Match Characteristics of Design Parameters of Longitudinal Flying Qualities and Pitch Agility

Abstract

Modern high-performance fighter design should meet the requirements of both flying qualities and flight agility. In this paper, the influence of flying qualities design parameters on flight agility was analyzed and the match laws of Level 1 flying qualities and satisfied flight agility was summarized. The longitudinal match law indicates that Control Anticipation Parameter(CAP) is the main effect factor of initial pitch acceleration and Equivalent Frequency(ωsp) and Damping Ratio(ξsp) affect the stability of the aircraft after loading. With the descending of Control Anticipation Parameter(CAP), the range formed by ωsp and ξsp shrinks and finally comes to a point.