Soyuz 7K-T No.39
Space mission
>
Soyuz 7K-T No.39, was an unsuccessful launch of a crewed Soyuz spacecraft by the Soviet Union in 1975. The mission was expected to dock with the orbiting Salyut 4 space station, but due to a failure of the Soyuz launch vehicle the crew failed to... Wikipedia
Date: April 5, 1975
Landing mass: 1200 kg
Launch date: 5 April 1975, 11:04:54 UTC
Mission duration: 21 minutes 27 seconds; 60 days (planned)
Names: Soyuz 18a, Soyuz 18-1, April 5th Anomaly
Rocket: Soyuz
Location: Baikonur Cosmodrome and Altai Mountains