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Soyuz 6

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Title: Soyuz 6  
Author: World Heritage Encyclopedia
Language: English
Subject: Soyuz 7, Soyuz 8, Soyuz 5, Soyuz 4, Georgy Shonin
Collection: 1969 in the Soviet Union, Manned Soyuz Missions, Spacecraft Launched in 1969, Spacecraft Which Reentered in 1969
Publisher: World Heritage Encyclopedia

Soyuz 6

Soyuz 6
Mission type Test flight
Operator Soviet space program
Mission duration 4 days, 22 hours, 42 minutes, 47 seconds
Orbits completed 80
Spacecraft properties
Spacecraft type Soyuz 7K-OK
Manufacturer Experimental Design Bureau OKB-1
Launch mass 6,577 kilograms (14,500 lb)
Crew size 2
Members Georgi Shonin
Valeri Kubasov
Callsign Антей (Antey - "Antaeus")
Start of mission
Launch date 11 October 1969, 11:10:00 (1969-10-11T11:10Z) UTC
Rocket Soyuz
Launch site Baikonur 31/6[1]
End of mission
Landing date Did not recognize date. Try slightly modifying the date in the first parameter. UTC
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 212 kilometers (132 mi)
Apogee 218 kilometers (135 mi)
Inclination 51.6 degrees
Period 88.8 minutes

Soyuz programme
(Manned missions)
← Soyuz 5 Soyuz 7

Soyuz 6 (Valeri Kubasov were meant to take high-quality movie photography of the Soyuz 7 and Soyuz 8 docking, but the rendezvous systems on all three spacecraft failed.

It is still not known exactly what the actual problem was, but it is often quoted as being a helium pressurization integrity test.[2] The version of Soyuz 7K-OK spacecraft used for the missions carried a torus-shaped docking electronics equipment housing surrounding the motor assembly on the back of the service module, which is thought to have been pressurised with helium to provide a benign environment for the electronics. It was then jettisoned after docking to lower the mass of the spacecraft for reentry. Due to unstable temperature, disparity between the frequencies of the transmitters and receivers, which were stabilized by special quartz resonators, occurred. The piezocrystals were supposed to be in thermostats at a strictly constant temperature.[3]

The crew was made up of Shonin and Kubasov, who carried out experiments in space welding. They tested three methods: using an electron beam, a low-pressure plasma arc and a consumable electrode. While welding, Kubasov almost burned through the hull of the vehicle's Living Compartment, which in the absence of spacesuits could have resulted in a catastrophic situation.[3] The apparatus was designed at the E. O. Paton Electric Welding Institute, Kiev, Ukraine. The weld quality was said to be in no way inferior to that of Earth-based welds.[2]

After eighty orbits of the Earth, they landed on 16 October 1969, 180 km (110 mi) northwest of Karaganda, Kazakhstan.

The radio call sign of the spacecraft was Antey, referring to the Greek hero Antaeus, but at the time of the flight, however, it was also the name of the largest practicable aircraft, the Soviet Antonov 22, made in Ukraine. But unlike the call signs of Soyuz 7 and Soyuz 8, it was not the name of a squadron in Soviet military training, of uncertain role, for the one that begins with the letter 'a' is Aktif, meaning "active".


  • Crew 1
    • Backup crew 1.1
    • Reserve crew 1.2
  • References 2
  • External links 3


Position Cosmonaut
Commander Georgi Shonin
First spaceflight
Flight Engineer Valeri Kubasov
First spaceflight

Backup crew

Position Cosmonaut
Commander Vladimir Shatalov
Flight Engineer Aleksei Yeliseyev

Reserve crew

Position Cosmonaut
Commander Andriyan Nikolayev
Flight Engineer Georgi Grechko


  1. ^ "Baikonur LC31". Encyclopedia Astronautica. Retrieved 2009-03-04. 
  2. ^ a b M. Sharpe, Space: The Ultimate Frontier
  3. ^ a b B. Chertok, Rockets and People, Vol. IV

External links

  • Astronautix
  • Svengrahn
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