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The Blohm & Voss BV 142 was a German civil aircraft developed for the transatlantic airmail service, originally designed for the German national airline ''Luft Hansa''. The first prototype was flown on 11 October 1938. ==Design== The aircraft had four engines mounted on a low inverted gull monoplane wing, high horizontal stabilizer, and a double vertical tail, based on the Blohm & Voss Ha 139 seaplane. The wing center section was strengthened by a typical Blohm & Voss cross-girder, which consisted of a large-diameter pipe. This transverse tube (divided internally into five sections) also acted as a fuel tank. The center wing was metal-covered, while the outer wings were fabric-covered. There were six hydraulically-operated flaps in the mid-wing. The fuselage was of metal and had an approximately circular cross-section. Each main landing gear leg had dual wheels and was fully retractable, as was the tailwheel. The landing gear was hydraulically lowered and retracted. Only four prototypes (V1 through V4) were built. These aircraft were tested by ''Lufthansa'' and used briefly in the postal service. However, the outbreak of World War II ended further development of the civilian project. 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「Blohm & Voss BV 142」の詳細全文を読む スポンサード リンク
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