Parameter Estimation for the NASA SR-71 Longitudinal and Lateral/Directional Dynamics. Meeting Paper AIAA-1999-4172, Research Engineering, NASA Dryden Flight Research Center

Iorio, Carla and Napolitano, Marcello R. and Seanor, Brad A. and An, Younghwan and Bowers, Albion H. (1999) Parameter Estimation for the NASA SR-71 Longitudinal and Lateral/Directional Dynamics. Meeting Paper AIAA-1999-4172, Research Engineering, NASA Dryden Flight Research Center.

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Abstract

The research described in this paper is related to a Parameter Identification (PID) study on the longitudinal and lateral/directional dynamics of the NASA SR-71 aircraft. The NASA SR-71 is a high altitude (85,000 ft), supersonic (Mach > 3) research aircraft and it is currently being flown at NASA Dryden Flight Research Center in Edwards, CA. The objective of this study is the determination of the longitudinal and lateral-directional aerodynamic stability and control derivatives from flight data using the Maximum Likelihood method coupled with a Newton-Raphson minimization technique. Results were obtained for the NASA SR-71 over a flight regime of [2 degrees - 6 degrees] angle of attack and a [0.5 - 3] Mach number range.

EPrint Type:	Other
Keywords:	SR-71 aircraft
Subjects:	Aircraft/Project: SR-71 Blackbird
ID Code:	1271
Deposited On:	06 Febuary 2007
Additional Information:	15 pages. American Institute of Aeronautics and Astronautics Atmospheric Flight Mechanics Conference and Exhibit, Portland, Oregon, August 9-11, 1999.