A test was conducted in the 16-ft supersonic tunnel to obtain drag, inflation, and stability characteristics of a metal ballute, a cloth ballute, and three hemisflo parachutes (5-, 10-, and 15-percent porosity). The cloth and metal ballutes were investigated at Mach numbers of 2.5 and 2.9, respectively, at a dynamic pressure of 120 psfa. The hemisflo parachutes were investigated at a Mach number of 2.6 at a dynamic pressure of 120 psfa. The drag coefficient of the hemisflo parachutes decreased as canopy porosity increased. There was no discernible effect of canopy porosity on stability of the parachutes. %Author)


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    Title :

    Aerodynamic Characteristics of Ballutes and Hemisflo Parachutes at Mach Numbers of 2.5, 2.6, and 2.9


    Contributors:

    Publication date :

    1965


    Size :

    31 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English