History: One of the aviation Pioneers, Igor Sikorsky at the controls of an R-5 helicopter, 1945. [500x718]

https://i.redd.it/8i21wi2wguv31.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/dpkzkt/one_of_the_aviation_pioneers_igor_sikorsky_at_the/?utm_source=ifttt