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A design procedure for the handling qualities optimization of the X-29A aircraftA design technique for handling qualities improvement was developed for the X-29A aircraft. As with any new aircraft, the X-29A control law designers were presented with a relatively high degree of uncertainty in their mathematical models. The presence of uncertainties, and the high level of static instability of the X-29A caused the control law designers to stress stability and robustness over handling qualities. During flight test, the mathematical models of the vehicle were validated or corrected to match the vehicle dynamic behavior. The updated models were then used to fine tune the control system to provide fighter-like handling characteristics. A design methodology was developed which works within the existing control system architecture to provide improved handling qualities and acceptable stability with a minimum of cost in both implementation as well as software verification and validation.
Document ID
19900002437
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Bosworth, John T. (NASA Hugh L. Dryden Flight Research Facility Edwards, CA, United States)
Cox, Timothy H. (NASA Hugh L. Dryden Flight Research Facility Edwards, CA, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1989
Subject Category
Aircraft Stability And Control
Report/Patent Number
NAS 1.15:4142
NASA-TM-4142
H-1548
AIAA PAPER 89-3428
Meeting Information
Meeting: Guidance, Navigation, and Control Conference
Location: Boston, MA
Country: United States
Start Date: August 14, 1989
End Date: August 16, 1989
Accession Number
90N11753
Funding Number(s)
PROJECT: RTOP 533-02-51
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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