Aeronautics: Paddleplane on Paper

"To ascend vertically. . .

"To descend vertically at any desired speed. . .

"To stand still in mid-air for an indefinite period. . .

"To turn around in mid-air on its vertical axis, or

"To fly backwards. . .

"The only thing it cannot do, according to its inventors, is crash."

Last week the Curtis-Martin newspapers (New York Evening Post, Philadelphia Public Ledger and Inquirer) excitedly front-paged the "invention" of such a revolutionary airplane in Germany. The story, sent from Berlin by Pulitzer-Prize-winning Correspondent Hubert Renfro Knickerbocker, reported experiments by Dr. Adolf Rohrbach, head of...

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