The invention is related to a rotorcraft 1 with at least one main rotor 1a and at least one counter-torque rotor 11a, comprising: at least one duct-type portion 10 provided with a shroud 3 that defines at least one transverse duct 6, said at least one counter-torque rotor 11a comprising a plurality of counter-torque rotor blades 13 and being rotatably arranged within said at least one transverse duct 6, and said shroud 3 being equipped in the region of said at least one transverse duct 6 at least partly with a liner arrangement 3a, said liner arrangement 3a being at least adapted for tonal and broadband sound absorption.


    Access

    Download


    Export, share and cite



    Title :

    Rotorcraft with at least one main rotor and at least one counter-torque rotor


    Additional title:

    Drehflügler mit mindestens einem Hauptrotor und mindestens einem Rotor zum Drehmomentausgleich
    Giravion avec au moins un rotor principal et au moins un rotor anti-couple


    Contributors:

    Publication date :

    2019-01-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Rotorcraft with at least one main rotor and at least one counter-torque rotor

    PONGRATZ REINHARD / SCHNEIDER SASCHA | European Patent Office | 2015

    Free access

    ROTORCRAFT WITH AT LEAST ONE MAIN ROTOR AND AT LEAST ONE COUNTER-TORQUE ROTOR

    PONGRATZ REINHARD / SCHNEIDER SASCHA | European Patent Office | 2015

    Free access

    ROTORCRAFT WITH AT LEAST ONE MAIN ROTOR AND AT LEAST ONE COUNTER-TORQUE ROTOR

    PONGRATZ REINHARD / SCHNEIDER SASCHA | European Patent Office | 2015

    Free access

    ROTORCRAFT WITH A FUSELAGE AND AT LEAST ONE MAIN ROTOR

    EMBACHER MARTIN | European Patent Office | 2015

    Free access

    Rotorcraft with a fuselage and at least one main rotor

    EMBACHER MARTIN | European Patent Office | 2016

    Free access