Soyuz-V

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This article is about the proposed fuel tanker. For the mission, see Soyuz 5.
Soyuz-V
Soyuz-A-B-C circumlunar complex drawing.png
Soyuz 11K (left) docked with Soyuz 9K and Soyuz 7K
Manufacturer OKB-1
Country of origin  Soviet Union
Applications Fuel tanker
Specifications
Regime Low Earth
Production
Status Cancelled
Launched None

Soyuz-V (Russian: Союз-В meaning Union-V) or Soyuz 11K (Russian: Союз 11К), sometimes known in the west as Soyuz-C, was a proposed Soviet spacecraft, which was designed for use as a fuel tanker. It would have been used to refuel other spacecraft, particularly the Soyuz 9K orbital tug. It was part of the Soyuz A-B-V complex for manned circumlunar spaceflight.

The Soyuz 11K was intended to have been launched into low Earth orbit by the Soyuz 11A511 carrier rocket. Following launch, it would have docked with the NO docking module of a waiting Soyuz 9K, and transferred over 7,000 kilograms (15,000 lb) of fuel into the tug. Up to three Soyuz 11K tankers would have been launched per Soyuz 9K, each one carrying either propellant or oxidiser. The Soyuz 9K would then have been used to boost a manned Soyuz 7K or Soyuz 7K-P spacecraft into a higher orbit; the Soyuz 7K onto a circumlunar trajectory for manned Lunar exploration, and the Soyuz 7K-P into a higher orbit to intercept and destroy another spacecraft. The Soyuz 11K, along with the NO module of the Soyuz 9K, would have been jettisoned before the Soyuz 9K performed its burn.

Following the cancellation of both the Soyuz 7K and Soyuz 7K-P programmes; the former in favour of the LK-1 spacecraft, and the latter in favour of unmanned antisatellite programmes, the Soyuz 9K and Soyuz 11K were no longer required, and they too were cancelled.

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