Soyuz 29

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Soyuz 29
Mission statistics
Mission name Soyuz 29
Spacecraft mass 6800 kg
Crew size 2
Call sign Photon
Launch pad Gagarin's Start
Launch date June 15, 1978 20:16:45 UTC
Landing September 3, 1978 11:40:34 UTC
46° N, 69° E
Mission duration 79d/15:23:49
Apogee 266 km
Perigee 197.8 km
Orbital period 88.86 minutes
Orbital inclination 51.65°
Related missions
Previous mission Next mission
Soyuz 28 Soyuz 30

[edit] Crew

Number in parentheses indicates number of spaceflights by each individual prior to and including this mission.

Launched:

Landed:

[edit] Backup crew

[edit] Mission parameters

  • Mass: 6800 kg
  • Perigee: 197.8 km
  • Apogee: 266 km
  • Inclination: 51.65°
  • Period: 88.86 minutes
Soyuz 29 capsule
Soyuz 29 capsule

Soyuz 29 was a Soviet space mission to the Salyut 6 space station. The Commander was Vladimir Kovalyonok, and the flight engineer was Aleksandr Ivanchenkov. Vladimir Lyakhov and Valery Ryumin served as their backup crew. They were the second long-duration crew of Salyut 6.

Upon arriving at Salyut 6, Kovalyonok and Ivanchenkov switched on the station’s air regenerators and thermal regulation system, and activated the water recycling system to reprocess water left aboard by the Tamyrs. De-mothballing Salyut 6 occurred simultaneously with the crew’s adaptation to weightlessness, and required about one week. On June 19 Salyut 6 was in a 368 km by 338 km orbit. Onboard temperature was 20 °C, and air pressure was 750 mmHg (100 kPa). Soon after this, Kovalyonok and Ivanchenkov performed maintenance on the station’s airlock, installed equipment they brought with them in Soyuz 29’s orbital module, and tested the station’s Kaskad orientation system. The station operated in gravity-gradient stabilized mode June 24–June 26 to avoid attitude control system engine firings which could cause interference with a 3-day smelting experiment using the Splav-01 furnace. The previous crew installed the furnace in the intermediate compartment so it could operate in vacuum.

During their stay on board of Salyut 6 two visiting crews docked with the station. The second one exchanged the Soyuz spacecraft, allowing the crew to stay in space longer than the designated lifetime of the spacecraft. They landed with the Soyuz 31 spacecraft on November 2, 1978.

The Soyuz 29 spacecraft landed with the visiting crew which launched with Soyuz 31: Valery Bykovsky and Sigmund Jähn, the first German cosmonaut.

The capsule is on display in the Deutsches Museum in Munich, Germany, on loan from the Militärhistorisches Museum in Dresden, Germany.

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Unmanned