A rotorcraft (1) includes a fuselage (2), rotors (3) and circular wings (14). The rotors (3) are attached to the fuselage (2). The rotors (3) are attached to the fuselage (2). The circular wings (14) are disposed under the rotors (3) respectively. Upper surfaces of the circular wings (14) have annular curved surfaces and thereby are convex upward respectively. The circular wings (14) cause Coanda effects by the upper surfaces respectively. First lift is generated by rotating the rotors (3). Second lift is generated by the Coanda effects by the circular wings (14). Third lift is generated by air jets deflected downward along the upper surfaces of the circular wings (14) respectively.


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    Title :

    ROTORCRAFT


    Additional title:

    DREHFLÜGELFLUGZEUG
    GIRAVION


    Contributors:

    Publication date :

    2024-05-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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