Oleg Konstantinovich Antonov (Ukrainian: Оле́г Костянти́нович Анто́нов, Russian: Оле́г Константи́нович Анто́нов; 7 February 1906 – 4 April 1984) was a prominent Soviet aircraft designer, and the first chief of the Antonov - a world-famous aircraft company in Russia and Ukraine, later named in his honour.Antonov was personally responsible for designing a number of very successful Soviet airplanes (such as the Antonov An-12) and gliders for both civilian and military use.