Methods and apparatus for vertical or short takeoff and landing. In one embodiment, the apparatus comprises two or more counter driven rings with one or more airfoils attached. In one variant, there is an upper ring and a lower ring, each with multiple airfoils attached. In one variant, lift is generated largely via ambient air currents, allowing for long term on-station operation of the device.


    Access

    Download


    Export, share and cite



    Title :

    APPARATUS FOR VERTICAL/SHORT TAKEOFF AND LANDING


    Additional title:

    VORRICHTUNG FÜR VERTIKALEN/KURZEN START UND LANDUNG
    APPAREIL POUR DÉCOLLAGE ET ATTERRISSAGE VERTICAUX/COURTS


    Contributors:

    Publication date :

    2019-06-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge