Provided is a blade (1) for a helicopter anti-torque device, comprising a duct rotor wing (13); the blade (1) comprises different section components, a leading edge (2) and a rear edge (2), wherein the blade comprises components composed of at least two sections (5)(6), stacking lines (4) of each wing type extending at a distance ranging between 25 and 50 percent of a wing chord (C) from the leading edge (2) of an aerodynamic profile, wherein the stacking lines (4) is in a curve shape in the surface of the blade (1); the curve is successively provided with a sweepback, a sweepforward and a last sweepback; and a wing chord (C) becomes bigger when moving towards the section (6) of the blade (1) from at least an end portion wing type (1a) so as to reach an end portion wind value; the end portion wing value is smaller than or equal to 1.6 times of a reference cord (Cref) of the root section (5) of the blade (1).


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Blade for a helicopter anti-torque device


    Beteiligte:
    GERVAIS MARC (Autor:in) / GRESLE BENOIT (Autor:in) / FINCK SEBASTEIN (Autor:in) / SUDRE LAURENT (Autor:in)

    Erscheinungsdatum :

    2015-04-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



    Blade for a helicopter anti-torque device

    GERVAIS MARC / GRESLE BENOIT / FINCK SEBASTEIN et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    A BLADE FOR A HELICOPTER ANTI-TORQUE DEVICE

    Europäisches Patentamt | 2015

    Freier Zugriff

    A BLADE FOR A HELICOPTER ANTI-TORQUE DEVICE

    Europäisches Patentamt | 2017

    Freier Zugriff

    Helicopter Anti-Torque Rotor

    WANG JAMES | Europäisches Patentamt | 2017

    Freier Zugriff

    Helicopter anti-torque rotor

    WANG JAMES | Europäisches Patentamt | 2016

    Freier Zugriff