About this Unit
NAVFAC Ramey AFB, Puerto Rico, was a United States Navy facility established in 1957 as part of the Sound Surveillance System (SOSUS) network during the Cold War. Its primary mission was to monitor and track Soviet submarine activity in the Atlantic Ocean using undersea listening technology. Operated by Navy personnel, the facility worked in close coordination with the nearby Ramey Air Force Base, enhancing U.S. anti-submarine warfare capabilities in the Caribbean region. NAVFAC Ramey remained operational until its decommissioning in 1976, after which its functions were consolidated with other SOSUS sites.
Historical Facts
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Strategic Early Warning: NAVFAC Ramey AFB (Naval Facility Ramey, Puerto Rico) was part of the Sound Surveillance System (SOSUS), a network of underwater listening posts established during the Cold War to detect and track Soviet submarines.
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Commissioned in 1958: The facility officially began operations on December 18, 1958, enhancing the United States' anti-submarine warfare capabilities in the Atlantic.
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Secret Mission: For much of its operational life, the true mission of NAVFAC Ramey was classified; it was referred to as an "oceanographic research" facility to conceal its real purpose.
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Geostrategic Location: Located at the northwest tip of Puerto Rico, NAVFAC Ramey provided optimal coverage of the entrances to the Caribbean Sea and the Atlantic approaches to the Panama Canal.
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Close Ties with Ramey AFB: The facility was housed on the grounds of Ramey Air Force Base, sharing infrastructure and support with the Strategic Air Command base there.
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Technological Innovation: NAVFAC Ramey used advanced hydrophone arrays connected by underwater cables to the shore station, where signals were analyzed for submarine detection.
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Role in Crisis: During the Cuban Missile Crisis (1962), NAVFAC Ramey played a key role in monitoring Soviet naval activity in the region, providing early warning and intelligence.
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Women in Uniform: The facility was one of the first in the region to host women in uniform, including WAVES (Women Accepted for Volunteer Emergency Service) who worked as sonar technicians and analysts.
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Decommissioning: NAVFAC Ramey was decommissioned on September 30, 1976, as technological advancements and changes in strategic needs rendered it less critical.
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Legacy: The site's personnel, traditions, and technical expertise contributed to the evolution of undersea surveillance, and veterans of NAVFAC Ramey remain active in sharing their history and preserving its legacy.
