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Aerodynamic characteristics of the NACA 747A315 and 747A415 airfoils from tests in the NACA two-dimensional low-turbulence pressure tunnel

Louis S Stivers

Abstract

Report presenting two low-drag airfoils, the NACA 747A315 and the NACA 747A415, which are designed to have reduced pitching moments about the quarter-chord point and moderately high values of the design lift coefficient and are tested in the tow-dimensional low-turbulence pressure tunnel.

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Key concepts: Airfoil, NACA airfoil, Lift coefficient, Aerodynamics, Turbulence, Lift-to-drag ratio, Pitching moment, Pressure coefficient