Accession Number : AD0282879

Title :   THEORETICAL AND EXPERIMENTAL INVESTIGATION OF SOME NEW LONGITUDINAL HANDLING QUALITIES PARAMETERS

Corporate Author : SYSTEMS TECHNOLOGY INC INGLEWOOD CALIF

Personal Author(s) : JEX,HENRY R. ; CROMWELL,CHARLES H. III.

Report Date : JUN 1962

Pagination or Media Count : 1

Abstract : The systems-analysis theory of handling qualities (which describes the pilot's adaptive behavior in closed-loop operation by servo techniques, and relates his opinion-ratings to his adapted characteristics and the system performance) is used to reveal some important parameters associated with the numerator terms in the airframe longitudinal transfer function. The predictions are verified by five experienced test pilots operating in a fixed-base aircraft simulator. Four possible numerator effects on handling qualities are analyzed theoretically: short-period lead effect on pitch attitude tracking, static-to-short-period gain effects on attitude tracking, short-period lead effects on the control of short-period divergence, and numerator frequency and damping effects on altitude tracking. The results are correlated with other test work, and the implications of these results on future handling qualities research and specifications are discussed. (Author)

Descriptors :   *CONTROL SYSTEMS, ADAPTIVE CONTROL SYSTEMS, AIRCRAFT, AIRFRAMES, DYNAMICS, FLIGHT SIMULATORS, HANDLING, HUMAN FACTORS ENGINEERING, MATHEMATICAL ANALYSIS, PITCH (MATERIAL), PITCH (MOTION), TESTS, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE