Launch from Baikonur; landing with
Soyuz 37-capsule 140 km southeast of
Dzheskasgan.
Docking on Salyut 6;
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 new
developed spacecraft
Soyuz T-2 on
05.06.1989,
Soyuz 37 on 24.07.1980 and
Soyuz 38 on 19.09.1980; supplies with
cargo spacecrafts Progress 8 - 11. The spacestation 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.
