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    The aerodynamic characteristics of six commonly used Airfoils over a large range of positive and negative angles of attack (1931)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: This paper presents the results of tests of six commonly used airfoils: the CYH, the N-22, the C-72, the Boeing 106, and the Gottingen 398. The lifts, drags, and pitching moments of the airfoils were measured through a large range of positive and negative angles of attack. The tests were made in the variable density wind tunnel of the National Advisory Committee for Aeronautics at a large Boeing 106, and the Gottingen 398 airfoils, the negative maximum lift coefficients were found to be approximately half the positive; but for the M-6 and the CYH, which have less effective values were, respectively, 0.8 and 0.6 of the positive values.
    Type: NACA-TN-397
    Format: application/pdf
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