USNS Chauvenet Oceanographic Unit 4

The USNS Chauvenet Oceanographic Unit 4 was a specialized detachment associated with the USNS Chauvenet (T-AGS-29), a hydrographic survey ship operated by the United States Navy. Activated during the 1970s and 1980s, Oceanographic Unit 4 was responsible for conducting detailed oceanographic and hydrographic surveys in support of naval operations and strategic planning. The unit’s skilled personnel utilized advanced sonar and mapping equipment to chart sea floors, gather oceanographic data, and support submarine navigation. Their work contributed to safer naval passage and enhanced the Navy’s understanding of undersea environments during the Cold War era.