An unmanned aircraft system (10) has a vertical takeoff and landing flight mode and a forward flight mode. The unmanned aircraft system (10) includes an airframe (12), a rotor assembly (34) rotatably coupled to the airframe (12) and a propeller (48) rotatably coupled to the airframe (12). The rotor assembly (34) includes at least two rotor blades (40a-b) having tip jets (42a-b) that are operably associated with a compressed gas power system (50). The propeller (48) is operably associated with an electric power system (52). In the vertical takeoff and landing flight mode, compressed gas from the compressed gas power system (50) is discharged through the tip jets (42a-b) to rotate the rotor assembly (34) and generate vertical lift. In the forward flight mode, the electric power system (52) drives the propeller (48) to generate forward thrust and autorotation of the rotor assembly (34) generates vertical lift.


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    Title :

    HYBRID POWERED UNMANNED AIRCRAFT SYSTEM


    Additional title:

    HYBRID ANGETRIEBENES UNBEMANNTES FLUGZEUGSYSTEM
    SYSTÈME D'AÉRONEF SANS PILOTE A PROPULSION HYBRIDE


    Contributors:

    Publication date :

    2020-02-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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