zenit

  1. No Energia-Buran - whither the Soviet space program?

    From what I can tell, the Energia-Buran program that the USSR pursued from the mid 70s to 1989 was, while somewhat cheaper than the STS development program, still hugely expensive and produced a system that didn't really fit any need that the USSR would actually face in the 80s or (had the...

  2. The Zenit gets NK-33s instead of RD-171s

    According to RussianSpaceWeb.com: "However, the developers of the super-powerful engine of the first stage for Zenit run into considerable trouble. Between 1981 and 1983, the problems plagued the test firings of the RD-171 engine. One of solution proposed at the time called for the use of...
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