On 3rd May 1923 Igor Sikorsky established Sikorsky Aero Engineering Corporation. It was the first enterprise in the world to produce helicopters (it used to produce aircrafts as well). The most famous helicopters produced by Sikorsky were: Sikorsky R-4, Sikorsky SH-3 Sea King, Sikorsky CH-54 Tarhe, Sikorsky UH-60 Black Hawk, and Sikorsky SH-60 Seahawk.
