In the late 1980s, the Antonov Bureau achieved global prominence after the introduction of its extra large aeroplanes. The An-124 "Ruslan" (1982) became the Soviet Union's mass-produced strategic airlifter under the leadership of Chief Designer Viktor Tolmachev. The Bureau enlarged the "Ruslan" design even more for the Soviet spaceplane programme logistics, creating the An-225 "Mriya" in 1989. "Mriya" is still the world's largest and heaviest aeroplane.