Instability of the pilot/airframe combination has been a problem from the beginning of manned flight. The rapid advances made in aviation following the Second World War greatly increased the incidence of PIO problems and led to a large amount of research and development work aimed at understanding and mitigating these difficulties. Criteria and requirements were developed which could be used in design to obtain satisfactory PIO qualities. Nevertheless, in spite of all this work, and even with the great flexibility in modern control technologies available to the designer, PIO problems still often occur with new aircraft; in fact it is the power and responsiveness of modern control systems which makes them susceptible to various 'non-linear' effects such as time delays, rate limits, actuator saturation, etc., leading to unexpected PIO difficulties. With current experience, it is clear that a universal solution of the PIO problem still evades the engineering community. The cost of these problems in programme delay and financial terms is significant. The gathering together of specialists to discuss this problem, from their various points of view, has led to positive gains in the state of knowledge regarding PIOs; it has provided a significant step toward their elimination and contributed to the avoidance of PIO associated programme costs and penalties. This paper provides an overview of the results from the Workshop. Fuller details are to be published by AGARD in the proceedings of the Conference and Workshop in the near future and in a separate Advisory Report.
Pilot Induced Oscillation: A Report on the AGARD Workshop on PIO
1995
10 pages
Report
No indication
English
Pilot-Induced Oscillation - A Report on the AGARD Workshop on PIO
British Library Conference Proceedings | 1995
|Summary of an AGARD Workshop on Pilot Induced Oscillations
British Library Conference Proceedings | 1994
|AGARD Handbook (Including AGARD By-Laws)
NTIS | 1971
NTIS | 1980