The passenger aircraft An-24 was designed in 1959. The military cargo modification An-24T was designed on its base. During 1967-1971, 154 aircraft of this type were built in Irkutsk. In 1964 the designers presented the project of the new modification - An-26 that differed from the previous one with the new construction of the nose and tail end. The mass production started in 1970 at Kyiv aviation plant. In total 1398 aircraft of this type were built.