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Junkers Ju 46
The Junkers Ju 46 was a German shipborne catapult-launched seaplane derivative of the W 34, constructed for pre-war ''Luft Hansa''s mail service over the Atlantic ocean. The first production models were delivered in 1932 and replaced the Heinkel He 58, which, along with the He 12, had pioneered these ship-to-shore mail delivery flights.
==Design and development==
The Ju 46 was a strengthened version of the Junkers W 34, modified for catapult launches. It was externally essentially identical to the W 33 apart from a revised vertical tail. Compared to the W 34, this carried a broader-chord rudder with a more rounded trailing edge and a noticeably squared-off top. This revision improved control of the aircraft during the low-speed launch. The ship to shore aircraft were all seaplanes (floatplanes), though some Ju 46 were used with a fixed wheeled undercarriage and tail-skid at times in their careers. The aircraft was equipped with a 441 kW (591 hp) BMW-C radial engine. A total of five aircraft were supplied, according to rebuilt civil registers,〔http://www.goldenyears.ukf.net/〕 though other sources claim four.〔Turner, P. St.J and Nowarra, H ''Junkers an aircraft album no.3''. (1971).New York: Arco Publishing Inc. ISBN 978-0-668-02506-5〕 They were later equipped with more powerful BMW-E engines.
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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