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Analysis of aircraft control strategies for microburst encounterAnalyses have indicated that improved control strategies could reduce the threat posed by the presence of microburst-type wind shear during aircraft takeoffs and landings. The attenuation of flight path response to microburst inputs by feedback control to elevators and throttle was studied for the cases of a jet transport and a general aviation aircraft, using longitudinal equations of motion, root locus analysis, Bode plots of altitude response to wind inputs, and nonlinear numerical simulation. Energy management relative to the airmass, a pitch-up response to the decreasing airspeed, increased phugoid mode damping, and decreased phugoid natural frequency, are found to improve microburst penetration aircraft behavior. Aircraft stall, and throttle saturation, are limiting factors in an aircraft's ability to maintain a given flight path during a microburst encounter.
Document ID
19840035180
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stengel, R. F.
(Princeton University Princeton, NJ, United States)
Psiaki, M. L.
(Princeton Univ. NJ, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Subject Category
Aircraft Stability And Control
Report/Patent Number
AIAA PAPER 84-0238
Accession Number
84A17967
Funding Number(s)
CONTRACT_GRANT: NGL-31-001-252
Distribution Limits
Public
Copyright
Other

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