Journal ArticleDOI
In-Flight Evaluation of Control System Pure Time Delays
TLDR
In this article, an in-flight investigation of the effect of pure time delays on low LID space-shuttle-type landing tasks was undertaken, and the results indicate that the sensitivity of the pilot ratings to changes in pure time delay in pitch is strongly affected by the task and only slightly affected by changes in control system augmentation mode.Abstract:
An in-flight investigation of the effect of pure time delays on low LID space-shuttle-type landing tasks was undertaken. The results indicate that the sensitivity of the pilot ratings to changes in pure time delay in pitch is strongly affected by the task and only slightly affected by changes in control system augmentation mode. Low LID spot landings from a lateral offset were twice as sensitive to pure time delay as normal low LID landings. For comparison purposes, formation flying was also investigated and was found to be less sensitive to time delay than the landing tasks.read more
Citations
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Pilot-Induced Oscillations and Human Dynamic Behavior
TL;DR: In this paper, an in-depth survey and study of pilot-induced oscillations (PIO's) as interactions between human pilot and vehicle dynamics is presented, including a broad and comprehensive theory of PIO's.
Proceedings ArticleDOI
Recommended Practices for Exposing Pilot-Induced Oscillations or Tendencies in the Development Process
David G. Mitchell,David H. Klyde +1 more
TL;DR: In this paper, the status of relevant pilot-induced oscillations (PIO) criteria, on-board detection and alleviation schemes are described, and flight test methods are reviewed, and recommended practices to expose PIO tendencies, if they exist, so that the catastrophic events can be minimized or eliminated.
Journal ArticleDOI
Space Shuttle longitudinal landing flying qualities
TL;DR: The Space Shuttle program took on the challenge of providing a manual landing capability for an operational vehicle returning from orbit, and some complex challenges were encountered in developing the longitudinal flying qualities required to land the Orbiter manually in an operational environment as discussed by the authors.
Journal ArticleDOI
Manual control with delays: a bibliography
TL;DR: The bibliography contains references to papers on human control of closed-loop systems with delayed feedback and on software compensation schemes for delays, which are relevant to developments where human beings will operate either in artificial, computergenerated worlds or remotely through sensors.
Journal ArticleDOI
Analysis of Aircraft Attitude Control Systems Prone to Pilot-Induced Oscillations
TL;DR: An optimal control model of the human pilot is applied to the study of aircraft attitude control systems and insight is offered into the manner in which higher-order vehicle dynamics effect pilot equalization requirements and closed-loop pilot/vehicle performance.
References
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The use of pilot rating in the evaluation of aircraft handling qualities
TL;DR: In this article, the authors reviewed the use of pilot rating scales and their use in assessing aircraft handling qualities and proposed a new definition of handling qualities, emphasizing the importance of factors that influence the selection of a rating other than stability and control characteristics.
ReportDOI
An In-Flight Investigation to Develop Control System Design Criteria for Fighter Airplanes. Volume 1
T. P. Neal,Rogers E. Smith +1 more
TL;DR: The pilot rating and comment data indicate that the dynamic modes of the flight control system can cause serious flying qualities problems, even if the short-period mode is well behaved.
Effects of Control System Dynamics on Fighter Approach and Landing Longitudinal Flying Qualities. (Volume I).
TL;DR: The results show that the present landing approach requirements in MIL-F-8785B (ASG) are not adequate; in particular, they are not applicable to aircraft with complex flight control systems.
Journal ArticleDOI
Handling qualities of aircraft with stabilty and control augmentation systems—a fundamental approach
TL;DR: The early SAS configurations were conceived as devices to enhance the natural response characteristics of the aircraft; later, CAS evolved as a way of making the desired response more independent of the basic aircraft characteristics as discussed by the authors.
Proceedings ArticleDOI
Design and test experience with a triply redundant digital fly-by-wire control system
TL;DR: A triplex digital fly-by-wire flight control system was developed and then installed in a NASA F-8C aircraft to provide fail-operative, full authority control and the implementation of computer, sensor, and actuator redundancy management.
Related Papers (5)
An In-Flight Investigation to Develop Control System Design Criteria for Fighter Airplanes. Volume 1
T. P. Neal,Rogers E. Smith +1 more