An airfoil section of a blade 32 for an open rotor includes: a pressure side 38 and a suction side 40, the pressure side 38 and the suction side 40 intersecting at a leading edge 42 and a trailing edge 44, wherein a chord of the airfoil section is defined as a straight-line distance between the leading edge 42 and the trailing edge 44; the airfoil section has a meanline 48 defined midway between the pressure side 38 and the suction side 40; the meanline 48 is shaped such that it includes a predetermined total turning; the meanline 48 is shaped such that less than 15% of the total turning occurs from 40% to 75% of the chord; and the meanline 48 is shaped such that greater than 35% of the total turning occurs in the aft 25% of the chord.


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    Title :

    LOW-NOISE AIRFOIL FOR AN OPEN ROTOR


    Additional title:

    GERÄUSCHARMER TRAGFLÜGEL FÜR EINEN OFFENEN ROTOR
    PROFIL AÉRODYNAMIQUE À FAIBLE BRUIT POUR ROTOR OUVERT


    Contributors:

    Publication date :

    2023-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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