 the soyuz 40 mission was a 1981 soviet manned spaceflight and the final flight of the soyuz 7k-t spacecraft. it was a collaboration between the soviet union and romania.the mission report is available here: http://www.spacefacts.de/mission/english/soyuz-40.htm ==crew==  ===backup crew===  ==mission parameters== *mass: 6800&nbsp;kg *perigee: 198.1&nbsp;km *apogee: 287&nbsp;km *inclination: 51.6Â° *period: 89.06 minutes ==mission highlights== soyuz 40 was the 16th expedition to salyut 6 and carried the ninth international crew
1981_in_the_Soviet_Union Interkosmos_program Manned_Soyuz_missions RomaniaaSoviet_Union_relations Spacecraft_launched_in_1981 Spacecraft_which_reentered_in_1981