Progress 29Progress 29 was a Soviet uncrewed Progress cargo spacecraft, which was launched in April 1987 to resupply the Mir space station.LaunchProgress 29 launched on 21 April 1987 from the Baikonur Cosmodrome in the Kazakh SSR. It used a Soyuz-U2 rocket.DockingProgress 29 docked with the aft port of the Kvant-1 module of Mir on 21 April 1987 at 15:14:17 UTC, and was undocked on 11 May 1987 at 03:10:01 UTC.DecayIt remained in orbit until 11 May 1987, when it was deorbited. The deorbit burn occurred at 07:51:16 UTC and the mission ended at 08:28 UTC.