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The Yakovlev Yak-19 was a prototype Soviet fighter aircraft built in 1947. It was the second Yakovlev jet fighter after the Yak-15, and the first OKB aircraft designed from the onset to have an all-metal stressed skin, and a hydraulic system. The Yak-19 was the second Soviet aircraft to use an afterburning turbojet, the Klimov RD-10F, and the last Yakovlev Aircraft to use a version of the German Jumo 004-derived RD-10 jet engine. Only two examples were built. USAF/DoD reporting name - "Type 7".〔http://www.designation-systems.net/non-us/soviet.html#_DOD_Type〕 ==Design and development== In the spring of 1946 OKB-115 set about designing the Yak-19. The aircraft was to have mid set, all-metal, straight wings and levered-suspension tricycle undercarriage, which would become the datum for future Fighter development in the USSR. The design of the Yak-19 was a radical departure from the "step" layout of the earlier Yak-15 and Yak-17. All tail surfaces were of metal construction, though only the elevators had tabs. The tricycle landing gear were pneumatically operated, and had three nitrogen/oleo struts. The nosewheel was castoring, and retracted forward behind the engine ducts, faired by two doors. Fuel capacity was 815 liters (179.3 gallons) in two fuselage tanks, plus an additional 11 liters stored in the starter engine to assist ignition of the afterburner, which was fueled by a separate electrically driven pump. The cockpit had a bullet-proof windscreen. A RSIU-6 radio was standard. Armament consisted of two Nudelman-Suranov NS-23 cannons, with 70-75 rounds each. 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「Yakovlev Yak-19」の詳細全文を読む スポンサード リンク
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