Volume II. Flying Qualities Phase, Chapter 16. Chapter 16: Reprint of NASA TN D-5153, The Use of Pilot Rating in the Evaluation of Aircraft Handling Qualities

Volume II. Flying Qualities Phase, Chapter 16. Chapter 16: Reprint of NASA TN D-5153, The Use of Pilot Rating in the Evaluation of Aircraft Handling Qualities PDF

Author:

Publisher:

Published: 1969

Total Pages: 54

ISBN-13:

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Pilot rating scales and their use in assessing aircraft handling qualities are reviewed historically, and objections that have been raised to limitations of earlier scales are considered in the development of a revised scale. Terminology used in the evaluation of handling qualities is reviewed and new definitions are proposed to improve communication and international understanding. O f particular significance is the new definition of handling qualities, which emphasizes the importance of factors that influence the selection of a rating other than stability and control characteristics. The experimental use of pilot rating is discussed in detail, with special attention devoted to (l) clarifying the difference between mission and task, (2) identifying what the rating applies to, (3) considering the pilot's assessment criteria, and (4) defining the simulation situation. The important elements of the report are then summarized in a suggested Briefing Guide, designed for guidance in planning and executing handling qualities experiments.

Evaluation of Numerator Lead Effects on Aircraft Handling Qualities

Evaluation of Numerator Lead Effects on Aircraft Handling Qualities PDF

Author: David W. Eidsaune

Publisher:

Published: 1986

Total Pages: 137

ISBN-13:

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Results of a combined analytical/flight test evaluation to investigate the effects of short period zero (T theta 2) on aircraft handling qualities are presented. Two optimal pilot models were used for the analytical portion. 1/T theta 2 was varied from 0.1 to 10 for each 4 different short period configurations. Flight testing was accomplished in the variable stability NT-33A aircraft, over a range of 1/T theta 2 values at one short period configuration. A pitch tracking task was used to generate RMS pitch errors for both the analytical and flight test phase. Cooper-Harper ratings were also collected during the flight test. Analytical results showed similar trends for all short period configurations, with pilot tracking task performance degrading at low 1/T theta 2 values. The bandwidth criterion was of limited use in predicting handling qualities levels based on T theta 2 variations alone. DC gain variations produced minimal differences in pilot performance. Overall evaluation results indicate that T theta 2 placement is an important factor in short period handling qualities and should be included in future revisions to MIL-F-8785C.

Cooper-Harper Experience Report for Spacecraft Handling Qualities Applications

Cooper-Harper Experience Report for Spacecraft Handling Qualities Applications PDF

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-05-22

Total Pages: 70

ISBN-13: 9781719491280

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A synopsis of experience from the fixed-wing and rotary-wing aircraft communities in handling qualities development and the use of the Cooper-Harper pilot rating scale is presented as background for spacecraft handling qualities research, development, test, and evaluation (RDT&E). In addition, handling qualities experiences and lessons-learned from previous United States (US) spacecraft developments are reviewed. This report is intended to provide a central location for references, best practices, and lessons-learned to guide current and future spacecraft handling qualities RDT&E. Bailey, Randall E. and Jackson, E. Bruce and Bilimoria, Karl D. and Mueller, Eric R. and Frost, Chad R. and Alderete, Thomas S. Ames Research Center; Langley Research Center COOPER-HARPER RATINGS; SPACECRAFT DESIGN; TECHNOLOGY UTILIZATION; PILOT RATINGS; LESSONS LEARNED; CONTROLLABILITY; EVALUATION; SYSTEM EFFECTIVENESS; ROTARY WING AIRCRAFT; FIXED WINGS