Theoretical pressure distributions have been calculated and the experimental aerodynamic characteristics determined at low speeds for a selected group of the NACA four-digit-series airfoil sections which have previously been modified for high-speed applications. The experimental investigation which was made in the Langley two-dimensional low-turbulence pressure tunnel consisted of measurements of the lift, drag, and pitching-moment characteristics of each of the plain airfoils at Reynolds numbers of 3.0 x 10(6), 6.0 x 10(6), and 9.0 x 10(6).


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    Title :

    Aerodynamic Characteristics of a Number of Modified NACA Four-Digit- Series Airfoil Sections


    Publication date :

    1948


    Size :

    38 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English