“The helicopter was always my father’s first love,” said Igor’s son and company ambassador Sergei Sikorsky, who worked as an apprentice mechanic on “that sweet little ship,” the VS-300 aircraft. “By the late 1930s, my father wanted to prove that after two aviation careers in Russia before and during World War 1, and in the United States building transoceanic flying boats before the Second World War that he could design and build a helicopter without knowing how it should be done, and then to try to fly one never having flown one before. That was a challenge many said couldn’t be done.”

In 1938, Igor made a compelling argument to United Aircraft, now United Technologies Corp. The board of directors gave Igor and his team $30,000 to test his single rotor helicopter theory.

“Igor settled on a single rotor configuration for its design simplicity, and to enable the optimum placement of major components that would allow precise control of hovering take-offs and landings, and quick conversion to horizontal flight,” said Mark Miller, Sikorsky Vice President of Research & Engineering.

“Igor was not the first to conceive a vertical lift rotorcraft, nor did he develop any complex new technologies to ensure success. It was the genius of his design, integrating mature technologies in an innovative way, which enabled efficient vertical lift flight. Three generations later, we at Sikorsky are following a similar design approach with our next-generation X2® co-axial helicopter program.”

The 1,325-pound (601 kg) max. gross weight VS-300 helicopter consisted of a welded steel tube frame with an undercarriage of three wheels. A 75-horsepower engine, transmission belts and gears drove the three-blade main rotor and single-blade counterbalanced wooden tail rotor. In flight, the main rotor turned at approximately 255 RPM.  

On September 14, 1939, outside the Stratford, Connecticut, factory, Igor sat in the open VS-300 cockpit wearing his trademark overcoat and fedora, the engine vibrating the aircraft. He pulled up on the collective control lever at his left side. The VS-300 cleared the ground for a few seconds to the height of its short tether ropes. Many more such ‘hops’ over the ensuing days and weeks proved the aircraft could be controlled. Sikorsky and other pilots then flew different variations of the VS-300 aircraft for a total of 102 hours and 35 minutes into 1943.

Reflecting on his achievement years later, Igor Sikorsky said, “If a man is in need of rescue, an airplane can come and throw flowers on him. But a direct lift aircraft could come in and save his life.”