The largest is currently the world's aircraft An-225 Mriya (Dream) was created to meet the needs of the Soviet space program in terms of transportation of bulky cargo. In the middle of 1989. Antonov Design Bureau was requested to design a new aircraft that could carry the spaceship "Buran", major components of the carrier rocket "Energy" and very large equipment for the oil, construction and mining industries. the basis for the design of new aircraft served as the An-124 using a plurality of identical components and assemblies to reduce the cost and accelerate the creation of a new aircraft.
The fuselage and wings of the aircraft An-225 is a modified similar units AN-124. In the fuselage, for example, keep the size of the cross-section, but the increased length; to reduce weight was liquidated rear cargo hatch with its loading devices, but the bow part remained the same; It adds a new wing center section, and has increased its scope.