NDLI: Advanced supersonic transport fixed-base simulator evaluations at landing approach

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Advanced supersonic transport fixed-base simulator evaluations at landing approach

Content Provider	NASA Technical Reports Server (NTRS)
Author	Feather, J. B.
Copyright Year	1980
Description	Equations of motion simulating the landing approach case for the supersonic cruise vehicle were programmed and exercised using a fixed base simulation facility. Unaugmented and augmented system comparisons using this facility are provided. Refinements necessary for system performance improvement are made. The unaugmented longitudinal responses to elevator commands are slow and sluggish, requiring augmentation to increase the speed of the response. In the lateral directional case, the Dutch roll is highly underdamped and requires an augmentation system to increase this damping and provide satisfactory flying qualities. The status of this fixed base study is that the longitudinal equations, updated with recent wind tunnel data, were evaluated on the simulator and the system found to be satisfactory. The lateral axis equations are linearized and are not yet updated to large excursion capability; consequently, only limited, preliminary findings on this system are available. The basic results so far indicate augmentation systems are required to provide a satisfactory longitudinal system, and that additional study and evaluation of the lateral directional case are necessary before a more complete assessment can be made.
File Size	2980572
Page Count	15
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19810009469
Archival Resource Key	ark:/13960/t2b902t23
Language	English
Publisher Date	1980-03-01
Access Restriction	Open
Subject Keyword	Research And Support Facilities (air) Lateral Stability Supersonic Transports Aircraft Landing Landing Simulation Directional Control Equations of Motion Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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