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Meeting	ACGS Committee Meeting 107 - Boulder - March 2011
Agenda Location	9 SUBCOMMITTEE A – AERONAUTIC AND SURFACE VEHICLES 9.2 F-35B Jetborne Envelope Expansion
Title	F-35B Jetborne Envelope Expansion
Presenter	Joe Krumenacker
Affiliation	NAVAIR
Available Downloads*	presentation
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Abstract	CAPT David “Dorkk” Silldorff, USN Vehicle Systems Deputy IPT Lead JSF Program Office Joseph Krumenacker JSF Vehicle Control Integration Lead NAVAIR Flight Controls Branch Abstract This presentation provides an update on F-35B STOVL envelope expansion after about 16 months of STOVL mode (lift fan engaged) flight test. An overview of the F-35B test approach is provided, with an emphasis on jetborne envelope expansion. The presentation summarizes test progress in slow landings, vertical landings and slow takeoffs, since a previous F-35B ACGCS presentation (Meeting #105), and presents a recent typical test mission. A summary of the basic STOVL control philosophy and a translational rate-command (TRC) control philosophy for hovering flight are provided. The TRC philosophy was developed using combination of simulation assessment and flight test in the QinetiQ VAAC Harrier. The presentation provides a overview of some of the successes of jetborne flight test and the challenges that have created the need for some regression flight test. The presentation concludes with a summary of future plans for the F-35B aircraft and upcoming milestones.