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Meeting	ACGS Committee Meeting 96 - Hilton Head - October 2005
Agenda Location	6 SUBCOMMITTEE D - DYNAMICS, COMPUTATIONS 6.2 Overview of the Control Laws, Carefree Maneuvering Provisions, and Flight Test Status of the BA609 Commercial Tiltrotor
Title	Overview of the Control Laws, Carefree Maneuvering Provisions, and Flight Test Status of the BA609 Commercial Tiltrotor
Presenter	David King and Bob Fortenbaugh
Affiliation	Bell Helicopter
Available Downloads*	presentation video
	Downloads are available to members who are logged in and either Active* or attended this meeting.
Abstract	The BA609 is the first tiltrotor slated for FAA certification. This presentation provides a status of the aircraft development with accompanying videos of the aircraft in flight. The presentation focuses on the aircraft handling qualities including the following: 1. The handling qualities design philosophy. 2. A description of the pilot vehicle interface provided by the flight deck arrangement of controls and displays. 3. A description of the simple mode structure of the control laws. 4. An overview of the response types for the primary axes implemented in the control laws. 5. Descriptions of the nacelle and engine/RPM control laws. 6. A description of the carefree maneuvering provisions implemented in the control laws and cockpit controls and displays to reduce pilot workload. These include automated flapping limiting, automated rotor load alleviation, tactile cueing of power limits, automated conversion protection, and cueing of the airspeed envelope. 7. A summary of initial pilot impressions of flying the aircraft. In general the pilots are highly complimentary and pleasantly surprised at the maturity of the handling qualities at the current early stage of development.