Nonlinear inversion flight control for a supermaneuverable aircraft

S. Antony Snell, Dale F. Enns, William L. Garrard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

38 Scopus citations


This paper describes the use of nonlinear dynamic inversion for the design of a flight control system for a super-maneuverable aircraft. First, the dynamics to be controlled were separated into fast and slow variables. The fast variables were the angular rates and the slow variables were the attitude angles. Then a nonlinear inversion controller was designed for the fast variables. This stabilized the longitudinal short-period and improved the lateral-directional responses over a wide range of angle of attack by making use of a combination of aerodynamic surfaces and thrust vectoring control, TVC. Outer loops were then closed to allow the pilot Id control the slow dynamics, the angle of attack, side-slip angle and the velocity bank angle. Nonlinear inversion was also used to design of the outer loop control laws. The dynamic inversion control laws were compared with more conventional, gain-scheduled control laws and were shown to yield much better performance.

Original languageEnglish (US)
Title of host publicationGuidance, Navigation and Control Conference, 1990
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Number of pages18
StatePublished - Jan 1 1990
EventGuidance, Navigation and Control Conference, 1990 - Portland, United States
Duration: Aug 20 1990Aug 22 1990


OtherGuidance, Navigation and Control Conference, 1990
Country/TerritoryUnited States


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