On controllability limit of manual control for an unstable second-order system without static stability

Abstract

This report presents the results of a study of a pilot's ability to control an unstable second-order system without static stability. The experimental test to obtain the limit of pilot's capability in controlling the element by stick control are conducted. The experimental results thus obtained is used to suggest the theoretical controllability limit of the pilot. The behavor of the pilot is analyzed by use of bang-bang control system theory. The theoretical results are compared with experimental results, and then shows good insight into the controllability limit of human pilot.