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Pilot-Induced Oscillations and Human Dynamic BehaviorThis is an in-depth survey and study of pilot-induced oscillations (PIO's) as interactions between human pilot and vehicle dynamics; it includes a broad and comprehensive theory of PIO's. A historical perspective provides examples of the diversity of PIO's in terms of control axes and oscillation frequencies. The constituents involved in PIO phenomena, including effective aircraft dynamics, human pilot dynamic behavior patterns, and triggering precursor events, are examined in detail as the structural elements interacting to produce severe pilot-induced oscillations. The great diversity of human pilot response patterns, excessive lags and/or inappropriate gain in effective aircraft dynamics, and transitions in either the human or effective aircraft dynamics are among the key sources implicated as factors in severe PIO's. The great variety of interactions which may result in severe PIO's is illustrated by examples drawn from famous PIO's. These are generalized under a pilot-behavior-theory-based set of categories proposed as a classification scheme pertinent to a theory of PIO's. Finally, a series of interim prescriptions to avoid PIO is provided.
Document ID
Document Type
Contractor Report (CR)
McRuer, Duane T. (Systems Technology, Inc. Hawthorne, CA United States)
Date Acquired
August 17, 2013
Publication Date
July 1, 1995
Subject Category
Aircraft Stability and Control
Report/Patent Number
NAS 1.26:4683
Funding Number(s)
PROJECT: RTOP 505-64-30
Distribution Limits
Work of the US Gov. Public Use Permitted.

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NameType 19960020960.pdf STI