1950 ., 30 h.g, aeroflot, air, air force, and, ar- 2, arms, art, attack, biplane, bob, bomber, clouds, construction polikarpov, cou, design bureau, developed by, diving, fight, fighter, fighters, first, flame, gurevich, heinkel, i- 153, i- 190, i-15, il- 2, infantry, instant, japanese, khalkhin gol, ki-27, magnum, middle, mig- 15, mig- 21, mig- 21mf, mig-15, mig-21mf, mikoyan, more, multi-purpose, name, non- 51 ., passenger, picture, plane, polutoraplan, red army, samoleom, single, single-engined, sky, smoke, soviet, soviet soldiers, soviet union, supersonic, tb-3, than, the, the army, the great patriotic war, town, triangular, tupolev, twin-engine, was, was the, was used, wing, ww2., yak -9k, yak- 12a, yakovlev