The airlines of the future, most aeronautical engineers agree, will fly swiftly and serenely far above turbulent weather in the rarefied air of the substratosphere. Already air transports are being built with cabins in which, by supercharging, interior atmospheric pressure approximating that aground can be maintained at substratosphere levels. Mainly responsible for development of a supercharged cabin was the U. S. Army Air Corps. Last week the Air Corps received from President Roosevelt this year's Collier Trophy for "the greatest achievement in aviation whose value has been demonstrated in actual use."...
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