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Popular Mechanics 1928 11.pdf/48
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POPULAR MECHANICS
alt= It Is a Far Cry from the Crude Things of Bamboo and Silk Which First Carried Man into the Air to a Modern Single-Seater Fighter, Such as the British-Built Hawker "Hawfinch" at the Left: the Newest Ships Have Air-Cooled Radial Motors and Are Built to Stand Maneuvering at High Speed: with an Abundance of Power, They Can Fly in a Full Gale, Whereas the Aviator of Less Than Twenty Years Ago Had to Wait Perhaps for Days for Calm Weather One of the Queerest Inventions to Aid Aircraft Is the Propeller of the Constant-Speed Generator Used to Operate the Wireless Transmitter: the Propeller Has Only One Blade, with an Ingenious Arrangement That Keeps It Turning at a Fixed Speed despite Variations in the Speed of the Plane through the Air: the Photograph at the Left Shows Capt. Pietro Bonelli, Navigator and Radio Operator of the Sesqui-Plane "Roma," Built for Captain Sabelli's New York to Rome Flight; a Sesqui-Plane, as the Name Indicates, Has One and a Half Wings, the Lower Wing Really Being Merely a Broadening Out of the Struts Which Otherwise Would Brace the Wing of a Normal Monoplane
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