Sandia National Laboratories conducted a test of ribbon parachutes in the NASA Ames Research Center 9-ft by 7-ft Supersonic Wind Tunnel. The Ribbon parachutes were 15 inches in diameter with Kevlar-29 suspension lines and nylon ribbons. Both 20-degree conical parachutes and hemisflo parachutes were tested behind two forebody shapes with several forebody diameters. Drag data and color Schlieren photographs were obtained over a Mach number range of 1.5 to 2.5 and a dynamic pressure range of 200 to 400 lbs/ft sup 2 . Correlations of supersonic parachute drag with Mach number, forebody shape and diameter, canopy porosity, suspension line length, and inflated canopy diameter and stability are presented. (ERA citation 11:051598)


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    Title :

    Exploratory Testing of Supersonic Ribbon Parachutes in the NASA Ames 9-Ft by 7-Ft Wind Tunnel


    Contributors:

    Publication date :

    1986


    Size :

    11 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English