Integrated Flight and Propulsion Operating Modes for Advanced Fighter Engines

This paper presents the results of preliminary studies of advanced propulsion system requirements and capabilities for the next generation of fighter aircraft. It represents an examination of current and advanced concepts of internal variable engine geometry and advanced exhaust system concepts for use in expanding the role of the propulsion system in the flight process. Special engine operating modes are defined and their potential capabilities are described. In-flight thrust vectoring and reversing concepts are described and their use in providing propulsive pitch and yaw forces for flight control assist are discussed. Potential control concepts and requirements for implementing the advanced engine operating modes are also described.