NDLI: Longitudinal handling qualities of the tu-144ll airplane and comparisons with other large, supersonic aircraft

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Longitudinal handling qualities of the tu-144ll airplane and comparisons with other large, supersonic aircraft

Content Provider	NASA Technical Reports Server (NTRS)
Author	Marshall, Alisa Cox, Timothy H.
Copyright Year	2000
Description	Four flights have been conducted using the Tu-144LL supersonic transport aircraft with the dedicated objective of collecting quantitative data and qualitative pilot comments. These data are compared with the following longitudinal flying qualities criteria: Neal-Smith, short-period damping, time delay, control anticipation parameter, phase delay (omega(sp)T(theta(2))), pitch bandwidth as a function of time delay, and flight path as a function of pitch bandwidth. Determining the applicability of these criteria and gaining insight into the flying qualities of a large, supersonic aircraft are attempted. Where appropriate, YF-12, XB-70, and SR-71 pilot ratings are compared with the Tu-144LL results to aid in the interpretation of the Tu-144LL data and to gain insight into the application of criteria. The data show that approach and landing requirements appear to be applicable to the precision flightpath control required for up-and-away flight of large, supersonic aircraft. The Neal-Smith, control anticipation parameter, and pitch-bandwidth criteria tend to correlate with the pilot comments better than the phase delay criterion, omega(sp)T(theta(2)). The data indicate that the detrimental flying qualities implication of decoupled pitch-attitude and flightpath responses occurring for high-speed flight may be mitigated by requiring the pilot to close the loop on flightpath or vertical speed.
File Size	2938985
File Format	PDF
Language	English
Publisher Date	2000-05-01
Access Restriction	Open
Subject Keyword	Aerodynamics Pilot Ratings Data Acquisition Transport Aircraft Sr-71 Aircraft Flight Paths Aircraft Performance Flight Characteristics Yf-12 Aircraft Tu-144 Aircraft Supersonic Aircraft Bandwidth Controllability B-70 Aircraft Supersonic Transports Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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