Word: deicers
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Dates: during 1940-1949
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Most effective and widely used device now is a deicer: B. F. Goodrich's "rubber-boot"-a rubber strip fastened in place along the leading edges of the wings. When the pilot shoots compressed air into the boot, it expands and contracts, the ice cracks off. But the addition of the rubber strip increases the wind drag on the plane, i.e., decreases its lift; the strip has to be taken off during the summer months to make it last even as long as two winters; repair jobs are frequently necessary on spots subject to severe strain. A ground check...