Science: Stainless-Steel Airplanes

A revolutionary trend in airplane production got off the ground last week: stainless steel. Aluminum, which has hitherto been aircraft metal No. 1, had a challenger on the production lines and battlefronts, and in the post-war future.

> In Philadelphia, for Budd Manufacturing Co.—biggest U.S. builder of stainless-steel trains—the Government began to run up a vast plant which by next spring will be turning out all-steel air freighters, big-bellied and wide-hatched to carry troops, tanks, guns to the war's four quarters.

> In Cleveland, metallurgists of Union Carbide & Carbon—biggest U.S. maker of...

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