What did Vladimir Chelomei’s bureau champion as an alternative to the OKB-1 concept?
Answer
A design relying on a different, less powerful heavy-lift rocket
The rivalry between Soviet design bureaus led to parallel development paths for key components of the lunar mission. While Sergei Korolev's OKB-1 championed one primary concept for the lunar vehicle and heavy-lift system, Vladimir Chelomei’s bureau actively promoted an alternative design. This alternative strategy was specifically characterized by its reliance upon a heavy-lift rocket that was inherently less powerful than the one championed by Korolev's organization, thus forcing a division of focus and resources into two distinct, often incompatible, technological avenues.

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