Titre : The story of the rotor. With 106 ...
Éditeur : F. O. Willhofft, New York
Date d'édition : 1926
Reliure : Hard Cover
Etat du livre : Very Good-
Etat de la jaquette : No Dust Jacket
110 pages, frontispiece (portrait) plus xxx (i.e. 26) plates on 13 leaves, text diagrams, cloth, previous owners name and address on front blank endpaper, otherwise very good, clean tight copy. The numbers, IX, XVII, and XXIV and XXVIII are omitted in the numbering of the plates. These were not published in the English language edition. Quite scarce. Plates include First Tank with Wireless Distant Control built by BAMAG, First Flettner Rudder in a seagoing ship, Repeller Boat 'Bois-Rose', proposed by Constantin, a French engineer; Installing the After Rotor; The 3,000 ton Rotorship 'Barbara,' The First Flettner Rotor-Yacht; 60 Foot Windmill. Section headings: My first invention: the wireless distant control; From the airplane rudder to the ship's rudder; From the metal sail to the rotor; Rotor windpower plants. From the preface by Frederick.O. Willhofft: When in the spring of this year, Anton Flettner arrived in New York, he received a welcome such as is accorded only to celebrities of the very first rank, and when his creation, the Rotorship 'Baden Baden', one fine Sunday morning, after crossing the Atlantic, proudly sailed or 'rotored' up the Bay past the Statue of Liberty and almost to her berth at the Battery, the publicity given to the inventor and to his mystery ship amazed even hardened veterans of the journalistic profession. Here was a man who had truly revolutionized the art of harnessing the wind, who had replaced a device, used in essentially unaltered form for thousands of years, the canvas sail, by a modern machine, ten times as efficient and requiring no crew for handling.' From Anton Flettner's obituary in the New York Times; 'Mr. Flettner was president of the Flettner Aircraft Corporation , a research and development concern. After serving Germany in both World Wars, he came to USA soon after World War II as a consultant to the office of Naval Research (US Navy Department). He was actively engaged in carrying out US government research projects for the Army, Air Force and Navy until a few months ago. Mr. Flettner was born in Germany and attended the Fulda State Teachers College in Germany. When he was teaching mathematics and physics in a high school in Frankfurt, he began to develop ideas leading to his work for Germany in World War I. During the war he developed what was perhaps his best known invention. It is called Flettner 's control. The control was fashioned to lift or lower a plane's nose. It is considered the model for trim tabs used on almost all planes to aid in control movement or to help achieve hands-off balance. After the control 's development for aircraft it was adapted to ship rudders. In the war, Mr. Flettner also invented tanks improvements for Germany. After the war, he was named managing director of the Institute for Aero and Hydro Dynamics, Amsterdam, The Netherlands. He held that post until 1931. In the Nineteen-twentys, he developed his Wind Ship or Rotor Ship in which propulsion was achieved by pressures and vacuums created by winds channeled around two rotating towers. The ship received a noisy welcome in USA in 1926 and was praised by Dr. Albert Einstein as having great practical importance, but it was not a commercial success. From 1926 to 1945, Mr. Flettner was president of the Anton Flettner Aircraft Corporation in Berlin. It built helicopters used by Hitler 's forces in World War II. The helicopters had two rotors whose blades intermeshed like egg beaters. This development was widely used by manufacturers in USA.'. N° de réf. du libraire 18675
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