A counterweight (100) for use in a variable-pitch propeller system (300), comprises: a weighted element (110) having walls forming a sealed chamber (112), the sealed chamber containing a weighting material, and an arm (120); wherein the counterweight is configured to be coupled to a propeller blade (210); and wherein the walls of the weighted element and the arm comprise a single piece, and are an additively manufactured single piece. The weighting material may comprise a powder element (114). The sealed chamber (112) may have been sealed during the additive manufacturing process, or after the additive manufacturing process has been completed. A method of manufacturing a counterweight (100) is also disclosed.


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    Title :

    PROPELLER COUNTERWEIGHT


    Additional title:

    PROPELLERGEGENGEWICHT
    CONTREPOIDS D'ÉQUILIBRAGE D'HÉLICE


    Contributors:

    Publication date :

    2019-07-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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