Trieste II (DSV 1)

Trieste II (DSV 1) was the first deep submergence vehicle (DSV) built by the U.S. Navy and the successor to the original Trieste bathyscaphe. Trieste II performed undersea research and tasks, including examining the remains of USS Scorpion in 1969. Information...

DSRV Mystic

Deep submergence rescue vehicle (DSRV) Mystic provided rapid-response submarine rescue capability to the U.S. Navy from 1970 to 2008. In the event of a submarine accident, Mystic or her sister submersible Avalon could be deployed rescue survivors anywhere in the...

Sealion II (SS 315) Battle Flag

Submarine battle flags emerged during World War II as a way of marking the number of enemy ships a submarine sank. The designs and symbols used in these unofficial records varied, as each battle flag was individually sewn by the crew of a particular submarine. Most...

USS Sturgeon (SSN 637) Sail

Sturgeon-class submarines were the workhorses of the Submarine Force during the Cold War. These fast attack submarines conducted surveillance and reconnaissance (intelligence gathering) missions, took part in battle and strike group operations, and provided precision...