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Correlation of experimental and theoretical steady-state spinning motion for a current fighter airplane using rotation-balance aerodynamic data /
T.F. Langham.

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Main Author
Langham, T. F.
Related Names
United States. Air Force.
Arnold Engineering Development Center
ARO, Inc.
Language(s)
English
Published
Arnold Air Force Base, Tennessee : Arnold Engineering Development Center, Propulsion Wind Tunnel Facility, Air Force Systems Command, United States Air Force, 1978.
Subjects
Spin (Aerodynamics)
Jet planes, Military.
Summary
An analytical study has been conducted to determine the usefulness of rotation-balance aerodynamic data in calculating the steady-state spin motion of a current fighter aircraft configuration. The analysis utilizes a nonlinear six-degree-of-freedom digital computer program to generate time histories of airplane spinning motion. Three aerodynamic data models were formulated and used in the spin analysis. The first model represents the conventional use of static and forced-oscillation data; the second model uses the static and forced-oscillation data but restricts the forced-oscillation data to that component of the total angular rate that is oscillatory; and the third model incorporates rotation-balance data from model 2 and restricts the rotation-balance data to that component of the total angular rate that is steady state. The results indicate a significantly different motion resulting from the three aerodynamic data models when compared to each other and to full-scale flight test steady-state spin motions. The motions produced by the rotation-balance aerodynamic model more closely simulate the motions exhibited during the flight tests. (Author).
Note
"July 1978."
"Final Report: 1 July 1976 -- 30 June 1977."
Physical Description
101 pages : illustrations ; 28 cm
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