Flight testing of the X-31A post-stall experimental aircraft started in October 1990. Within the international 'Combined X-31A Flight Test Team', DLR contributes its system identification experience and capabilities for the determination of aerodynamic parameters from flight test data. The paper presents a brief description of the hard- and software for flight test data evaluation applied by DLR to support the X-31A project on-site. It describes the different steps of the data reduction and the models used for system identification. Selected results which were achieved mainly on the basis of data from flight test conducted for handling qualities investigations are shown and compared to wind tunnel predictions. The paper discusses the aspects of on-site system identification for flight test support, including the difficulties arising from working on a low-cost program. It is based on the experience made during the initial envelope expansion of the X-31A.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    System Identification for X-31A Project Support: Lessons Learned So Far


    Contributors:
    S. Weiss (author) / E. Plaetschke (author) / D. Rohlf (author) / H. Galleithner (author)

    Publication date :

    1992


    Size :

    11 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    The Cassini Project: Lessons Learned Through Operations

    McCormick, E. D. / University of New Mexico; School of Engineering; Institute for Space and Nuclear Power Studies | British Library Conference Proceedings | 1998



    Lessons Learned from the Oakland County IVHS Project

    Carty, P. J. / Intelligent Vehicle Highway Society of America | British Library Conference Proceedings | 1993


    NASA Undergraduate Student Instrument (USIP) Project--Lessons Learned

    J. L. Winterton / D. Pierce / J. Letchworth et al. | NTIS | 2019


    Project Morpheus: Lessons Learned in Lander Technology Development

    Olansen, Jon B. / Munday, Steve / Devolites, Jennifer et al. | AIAA | 2013