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Gleb Yevgeniyevich Kotelnikov (''Котельников, Глеб Евгеньевич'' in Russian, – November 22, 1944), was the Russian-Soviet inventor of the knapsack parachute (first in the hard casing and then in the soft pack), and braking parachute. In 1894, Kotelnikov graduated from the Kiev Military School. In 1911, he created his first parachute RK-1 (which stands for Rantseviy (knapsack) or Russian Kotelnikova (by Kotelnikov), 1st model), that was successfully employed in 1914 during World War I. Later on, Kotelnikov significantly improved the design of his parachute, creating new models, including RK-2 with a softer knapsack, RK-3, and a few cargo parachutes, all of which would be adopted by the Soviet Air Force. Having witnessed the death of a talented Russian pilot Lev Matsivich and been shocked by it, he became obsessed with the idea of constructing a parachute, to which he devoted several years of his life as well as all his personal savings. In 1911 he applied for a patent to the Committee on Inventions in France and was granted the patent under the number 438612, in which he summarized the function of his parachute: The working principle of the apparatus is as follows: At first G.Kotelnikov called his invention a safety apparatus, a knapsack-parachute and later on it got the name of RK-1. In 1912, on a road near Tsarskoye Selo (now part of St. Petersburg) Kotelnikov successfully demonstrated the braking effects of the parachute by accelerating a Russo-Balt automobile to the top speed, and then opening a parachute attached to the back seat, thus inventing the drogue parachute.〔(Parachuting ) at the site Divo: The Russian Book of records and achievements 〕 In aviation, however, drag chutes were used for the first time only in 1937 by the Soviet airplanes in the Arctic that were providing support for the famous polar expeditions of the era, such as the first manned drifting ice station North Pole-1, launched the same year. The drag chute allowed to land safely on the ice-floes of smaller size.〔 Kotelnikov continued to be an important figure in the development of parachutes and parachuting in the Soviet Union. In 1924 Kotelnikov for the first time applied the soft packing of parachute instead of a hard casing.〔(Russian parachute of Kotelnikov ) 〕 He produced some of the earliest cargo parachutes, and was a contemporary to the start of the parachuting sport in Russia in 1930〔 and the creation of the Soviet Airborne Troops the same year (the first paratrooping force in history).〔 In his late years, Kotelnikov wrote a book about the invention and subsequent development of parachutes. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gleb Kotelnikov」の詳細全文を読む スポンサード リンク
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