Powerplant Control System Tuning Activities

Abstract

T-625 helicopter is a light utility multi role helicopter that is designed by Turkish Aerospace Helicopter Group. It is equipped with twin CTS800-4AT turboshaft engines developed by the Light Helicopter Turbine Engine Company (LHTEC). Engines are controlled by an advanced, redundant dual-channel full authority digital engine control (FADEC) system. This paper presents aspects of the load anticipation and dynamic response characterization of engine control system in powerplant integration process of T-625 helicopter, together with the results of engine control tuning flight test campaign which are performed to fine-tune FADEC controller parameters during flight.