Original sentence: After World War I, Igor Sikorsky briefly became an engineer for the French forces in Russia during the Russian Civil War.He was also the test pilot for its first flight, on 13 May 1913.He was decorated with the Order of St.In 1914, he was awarded an honorary degree in engineering from Saint Petersburg Polytechnical Institute.Other early work included the construction, as chief engineer, of the first four-engine aircraft, the Russky Vityaz, which he called Le Grand.Sikorsky's planes were used by Russia as bombers in World War I — for example, the Ilya Muromets, the world's first four-engined bomber
Edited sentence: After World War I, Igor Sikorsky briefly became an engineer for the French forces in Russia, during the Russian Civil War.He also served as the test pilot for the first flight on 13 May 1913.His work at R-BVZ included the construction the first four-engine aircraft, the S-21 Russky Vityaz, which he called Le Grand.In recognition for his accomplishement, he was awarded an honorary degree in engineering from Saint Petersburg Polytechnical Institute in 1914.Sikorsky took the experience from building the Russky Vityaz to develop the world's first four-engined bomber, the S-22 Ilya Muromets, for which he was decorated with the Order of St