When and how did the first helicopter take flight?

On September 14, 1939, the vs-300, the world's first practical helicopter took flight at Stratford, Connecticut. It was designed by Igor Sikorsky, and it was built by the Vought Sikorsky Aircraft Division of The United Aircraft Corporation. This helicopter was the first to incorporate a single main rotor and tail rotor design. The helicopter was the first to integrate a single main rotor and tail rotor design.

Helicopters could fly for multiple hours, and they were beginning to be manufactured and sold to governments across the world. The true genius behind Sikorsky's helicopters is the fact that he figured out a sophisticated control system that allows the rotor blades to be adjusted to create lift and horizontal motion at the same time.