Q. Who invented Helicopter?
Answer: Sikorsky
Notes: 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 R-4 in 1942, which was the world’s first mass produced helicopter.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 103 in Discoveries & Inventions in above course in App.