This Week’s Hints to help you along:
So do you know what this aircraft is?
Click here to check out the previous What’s That?
This aircraft is a Union Aircraft Co, Long Island, New York. It was built in 1931. The rotors were driven by two 28 HP Indian motorcycle engines. There is no record of flight.
I think it is the Popper M-1.
The concept of Magnus/ Coanda effect wings and lift generating devices had a recent remake, you can look at it, with references, in the Wikipedia article: ‘Fanwing’, from the company that got an EU grant to study the concept of Flettner rotor wing. J Seifert published: ‘A review of the Magnus effect in Aeronautics’
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