Author : Robert W. Kempel
Release : 1971
Genre : Aerodynamics
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Analysis of a Coupled Roll-spiral-mode, Pilot-induced Oscillation Experienced with the M2-F2 Lifting Body by : Robert W. Kempel

Download or read book Analysis of a Coupled Roll-spiral-mode, Pilot-induced Oscillation Experienced with the M2-F2 Lifting Body written by Robert W. Kempel. This book was released on 1971. Available in PDF, EPUB and Kindle. Book excerpt: 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.