Overshoes

One year ago Dr. William Chauncey Geer, researcher for B. F. Goodrich Co. revealed a means he had devised to prevent the formation of ice on the wings of airplanes (TIME, April 14, 1930). He affixed rubber "overshoes," impregnated with oil, to the leading edges of the wings, and to struts, tail surfaces, flying wires. By means of a motor-driven pump, the overshoes were made to pulsate--to loosen the ice as quickly as it could form. The ice would be blown away. Last week at Akron, the Goodrich company announced that a Lockheed Vega and a Douglas mail plane equipped with Dr. Geer's overshoes had been flown for the past four months under worst conditions (just below 32% in moist atmosphere). The planes' flying performance was unaffected. Geer overshoes are to be shown the public for the first time at the National Aircraft Show in Detroit, April 11-20.

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