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Analysis of a coupled roll-spiral-mode, pilot-induced oscillation experienced with the M2-F2 lifting body

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@ University of Illinois

Kempel, Robert W

Description

"September 1971."Cover title.Includes bibliographical references (p. 50-51).During the 16 glide flights of the M2 -F2 lifting body vehicle, severe lateral pilot-induced oscillations occurred on three occasions in the low - angle of -attack, final-approach, preflare situation. These oscillations were analyzed qualitatively to determine the type and similarity and by a systems analysis to determine the root cause. The analysis was complemented by a piloted simulator study, which verified the results. The systems analysis revealed the presence of a coupled roll-spiral mode which caused the pilots to generate a closed-loop lateral instability in the low-angle -of -attack, preflare flight region. A systems analysis, a piloted simulator study, and flight data showed that the addition of a fixed center fin lessened the pilot-induced-oscillation tendencies in the critical flight region.
Type:
Text
Format:
Language Material Electronic Resource
Contributors:
Flight Research Center (U.S.)United States. National Aeronautics and Space Administration
Rights:
Public domain. Learn more at http://www.hathitrust.org/access_use
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Record Contributed By

University of Illinois

Record Harvested From

HathiTrust

Keywords

  1. Aerodynamics
  2. Oscillations

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