A yaw control system for a helicopter having a tailboom includes one or more tail rotors rotatably coupled to the tailboom and a quiet mode controller. The quiet mode controller includes a noise monitoring module configured to monitor one or more flight parameters of the helicopter and a quiet mode command module configured to selectively switch the one or more tail rotors to a quiet mode based on the one or more flight parameters. The quiet mode command module is also configured to modify one or more operating parameters of the one or more tail rotors in the quiet mode to reduce noise emitted by the helicopter.


    Access

    Download


    Export, share and cite



    Title :

    Rotorcraft Quiet Modes


    Contributors:

    Publication date :

    2022-06-02


    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 / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



    Rotorcraft quiet modes

    BUSTAMANTE MARC / OUELLET MARC / DUGRÉ ALEXIS et al. | European Patent Office | 2023

    Free access

    ROTORCRAFT QUIET MODES

    BUSTAMANTE MARC / OUELLET MARC / DUGRE ALEXIS et al. | European Patent Office | 2023

    Free access

    Quiet Redundant Rotorcraft

    SADA JAIME GUILLERMO / ARELLANO ESCARPITA DAVID ALEJANDRO | European Patent Office | 2020

    Free access

    A QUIET REDUNDANT ROTORCRAFT

    SADA JAIME GUILLERMO / ARELLANO ESCARPITA DAVID ALEJANDRO | European Patent Office | 2020

    Free access

    Design of Quiet Rotorcraft Approach Trajectories

    Padula, Sharon L. / Burley, Casey L. / Boyd, D. Douglas, Jr. et al. | NTRS | 2009