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When we left the Soviet Union they had somewhat successfully landed a probe on Venus and they had completed the automatic docking of two Soyuz 7K-OK spacecrafts. However they did not reach their goal of a circumlunar flight in time for the 50th anniversary of the glorious revolution.
L1 – Zond
Mishin, Agadzhanov, & Chertok
7K-L1 spacecraft on Proton booster
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Chief Designer Mishin proposed a two-launch “stopover” scenario for the piloted flight to the moon. This was similar to one of NASA’s earth orbit rendezvous modes to reach the moon. The gist of the plan was, the UR-500K would insert the 7K-L1 into orbit with no crew. Then the R7 derivative Semyorka would launch the 7K-OK carrying two cosmonauts. If everything went well on the two vehicles, they would dock, and the cosmonauts would transfer from the 7K-OK to the 7K-L1 via spacewalk. Then they would set out for the Moon, and, after flying around it, they would return to Earth.
Vladimir Chelomey Responsible for the Proton Rocket
Proton and 7K-L1 Launch Vehicle
Soyuz Test Flight 3, Orbit 5
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The first Soyuz test flight was a catastrophic failure. Due to negligence, the attitude control system malfunctioned and used all of its fuel before a rendezvous could be attempted or even the second Soyuz rocket could be launched. When the Soviets attempted to return the first Soyuz to earth, the vehicle’s self-destruct system activated because it was unable to make a landing in the Soviet Union. OKB-1 was disgraced.
Soyuz Interior
R7 Derivatives
Kerimov
Ustinov
By Dave
