SOKS

SOKS, or Systemа Obnarujenia Kilvaternogo Sleda (

radionuclides from the nuclear reactor in submarines, chemical signatures, and changes in the refractive index of water in the wake of submarines. It was first installed on the November-class K-14 submarine

in 1969.

SOKS was revealed in a 1972 document written by the Central Intelligence Agency Directorate of Science & Technology and declassified in June 2017.^[1]^[2]

References

^ "Intelligence Report: Soviet Antisubmarine Warfare: Current Capabilities and Priorities" (PDF). cia.gov. September 1972. Retrieved 2021-01-10.
^ "How the Soviet Union Snooped Waters for Enemy Subs—Without Sonar". popularmechanics.com. 23 October 2017. Retrieved 2018-01-04. CIA's Directorate of Science & Technology

[cia-1] "Intelligence Report: Soviet Antisubmarine Warfare: Current Capabilities and Priorities" (PDF). cia.gov. September 1972. Retrieved 2021-01-10.

[popu_Howt-2] "How the Soviet Union Snooped Waters for Enemy Subs—Without Sonar". popularmechanics.com. 23 October 2017. Retrieved 2018-01-04. CIA's Directorate of Science & Technology

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[2]