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Meeting	ACGS Committee Meeting 115 - Portland, OR - March 2015
Agenda Location	7 SUBCOMMITTEE A – AERONAUTIC AND SURFACE VEHICLES 7.3 Flight Testing the 787-9: Opportunities and Challenges in Certifying a Simple Derivate
Title	Flight Testing the 787-9: Opportunities and Challenges in Certifying a Simple Derivate
Presenter	Nikos Mills
Affiliation	Boeing
Available Downloads*	presentation
	Downloads are available to members who are logged in and either Active* or attended this meeting.
Abstract	Abstract Flight Testing the 787-9: Opportunities and Challenges in Certifying a Derivative Presented by Nikos Mills – Boeing Commercial Airplanes The 787-9 is a 20 ft stretch version of the 787-8 with increased payload/range capability and improved economics. As a relatively simple derivative of the parent airplane, the 787-9 started from a well-understood baseline aircraft. This approach provided many advantages during the test program including a shortened flight test schedule and the ability to accurately predict important performance parameters. However, even a ‘simple’ derivative comes with flight testing challenges. The main focus of the presentation is a discussion of the interaction between body structural modal characteristics and their effect on handling qualities. Specific examples from the 787-9 test program are presented. The presentation concludes with a discussion of testing safely at the edges of the flight test envelope in the presence of control laws. Bio Nikos Mills joined Boeing with a BS and MS in Aerospace Engineering from The University of Kansas and has been a member of the Boeing Commercial Stability and Control team for 23 years. He has participated in the design, flight testing, and certification of a wide range of airplanes starting from the 737 Next Generation family up to the recently certified 787-8 and 787-9. He is currently assigned to the 777-X program. Outside of work, Nikos enjoys almost any outdoor activity and has a garage full of bicycles that he tries to ride as much as his family will allow.