Question

who has invented the first helicopter​

Answer 1

Answer:

Igor Sikorsky

Igor Sikorsky was an American citizen born in Russia who invented the first mass-produced helicopter, which was known as the R-4. Indeed, there were a total of 100 of these helicopters made at the time, and they played significant roles during World War II.

Answer 2

Answer:

Hi mate here is your answer

Explanation:

Igor Sikorsky

Paul Cornu

Arthur M. Young

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