Question

WHO INVENTED HELECOPTER...​

Answer 1

• Igor Sikorsky invented the helicopter

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Answer 2

Answer:

Igor Sikorsky

Explanation:

Many inventors and engineers from all over the world built prototypes of helicopters after 1912, many of which were used in the first two world wars, but in the United States, Igor Sikorsky is credited with creating the first mass-produced helicopter in the history of flight.