page_title: R-27 Zyb
section_title: Operators
hierarchical_section_title: R-27 Zyb / Operators
caption_attribution_description: English: Map with R-27 Zyb operators in blue with former operators in red
context_page_description: The R-27 Zyb was a submarine-launched ballistic missile developed by the Soviet Union and employed by the Soviet Navy from 1968 through 1988. NATO assigned the missile the reporting name SS-N-6 Serb. In the USSR, it was given the GRAU index 4K10. It was a liquid fuel rocket using a hypergolic combination of unsymmetrical dimethylhydrazine as fuel, and nitrogen tetroxide as oxidizer. Between 1974 and 1990, 161 missile launches were conducted, with an average success rate of 93%. Total production was 1800 missiles.
  The R-27 missiles were deployed on the Yankee I submarines, including the K-219.
context_section_description:  Soviet Union
  The Soviet Navy was the only operator of the R-27.
caption: Map with R-27 Zyb operators in blue with former operators in red
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