Sergei I. Sikorsky, the son of helicopter pioneer Igor who would go on to forge his own distinguished lifelong career in aviation, has died at the age of 100. Sergei was born in New York City in 1925, but grew up in Connecticut, where he watched his father build his famous flying boats. Sergei took his first flight at the age of eight (in the copilot seat of a twin-engine S-38 amphibian) and then watched his father develop the first successful Sikorsky helicopter, the VS-300. During the Second World War, Sergei joined the U.S. Coast Guard, where he was assigned to the Helicopter Development Unit at Floyd Bennett Field, Brooklyn. “Sergei will be greatly missed.”In 2019, Sikorsky renamed its military hangar in Stratford the Sergei I. Sikorsky Flight Center in honor of Sergei’s many achievements.