Analytical Techniques for the Analysis of Stall/Spin Flight Test Data 810599
Analytical techniques for the analysis of stall/spin flight test data are reviewed by discussing (1) certain special flight instrumentation issues, (2) the mathematical modeling techniques, and (3) the analysis of post stall and spinning flight of general aviation airplanes. The angles of attack, sideslip, roll, pitch, and yaw are derived from measurements of angular velocity and linear acceleration. The key to the success of this approach is to simultaneously estimate both the biases in the instrumentation and the initial conditions. Techniques for determining stability derivatives from flight data are applied to angles of attack too high for stabilized flight. This practice greatly expands the range over which aerodynamic characteristics can be determined from flight test. Nonlinear terms in certain aerodynamic functions are shown to be valid by comparing them with the trends of results at different angles of attack A very old technique of studying spins is extended and applied to some modern light airplanes. Airplanes for which the wing provides the dominant moments during spins, offer the possibility of linking spin characteristics to longitudinal data.
Citation: Taylor, L. and Klein, V., "Analytical Techniques for the Analysis of Stall/Spin Flight Test Data," SAE Technical Paper 810599, 1981, https://doi.org/10.4271/810599. Download Citation
Author(s):
Lawrence W. Taylor, Vladislav Klein
Pages: 14
Event:
Business Aircraft Meeting and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1981Transactions-V90-A
Related Topics:
Business and general aviation aircraft
Flight tests
Aerodynamics
Mathematical models
Stall
Vehicle acceleration
Slip
Pitch
Roll
Yaw
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