History: Flettner FL265 helicopter during a demonstration to high-ranking officials, some time in the 1940s [1200×854]

https://i.redd.it/85m2mq186o021.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/a0iyi8/flettner_fl265_helicopter_during_a_demonstration/?utm_source=ifttt