Fw 61 (航空機)
1. Focke-Wulf Fw 61The Focke-Wulf Fw 61 is often considered the first practical, functional helicopter, first flown in 1936. It was also known as the Fa 61, as Focke began a new company—Focke Achgelis—after development had begun.
Read “Focke-Wulf Fw 61” on English Wikipedia
Read “Fw 61 (航空機)” on Japanese Wikipedia
Read “Focke-Wulf Fw 61” on DBpedia
Read “Focke-Wulf Fw 61” on English Wikipedia
Read “Fw 61 (航空機)” on Japanese Wikipedia
Read “Focke-Wulf Fw 61” on DBpedia
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