Nicolas Florine

Nicolas Florine (born Nikolay Anatolyevich Florin; Russian: Николай Анатольевич Флорин; 19 July 1891 in Batum, Kutais Governorate, Russian Empire – 21 January 1972 in Brussels, Belgium) was a Russian-born engineer who settled in Belgium. He built the first tandem rotor helicopter in 1927 — a flying scale model and full size helicopter was built in 1933.

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