Launch from the Baikonur Cosmodrome; landing
with
Soyuz 37 capsule 140 km southeast
of Dzheskasgan.
Following a one day solo flight the Soyuz docked with
Salyut 6 on 10.04.1980. The cosmonauts became the
fourth resident
crew.
Ryumin was not originally planned for this mission, but
Valentin
Lebedev was injured on his knee before launch and had to be
replaced by
Ryumin.
Docking of Soyuz 35 on 26.05.1980, of the new
developed spacecraft
Soyuz T-2 on
05.06.1989,
Soyuz 37 on 24.07.1980 and
Soyuz 38 on 19.09.1980. Supplies were
brought with cargo spacecrafts Progress 8 - 11. The space station was in good,
but not in perfect shape, when the crew arrived. Two viewports in the transfer
compartment had lost their transparency.
The cosmonauts had a rather
busy time onboard the station. They replaced components of the attitude control
system and life support system, installed a new caution and warning system,
synchronised the station's clocks with those in the
TsUP,
added an 80-kg storage battery, and replaced air from tanks in Progress 8.
Several scientific experiments were performed as biological cultivation
tests, photography of Earth surface, materials science Kristall or Splav-01
materials processing furnaces.
The crew set a new spaceflight record.
