A project to identify a full-envelope model of the YAV-8B Harrier using flight-test and parameter identification techniques is described. As part of the research in advanced control and display concepts for V/STOL aircraft, a full-envelope aerodynamic model of the Harrier is identified, using mathematical model structures and parameter identification methods. A global-polynomial model structure is also used as a basis for the identification of the YAV-8B aerodynamic model. State estimation methods are used to ensure flight data consistency prior to parameter identification.Equation-error methods are used to identify model parameters. A fixed-base simulator is used extensively to develop flight test procedures and to validate parameter identification software. Using simple flight maneuvers, a simulated data set was created covering the YAV-8B flight envelope from about 0.3 to 0.7 Mach and about -5 to 15 deg angle of attack. A singular value decomposition implementation of the equation-error approach produced good parameter estimates based on this simulated data set.


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    Title :

    Full-Envelope Aerodynamic Modeling of the Harrier Aircraft


    Contributors:

    Publication date :

    1986


    Size :

    18 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






    Harrier!

    Online Contents | 1994


    Harrier

    Caffee, S. | NTRS | 1985