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A Handling Qualities Theory for Precise Flight Path Control

Report Number: AFFDL TR 65-198
Author: Bihrle. William, Jr.
Laboratory: Aif Force Flight Dynamics Laboratory
Date of Publication: 1966-06
Pages: 37
Contract: AF 33(615)-3199
Project: 8219
Task: 821905
AD Number: AD0801498

This paper discusses the overall subject of precise flight path control. A unifying precision control theory is presented and a control anticipation parameter is developed which relates the quantities that are involved in the man-machine precision control mechanism. A critical value for this parameter is suggested, based on experimental results, and is discussed in relation to pilot adaptability as reflected under the topics of control technique (control pumping), control function and control task. Also, an associated criterion in terms of aircraft characteristics is developed and techniques for improving the precision controllability of inherently deficient airframes through stick force and automatic flight control systems are discussed. Finally, experimental and analytical investigations are recommended which are deemed necessary for specifying the longitudinal handling qualities of manned vehicles.

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