new design, that the so-called buffet boundary will allow the specified manoeuvrability to be achieved. One line of attack is to take an existing aircraft, record and analyse its behaviour in these limiting conditions, and see whether design and test methods are good enough to predict what we find in flight.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1977 

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References

1. Burns, W. R. Aerodynamic design and flight test of US Navy aircraft at high angles of attack. Paper 25 of AGARD CP 102. 1972.Google Scholar
2. Buckner, J. K. and Webb, J. B. Selected results from the YF-16 wind-tunnel test program. AIAA 74-619. 1974.Google Scholar
3. Shaw, D. E. Pre-stall behaviour of combat aircraft. AGARD lecture series 74. 1975.Google Scholar
4. Bore, C. L. Post stall aerodynamics of the Harrier Gr Mk I. Paper 18 of AGARD CP 102. 1972.Google Scholar
5. Butler, G. F. and Spavins, G. R. Preliminary evalu ation of a technique for predicting buffet loads in flight from wind-tunnel measurements on models of conven tional construction. Paper 23 of AGARD CP 204. 1976.Google Scholar
6. Jones, J. G. Modelling of systems with a high level of internal fluctuations. Paper 1 of AGARD CP 172. 1974.Google Scholar
7. Ross, A. Jean and Foster, G. W. Fortran programs for the determination of aerodynamic derivatives from transient longitudinal or lateral responses of aircraft. RAE Technical Report 75090. 1975.Google Scholar
8. Titiriga, A. Jr., Ackerman, J. S. and Skow, A. M. Design technology for departure resistance of fighter aircraft. Paper 5 of AGARD CP 199. 1975.Google Scholar
9. Ross, A. Jean, Foster, G. W. and Turvey, T. An investigation of Dutch roll and wing rock oscillations of a Gnat Trainer aircraft: flight tests and linear analy sis. RAE Technical Report to be published.Google Scholar
10. O'leary, C. Wind-tunnel measurements of lateral aerodynamic derivatives using a new oscillatory rig with results and comparisons for a Gnat aircraft. RAE Technical Report to be published.Google Scholar