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Yakovlev Yak-14
The Yakovlev Yak-14 (NATO reporting name: "Mare", (ロシア語:Як-14)) was the largest assault glider ever to enter service with the Soviet Air Force. It was introduced in 1949, at a time when other air forces were abandoning the glider concept. In 1950 a Yak-14 became the first glider to fly over the North Pole.〔Gunston, Bill. ''Yakovlev Aircraft since 1924''. London, UK: Putnam Aeronautical Books, 1997. ISBN 1-55750-978-6.〕
==Design and development==
During World War II, the Soviet Union operated only light gliders like the Gribovski G-11, Antonov A-7 and Kolesnikov-Tsybin KC-20 which were unable to transport vehicles, light tanks or artillery. Only after the war were Soviet designers ordered to develop medium gliders capable of carrying heavy or bulky loads.〔("Як-14" ), ''Уголок Неба''. Retrieved 16 December 2011. (in Russian)〕 In 1948 the Soviet Air Forces issued a specification for a large assault glider needed by the ''VDV'' (''Vozdushnodesantnyye Voyska'' - airborne troops) which was to be capable of carrying a payload of , including loads like an anti-tank or field gun with its crew and associated tow vehicle, or up to 35 troops. The Yakovlev design bureau was instructed to design an aircraft to meet this requirement, despite its relative inexperience in the design of such large aircraft.〔Gunston and Gordon 1997, p. 104.〕〔Gordon et al 2005, p. 243.〕
Yakovlev's design, the Yak-14 was a high-wing monoplane. It had a rectangular section fuselage with a steel-tube and dural structure with a fabric covering. To aid loading and unloading of cargo, the aircraft's nose swung to the right with the tail section pivoting to the left. The two pilots sat side by side in an enclosed cockpit above the left side of the fuselage. They were provided with a display that used a transmitter in the towing aircraft to show the relative positions of the two aircraft when flying in cloud. The wings were made of dural and fabric and were braced to the fuselage by a single strut on each side. Large slotted trailing-edge flaps were fitted to the wings, while the aircraft was fitted with a fixed nosewheel undercarrige which could be made to "kneel" by releasing air from the pneumatic shock struts of the undercarriage, lowering the fuselage for ease of unloading or to make short landing on belly mounted skids.〔〔Gunston and Gordon 1997, pp. 104–105.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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