[KIEV] Ukraine said on Wednesday it may deliver the world's largest jet - originally developed for the Soviet Union's abandoned space shuttle programme - to China within the next five years.
The first AN-225 Mriya (Dream) six-engine heavy lifter was built by the Soviet Union's Antonov aircraft maker in the 1980s.
The Antonov company moved from Russian Siberia to Kiev in 1952 and fell into Ukraine's lap when the Soviet Union fell apart in 1991.
Antonov and the Aviation Industry Corporation of China signed an memorandum of understanding on August 30 to renew the cargo jet's production in China under licence from Ukraine.
Only one functioning Mriya exists, while a second was only partially completed and has remained in Ukrainian storage for the past 28 years.
Antonov's China project coordinator Gennadiy Gabruk said the second plane would be fully upgraded and "under optimal conditions" would be delivered to China by 2021.
"This jet will be built using the basis of the basic framework we already have, but all the equipment will be new," Gabruk told reporters.
The memorandum of understanding foresees mass production of the Mriya by China under Antonov's licence if all the technical details are resolved.
China reportedly conducted covert work on its own shuttle programme before dropping the idea in the 1990s.
But the booming nation is keen to join the international space race and is reportedly considering a permanently manned moon base.
Such a project would need a vessel to shuttle people to and from Earth.
The Soviet Union developed the Mriya to transport shuttles that could compete against those being used by the United States.
Moscow conducted a successful test flight of an unmanned Buran orbiter from its Baikonur space centre in present-day Kazakhstan in 1988. Mriya was able to ferry the Buran fixed on top of the plane.
But a second flight planned for the early 1990s had to be scrapped because of the Soviet Union's disintegration and Russia's subsequent deep economic malaise.
China has not officially said what use it has for the Mriya.
Some military experts believe that Beijing does not intend to employ the craft in a space programme but rather to use it as a heavy lifter for domestic and international projects.