Question : Who invented the helicopter?
Option 1: Nicolaus Copernicus
Option 2: Igor Sikorsky
Option 3: Francis Cockrell
Option 4: Drinker
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Correct Answer: Igor Sikorsky
Solution : The correct answer is Igor Sikorsky.
The first successful multi-motor aircraft and the first production helicopter were both created by Igor Sikorsky. He was inducted into the International Air and Space Hall of Fame in 1966. He was born in 1889 and was a Russian-origin American aviation scientist. He designed and built the first successful single-rotor helicopter in the United States.
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