Which helicopter became the world's first mass-produced helicopter?
Sikorsky R-4
Bell 47
Vought-Sikorsky VS-300
Sikorsky S-61
Answer
The Sikorsky R-4, a modified version of the Vought-Sikorsky VS-300, became the world's first mass-produced helicopter in 1942. This groundbreaking aircraft set the stage for the widespread use of helicopters in various industries and applications.
Soaring with Sikorsky: Test Your Knowledge of the Aviation Pioneer's Legacy
More Questions
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