Igor Sikorsky

Igor Ivanovich Sikorsky (25 May 1889 – 26 October 1972)[1] (Russian: Игорь Иванович Сикорский) was a Russian-American pioneer of aviation who designed and flew the world's first multi-engine fixed-wing aircraft, developed the first of Pan American Airways' ocean-conquering flying boats in the 1930s, and spearheaded the development of helicopters using the most common configuration (single main rotor with vertical tail rotor).[2][1] Although Igor Sikorsky ranks just short of the Wright brothers themselves as an aviation pioneer, he is best remembered as the first person to achieve volume helicopter production, a milestone his company accomplished in World War II.