A wingsail comprising: a first aerofoil having a leading edge at a front of the wingsail and a trailing edge behind the leading edge; and second aerofoil having a leading edge and a trailing edge, the leading edge of the second aerofoil being closer than the trailing edge of the second aerofoil to a point of maximum cross-sectional width (105c) of the second aerofoil; wherein the wingsail is configured such that the leading edge of the second aerofoil can be positioned behind the trailing edge of the first aerofoil; wherein the first aerofoil comprises a powered boundary layer flow control device.


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    Title :

    WINGSAIL AND METHOD


    Additional title:

    FLÜGELSEGEL UND VERFAHREN
    VOILE EN FORME D'AILE ET PROCÉDÉ


    Contributors:

    Publication date :

    2025-02-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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