)_cancelled.jpg) Georgy Shonin and Valeri Kubasov on 1969 commemorative stamp of Soviet Union | |
| Mission type | Test flight |
|---|---|
| Operator | Soviet space program |
| COSPAR ID | 1969-085A |
| SATCATno. | 04122 |
| Mission duration | 4 days 22 hours 42 minutes 47 seconds |
| Orbits completed | 80 |
| Spacecraft properties | |
| Spacecraft | Soyuz 7K-OK No.14[1] |
| Spacecraft type | Soyuz 7K-OK (passive - photographer) |
| Manufacturer | Experimental Design Bureau (OKB-1) |
| Launch mass | 6577 kg[2] |
| Landing mass | 1200 kg |
| Crew | |
| Crew size | 2 |
| Members | Georgy Shonin Valeri Kubasov |
| Callsign | Антей (Antey - "Antaeus") |
| Start of mission | |
| Launch date | 11 October 1969, 11:10:00GMT[3] |
| Rocket | Soyuz |
| Launch site | Baikonur,Site 31/6[4] |
| End of mission | |
| Landing date | 16 October 1969, 09:52:47 GMT |
| Landing site | 180 km at northwest ofKaraganda,Kazakhstan |
| Orbital parameters | |
| Reference system | Geocentric orbit[5] |
| Regime | Low Earth orbit |
| Perigee altitude | 192.0 km |
| Apogee altitude | 231.0 km |
| Inclination | 51.68° |
| Period | 88.67minutes |
Soyuz 6 (Russian:Союз 6,Union 6) was part of a joint October, 1969, mission withSoyuz 7 andSoyuz 8 that saw the threeSoyuz spacecraft in orbit together at the same time, carrying a total of sevencosmonauts. The crew ofGeorgy Shonin andValeri Kubasov were meant to take high-quality movie photography of theSoyuz 7 andSoyuz 8 docking, but therendezvous systems on all three spacecraft failed.
It is still not known exactly what the actual problem was, but it is often quoted as being ahelium pressurisation integrity test.[6] The version ofSoyuz 7K-OK spacecraft used for the missions carried atorus-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 an inert 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 stabilised by specialquartz resonators, occurred. The piezocrystals were supposed to be inthermostats at a strictly constanttemperature.[7]
The crew was made up of Shonin and Kubasov, who carried out experiments inspace welding. They tested three methods: using anelectron beam, a low-pressureplasma arc and a consumableelectrode. 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.[7] The apparatus was designed at thePaton Institute of Electric Welding,Kyiv,Ukraine. The weld quality was said to be in no way inferior to that of Earth-based welds.[6]
After eighty orbits of the Earth, they landed on 16 October 1969, 180 km (110 mi) northwest ofKaraganda,Kazakhstan.
The radio call sign of the spacecraft wasAntey, referring to the Greek heroAntaeus, but at the time of the flight, however, it was also the name of the largest practicable aircraft, the SovietAntonov An-22, made inUkraine. But unlike the call signs ofSoyuz 7 andSoyuz 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' isAktif, meaning "active".
| Position | Cosmonaut | |
|---|---|---|
| Commander | Georgy Shonin Only spaceflight | |
| Flight engineer | Valeri Kubasov First spaceflight | |
| Position | Cosmonaut | |
|---|---|---|
| Commander | Vladimir Shatalov | |
| Flight engineer | Aleksei Yeliseyev | |
| Position | Cosmonaut | |
|---|---|---|
| Commander | Andriyan Nikolayev | |
| Flight engineer | Georgy Grechko | |
The mission objectives included:[2]
Stable two-way radio communications was maintained between the spaceships and the ground stations, and TV coverage was broadcast from the ships during flight. The most significant objective was testing alternate methods for welding using remote handling equipment in the high vacuum and weightless conditions of outer space. In Soyuz 6, the welding unit had the name Vulcan and was controlled remotely by electric cable. Of the three types of welding tried (low pressure compressed arc, electron beam, and arc with a consumable electrode), electron beam was the most successful. Soyuz 6 also performed group flight with Soyuz 7 and Soyuz 8, but it did not dock with either spacecraft.[2]
This article incorporates text from this source, which is in thepublic domain. This article incorporates text from this source, which is in thepublic domain.| Launch vehicles and ascent/upper stages |  | |
|---|---|---|
| Spacecraft | ||
| Other hardware | ||
| Soyuzdocking tests | ||
| Zond (7K-L1/L1S) lunar flyby missions | ||
| LOK (7K-LOK/L1E) test missions | ||
| LK Lander (T2K) test missions | ||
The † sign designates failed missions.Italics designates cancelled missions. | ||
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| Past missions (by spacecraft type) |
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Uncrewed missions are designated asKosmos instead ofSoyuz; exceptions are noted "(uncrewed)". The † sign designates failed missions.Italics designates cancelled missions. | |||||||||||||||||||||||||||
