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The Cierva C.12 was an experimental autogyro built by Cierva Autogiro Company in England in 1929, in association with Avro. ==Development== Like most other Cierva designs, it was based on an existing aircraft fuselage - in this case, an Avro Avian. 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「Cierva C.12」の詳細全文を読む スポンサード リンク
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