Question: The Sikorsky S-1 was the first fixed wing aircraft design by Igor Ivanovich Sikorsky, a Russian-American aviation pioneer in both helicopters and fixed-wing aircraft, first success came with which aircraft?
Sentence (from "Sikorsky S-1"): In February 1910 work began on the pusher configured biplane powered by a 15 hp Anzani three-cylinder, air-cooled engine.
Relevant evidence: No