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Meeting	ACGS Committee Meeting 96 - Hilton Head - October 2005
Agenda Location	8 SUBCOMMITTEE A - AERONAUTIC AND SURFACE VEHICLES 8.3 AAW Flight Test - Control Design with CONDUIT
Title	AAW Flight Test - Control Design with CONDUIT
Presenter	Ryan Dibley
Affiliation	NASA DFRC
Available Downloads*	presentation
	Downloads are available to members who are logged in and either Active* or attended this meeting.
Abstract	The Active Aeroelastic Wing (AAW) program was a joint Air Force Research Labs / NASA project created to investigate the characteristics of an aeroelastic wing and the technique of using wing twist for roll control. An F/A-18 aircraft was used, modified to have reduced wing torsional stiffness and a custom research flight control computer. The control system was optimized to maximize roll rate, while simultaneously maintaining loads, stability margins, and handling qualities. NASA Dryden used the software design tool CONDUIT in the development of their control laws, which employs a multi-objective function optimization to tune selected control system design parameters. Modifications were made to the CONDUIT specifications to incorporate the Dryden nonlinear F-18 simulation for time history analysis. Flight testing began in December 2004 and was concluded in March 2005. The presentation describes the design process, including how the control law requirements were incorporated into specifications to constrain the CONDUIT optimization. Predicted performance was compared to actual results from flight.