NASA Dryden Flight Research Center has developed a flush airdata sensing (FADS) system on a sharp-nosed, wedge-shaped vehicle. This paper details the design and calibration of a real-time angle-of-attack estimation scheme developed to meet the onboard airdata measurement requirements for a research vehicle equipped with a supersonic-combustion ramjet engine. The FADS system has been designed to perform in flights at speeds between Mach 3 and Mach 8 and at angles of attack between -6 deg. and 12 deg. The description of the FADS architecture includes port layout, pneumatic design, and hardware integration. Predictive models of static and dynamic performance are compared with wind-tunnel results across the Mach and angle-of-attack range. Results indicate that static angle-of-attack accuracy and pneumatic lag can be adequately characterized and incorporated into a real-time algorithm.


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    Title :

    Development of a Flush Airdata Sensing System on a Sharp-Nosed Vehicle for Flight at Mach 3 to 8


    Contributors:
    M. C. Davis (author) / J. W. Pahle (author) / J. T. White (author) / L. A. Marshall (author) / M. J. Mashburn (author)

    Publication date :

    2000


    Size :

    25 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






    Development of a Flush Airdata Sensing System on a Sharp-Nosed Vehicle for Flight at Mach 3 to 8

    Davis, Mark C. / Pahle, Joseph W. / White, John Terry et al. | NTRS | 2000


    Development of a Flush Airdata Sensing System on a Sharp-Nosed Vehicle for Flight at Mach 3 to 8

    Davis, Mark C. / Pahle, Joseph W. / White, John Terry et al. | NTRS | 2000


    Development of a Flush Airdata Sensing System on a Sharp-Nosed Vehicle for Flight at Mach 3 to 8

    Davis, M. C. / Pahle, J. W. / White, J. T. et al. | British Library Conference Proceedings | 2000