Ilyushin Il-76
Military versions of the Il-76 have been widely used in Europe, Asia and Africa, including use as an aerial refueling tanker and command center.The aircraft was conceived by Ilyushin in 1967 to meet a requirement for a freighter able to carry a payload of 40 tonnes (88,000 lb) over a range of 5,000 kilometres (2,700 nmi; 3,100 mi) in less than six hours, able to operate from short[vague] and unprepared airstrips, and capable of coping with the worst weather conditions likely to be experienced in Siberia and the Soviet Union's Arctic regions.[citation needed] From 2004 onwards, a number of aircraft in commercial service were modernized to the Il-76TD-90VD version; this involved the adoption of the newly developed PS-90 engine to comply with European noise limitations.[citation needed] In June 2013, Russian military export agency Rosoboronexport announced an order by China for 12 Il-76MD aircraft.[4] Another application for the type was found in Antarctic support flights and for conducting simulated weightlessness training for cosmonauts (akin to the "Vomit Comet" used by NASA).[7] Beriev and NPO Almaz also developed an airborne laser flying laboratory designated A-60, of which two were built, much of this project's details remaining classified.Il-76s were often hit by shoulder-launched Stinger and Strela heat-seeking missiles and large-calibre machine gun fire, but because the strong airframes were able to take substantial damage and remain operational, the aircraft had a remarkably low attrition rate during this period of conflict.