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Mitsubishi Ki-20 : ウィキペディア英語版 | Mitsubishi Ki-20
The Mitsubishi Ki-20 is a Japanese bomber variant of the Junkers G.38 airliner. Mitsubishi manufactured six aircraft under license from Junkers. These aircraft, designated Army Type 92 Heavy Bomber, served through the 1930s. During World War II, the Ki-20 served in a variety of transport and support roles. ==Design and development== In the late-1920s, as Junkers developed the Junkers G.38, Mitsubishi representatives in Germany expressed an interest in a military version of this civilian transport. At the time, the G.38 was the largest landplane in the world. Junkers completed a design study for a military bomber/transport, based on the G.38, designated the K.51. This design was not accepted by the Reichsluftfahrtministerium. The K.51 design study was, however, of interest to Japan. A licensing and manufacturing agreement was reached and in 1932 the first two Ki-20s were completed by Mitsubishi, utilizing Junkers-made parts. A prototype was successfully flown in Japan by a German test pilot in that year. Four additional Ki-20s were built between 1933 and 1935. All of these subsequent models utilized Mitsubishi-built parts. Ongoing development focused on engine upgrades to all examples to address the persistent issue of the aircraft being underpowered. Several engine upgrades were completed during the lifetime of these aircraft. The initial Junkers L88 engines were replaced by the more powerful Jumo 204 engines, also built under license by Mitsubishi. Additionally Kawasaki Ha-9 engines were utilized for testing purposes.
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「Mitsubishi Ki-20」の詳細全文を読む
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