The technical report covers the extension of engineering and design work, environmental testing, and prototype balloon flights of 'Mylar' super-pressure balloons for long duration constant altitude. The first part of this study is concerned with the cold chamber testing of superpressure cylinder and spherical balloons and the attachment of load fittings. Also included are design modifications in the tailored-gore spherical balloon. Prototype balloon flights were made with one-mil cylinder-shaped balloons and 1-1/2-mil tetrahedralshaped balloons with a high degree of success. Four of the flights were tracked from 24 hours to 150 hours of instrumented flight at ceiling with no measured altitude changes. In each case the flights were terminated by load cut-down or the signal was lost. Two spherical balloons and two tetrahedral balloons were built for flight testing in the near future with instruments to measure internal and external balloon temperatures and pressures. (Author)


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    Titel :

    Superpressure Balloons


    Beteiligte:
    R. J. Slater (Autor:in)

    Erscheinungsdatum :

    1959


    Format / Umfang :

    100 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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