Embodiments are directed to adding wing extensions outboard of the engine nacelles on tiltrotor aircraft to increase cruise efficiency. By using pivoting wing extensions, the download penalty during hover operations is decreased because the wing extensions will pivot into the downwash rather than act as a barrier. Freely pivoting wing extensions will align with the local airflow during conversion mode flight, which eliminates flow separation issues. The freely pivoting wing extensions also reduce gust response by rotating out of the way of turbulence and updrafts. A trailing edge trim flap provides simple and effective control of the incidence angle for the free-pivot wing extension.


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    Title :

    Tiltrotor Free-Pivot Wing Extension


    Contributors:

    Publication date :

    2020-03-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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