A study on the control law of Automatic Rudder Trim System for turbo prop aircraft

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Journal of the Korea Institute of Military Science and Technology 1999;2(1):121-131.

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터보 프롭 항공기 자동러더트림장치 제어법칙에 관한 연구

박완기, 이광현, 김병수

원문참조

Abstract

Automatic Rudder Trim System(ARTS) is a device to reduce the pilot's work load for rudder trimming greatly required in varying abruptly aircraft's engine power. This paper represents a technical analysis and a design of control law of the ARTS. The control law of the ARTS is designed based on the analysis of aircraft's characteristics, system's requirements, and limitations. The control law is comprised of open loop control using the rudder trim map for a specific aircraft and closed loop control to compensate the error of the open loop control system. flight test results show that the ARTS can reduce pilot's work load for rudder trimming dramatically and can compensate the aircraft's transient yaw motion.