Design and Piloted Simulation of a Robust Integrated Flight and Propulsion Controller

Abstract
A robust integrated è ight and propulsion controller is designed for an experimental short takeoff and vertical landing aircraftconé guration,using themethod of 1 loop-shaping. Theaircraftmodelused in thestudy isbased on the Harrier airframe with the Pegasus engine replaced by a thermodynamic simulation of a Rolls-Royce Spey power plant, to allow the incorporation of advanced engine control concepts. The controller follows a two-inceptor strategy to command è ight-path angle rate and velocity along the è ight path, whilesimultaneously keeping several airframeandenginevariableswithinspecié edsafetylimits.Thecentralizedintegratedè ightandpropulsioncontrol system is evaluated in piloted simulation trials. Results indicate that level 1 or 2 è ying qualities are achieved over the low-speed powered lift region of the è ight envelope.