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SAE Technical Paper Series
This paper is concerned with the experimental study of the low-speed, sectional characteristics of a high-lift airfoil and the comparison of those characteristics with the predictions of the theoretical methods used in the airfoil's design. The 13.1-percent-thick, UI-1720 airfoil was found to achieve the predicted maximum lift coefficient of nearly 2.0. No uppersurface, flow separation was found below the stall angle of attack of 16 degrees; it appeared that stall was due to an abrupt leading-edge flow separation.doi:10.4271/740366 fatcat:3rga3axvy5ckvidpyh3gw43w2q