Question : Who invented of 'Helicopter' ?
Option 1: Igor Sikorsky
Option 2: Louis Breguet
Option 3: Otis Boykin
Option 4: Frank Whittle
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Correct Answer: Igor Sikorsky
Solution : The correct answer is Igor Sikorsky.
The helicopter is attributed to Igor Sikorsky. Sikorsky, a Russian-American aviation pioneer, created the VS-300, the first commercially viable helicopter, in 1939.
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Question : Who invented Helicopter?
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