Launch from the Baikonur Cosmodrome; landing
56 km east of Arkalyk.
The crew was originally for backup crew for
Soyuz 18A
crew, but that launch failed. Following a one day solo flight the Soyuz docked
with Salyut 4 on 25.05.1975. The cosmonauts became the
2nd crew of
spacestation Salyut 4. They stayed 62 days onboard. For that reason the
focus of the mission research into long-term stays in space, with the crew
performing various biomedical experiments (includig intensive physically
exercise) and growing plants in orbit. They also made solar observations and
took photos of the Earths surface.
The crew remained aloft aboard the
station during the
ASTP joint
flight.