The English language Wikipedia article on the Focke-Wulf Fw 61, the twin rotor aircraft whose 26 June 1936 first flight is credited as the first successful, practical and fully controllable helicopter flight.
Facts
PublisherWikimedia Foundation
URLhttps://en.wikipedia.org/wiki/Focke-Wulf_Fw_61
Source TypeReference Work
Reliability Tier2
Sources
Focke-Wulf Fw 61 (Wikipedia)
Claims Backed By This Source (11 claims)
This source backs 11 claims across the atlas. As facts: 8 well-attested. As cited relationships: 2 holds. Plus 1 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Inventions, 6 claims: 3 well-attested, 2 holds, 1 general references.
- Sources, 5 claims: 5 well-attested.
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