Young Sikorsky’s most successful design was for a large, four-engine plane that he named Ilya Muromets, after a legendary Russian folk hero. He completed it in 1913. Czar Nicolas II, who personally inspected the craft, presented Sikorsky with a diamond-studded gold watch for his efforts., First success came with the S-2, the second fixed-wing plane of his design and construction. His fifth airplane, the S-5, won him national recogni-tion as well as F.A.I. license Number 64., His first successful aircraft was the S-2, which was the second fixed-wing plane of his design and construction. His fifth airplane, the S-5, won him national recognition as well as F.A.I. license Number 64. His S-6-A received the highest award at the 1912 Moscow Aviation Exhibition., The Sikorsky Russky Vityaz ("Русский витязь" in Russian, or Russian Knight), also called Le Grand, was the first four-engine aircraft in the world, designed and built by Igor Sikorsky in Russia in the spring of 1913., The S-6B demonstrated a speed of 113km/h while carrying three persons, climbed to 1500m in 15 minutes and had an endurance of more than 1.5 hours. It won the competition and established the twenty-three-year-old designer in his professional career., Igor Ivanovich Sikorsky[a][b] (25 May 1889 – 26 October 1972) was a Russian-American [c] aviation pioneer in both helicopters and fixed-wing aircraft. His first success came with the Sikorsky S-2, the second aircraft of his design and construction..