Full-Authority digital electronic controls for civil aircraft engines

Abstract

In the U.K. full-authority digital controls are now being successfully demonstrated on military aero-engines following some years of practical research into suitable configurations for this class of power plant. For the case of Civil aero-engines the appropriate configuration of systems that will enter service from the mid-1980's has been the subject of much debate between engine/airframe manufacturers and the principal accessory suppliers. This paper discusses the major features that will be embodied in these new systems, particular reference being made to: System tasks and performance requirements; configuration; life cycle costing; electronics design and system interfacing; and reliability and integrity.