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Meeting	ACGS Committee Meeting 127 - San Diego, CA - November 2021
Agenda Location	5 SUBCOMMITTEE A – AERONAUTIC AND SURFACE VEHICLES 5.4 X-56 Lesson Learned in Modeling and Flight
Title	X-56 Lesson Learned in Modeling and Flight
Presenter	Chris Miller
Affiliation	NASA Armstrong Flight Research Center
Available Downloads*	presentation
	Downloads are available to members who are logged in and either Active* or attended this meeting.
Abstract	The objective of the X-56 project was to determine if the use of active feedback control could be used to stabilize open loop flutter and provide acceptable margin and robustness to uncertainty. Additionally, a goal of the project was to collect high quality fight data to be used for modeling technique development and validation. However, the project encountered a number of significant challenges along the way and developed some significant lessons learned that are applicable to high risk flight testing. This presentation explores those challenges, and elaborates on the lessons learned that allowed the team to persevere and eventually succeed in the accomplishing the original project objectives.