In order to reduce noise, the invention proposes an airfoil profile (30) for an aircraft (10), such as an unmanned aerial system (11). The airfoil profile (30) comprises a leading edge portion (31) and a trailing edge portion (32) that are spaced apart along a chordwise direction, an airfoil centroid (33); and an upper airfoil surface (40) and a lower airfoil surface (50). The airfoil surfaces (40, 50) are shaped such that the pressure center (Cp) of the lifting force is arranged at the same chord location as the airfoil centroid (33) or closer to the trailing edge portion (32) along the chordwise direction than the airfoil centroid (33). With this, a pitchdown momentum is generated that urges the leading edge portion (31) towards a lower angle of attack (AoA).


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    PROPELLER BLADE USING AN AIRFOIL PROFILE


    Weitere Titelangaben:

    PROPELLERBLATT MIT EINEM TRAGFLÄCHENPROFIL
    PALE D'HÉLICE UTILISANT UN PROFIL AÉRODYNAMIQUE


    Beteiligte:

    Erscheinungsdatum :

    02.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



    Rotor craft, propeller blade of rotor craft and airfoil profile of propeller blade

    MAO YINIAN / ZHOU DONGYUE / JIANG XINHONG et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Propeller blade profile

    CHEN FENG / ZAN BINGHE / ZENG QINGJUE et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Propeller blade or airfoil with hollow composite root

    D 'ASSIER PIERRE JEAN FEVRE / POUSTEC CLEMENT PIERRE / MASON VINCENT et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Full Range Airfoil Polars for Propeller Blade Element Momentum Analysis

    Morgado, J. / Silvestre, M. / Pascoa, J. | British Library Conference Proceedings | 2013


    Propeller blade or airfoil with root wound with composite material

    DASSEL PIERRE JEAN FAVRE / POUSTEC CLEMENT PIERRE / CHARRIER FRANCOIS et al. | Europäisches Patentamt | 2024

    Freier Zugriff