Effect of ice and frost formations on drag of NACA 65(1)-212 airfoil for various modes of thermal ice protection

Vernon H. Gray, Uwe H. Von Glahn
Jun 1953

The effects of primary and runback icing and frost formation on the drag of an 8-foot-chord NACA 65(1)-212 airfoil section were investigated over a range of angles of attack from 2 to 8 degrees and airspeeds up to 260 miles per hour for icing conditions with liquid-water contents ranging from 0.25 to 1.4 grams per cubic meter and datum air temperatures of -30 to 30 degrees F.

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