In 1923 he founded the Sikorsky Aircraft Corporation. He designed the first "flying boat" for Pan American Airways.
He developed the present-day rotor configuration which is used by most helicopters and started production of helicopters in the 1940s.
Mr. Sikorsky was a devout Christian and wrote two books based on his views, The Message of the Lord's Prayer and The Invisible Encounter.
He died in 1972 at age 83.
Igor Sikorsky 1889 – 1972 RIP