The patent relates to a variable lift inflatable airfoil for tethered balloons having a horizontal fin made up of two inflatable chambers. The primary or lower chamber is normally maintained at a greater pressure than the secondary or upper chamber. Proper inflation and deflation of the secondary chamber will stabilize the pitch attitude of the balloon at some desirable low, positive angle for any wind velocity. (Author)


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    Title :

    Variable Lift Inflatable Airfoil for Tethered Balloons


    Contributors:

    Publication date :

    1977


    Size :

    8 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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