STOL and Maneuver Technology

This paper describes the Short Takeoff and Landing (STOL) and Maneuver Technology Demonstrator. It relates government requirements for performance and for specific technology to be developed. The two-dimensional, thrust vectoring and reversing engine exhaust nozzle and its integration with the control system are described. The use of modern control system design techniques to meet evolving criteria for aircraft handling during the STOL task is discussed. Use of on-board sensors to substitute for ground-based approach aids used in weather is outlined. Expected performance improvements in takeoff and landing and in maneuvering flight are related to the technology being demonstrated. The paper closes with a discussion of the potential tactical and strategic impact of the technology.