A device which does for the aircraft what change speed gears do for the automobile is the invention of Spencer Heath. It comprises a system of special blades and a mechanism for varying the pitch of the blades from zero to 360 degrees, while in flight or otherwise.


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    Titel :

    The "Universal" Adjustable and Reversible Propeller Built by Paragon Engineers, Inc., Baltimore, Md


    Beteiligte:
    Bacon, David L (Autor:in)

    Erscheinungsdatum :

    01.11.1922


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




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