NDLI: Longitudinal stability and control derivatives of a jet fighter airplane extracted from flight test data by utilizing maximum likelihood estimation

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Longitudinal stability and control derivatives of a jet fighter airplane extracted from flight test data by utilizing maximum likelihood estimation

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bowles, R. L. Steinmetz, G. G. Parrish, R. V.
Copyright Year	1972
Description	A method of parameter extraction for stability and control derivatives of aircraft from flight test data, implementing maximum likelihood estimation, was developed and successfully applied to actual longitudinal flight test data from a modern sophisticated jet fighter. The results of this application establish the merits of the estimation technique and its computer implementation(allowing full analyst interaction with the program) as well as provide data for the validation of a portion of the differential maneuvering simulator (DMS). The results are presented for all flight test runs in tabular form and as time history comparisons between the estimated states and the actual flight test data. Comparisons between extracted and manufacturer's values for five major derivatives are presented and reveal good agreement for these principal derivatives with one exception. This particular derivative is extensively investigated by utilizing the interactive capabilities of the computer program. The results of this investigation verify the numbers extracted by maximum likelihood estimation.
File Size	1368644
Page Count	46
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19720010363
Archival Resource Key	ark:/13960/t8x96zs52
Language	English
Publisher Date	1972-03-01
Access Restriction	Open
Subject Keyword	Aircraft Flight Tests Tables Data Longitudinal Control Jet Aircraft Mathematical Models Maximum Likelihood Estimates Fighter Aircraft Longitudinal Stability Computer Programs Aircraft Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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