Accession Number : AD0661945

Title :   DETERMINATION OF SUITABLE AIRCRAFT RESPONSE AS PRODUCED BY AUTOMATIC CONTROL,

Corporate Author : ADVISORY GROUP FOR AERONAUTICAL RESEARCH AND DEVELOPMENT PARIS (FRANCE)

Personal Author(s) : Mewes,E.

Report Date : APR 1961

Pagination or Media Count : 31

Abstract : The effects of the adjustment of control mechanisms (coupling factor variations of certain autopilots) on the characteristics of the motion of an aircraft, omitting flexibility and compressibility effects, were investigated. The investigations are based on the simple equations of motion of an aircraft. In addition, variations of the motion due to applying more complex equations were investigated. The motions were calculated as responses to a unit step impulse of a yawing moment (due to variation in thrust of a side engine or to the occurrence of a crosswind field which decreases a little later, as, e.g., in the case of a horizontal side gust). A distinction is made between suitable and less suitable motions of the aircraft. The settings of the autopilot which have to be provided to obtain suitable motion are determined. (Author)

Descriptors :   (*AIRCRAFT, MOTION), (*FLIGHT CONTROL SYSTEMS, AUTOMATIC PILOTS), PERFORMANCE(ENGINEERING), YAW, EQUATIONS OF MOTION

Subject Categories : Flight Control and Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE