The hybrid upper surface blowing concept consists of wing-mounted turbofan engines with a major portion of the fan exhaust directed over the wing upper surface to provide high levels of propulsive lift, but with a portion of the fan airflow directed over selected portions of the airframe to provide boundary layer control. NASA-sponsored preliminary design studies identified the hybrid upper surface blowing concept as the best propulsive lift concept to be applied to the Quiet Short-Haul Research Aircraft (QSRA) that is planned as a flight facility to conduct flight research at low noise levels, high approach lift coefficients, and steep approaches. Data from NASA in-house and NASA-sponsored small and large-scale wind tunnel tests of various configurations using this concept are presented.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Hybrid upper surface blown flap propulsive-lift concept for the Quiet Short-Haul Research Aircraft


    Contributors:

    Conference:

    Propulsion Conference ; 1975 ; Anaheim, CA


    Publication date :

    1975-09-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English