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Who invented Helicopter?
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- Copernicus
- Sikorsky
- Cockrell
- Drinker
Correct Option: B
Attempts to create helicopters can be traced back to Leonardo da Vinci, but the first working prototype helicopter, the VS-300, was invented by Igor Sikorsky in 1939. The next model he designed was the R4 in 1942, which was the world’s first mass produced helicopter.