This paper describes the pre-flight stage separation analysis that was conducted in support of the final flight of the X-43A. In that flight, which occurred less than eight months after the successful Mach 7 flight, the X-43A Research Vehicle attained a peak speed of Mach 9.6. Details are provided on how the lessons learned from the Mach 7 flight affected separation modeling and how adjustments were made to account for the increased flight Mach number. Also, the procedure for defining the feedback loop closure and feed-forward parameters employed in the separation control logic are described, and their effect on separation performance is explained. In addition, the range and nominal values of these parameters, which were included in the Mission Data Load, are presented. Once updates were made, the nominal pre-flight trajectory and Monte Carlo statistical results were determined and stress tests were performed to ensure system robustness. During flight the vehicle performed within the uncertainty bounds predicted in the pre-flight analysis and ultimately set the world record for airbreathing powered flight.


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    Titel :

    Mach 10 Stage Separation Analysis for the X43-A


    Beteiligte:
    Tartabini, Paul V. (Autor:in) / Bose, David M. (Autor:in) / Thornblom, Mark N. (Autor:in) / Lien, J. P. (Autor:in) / Martin, John G. (Autor:in)

    Kongress:

    44th AIAA Aerospace Sciences Meeting and Exhibit ; 2006 ; Reno, NV, United States


    Erscheinungsdatum :

    2007-01-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




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