Submarine Rescue Chamber

The submarine rescue chamber (SRC) was developed in the early 1930s to rescue submariners from downed submarines. One was famously used in May 1939 to save 33 men trapped in sunken USS Squalus (SS-192). The Navy continues to own and operate SRCs today because their...

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

In the event of a submarine accident, one of the Navy’s two deep submergence rescue vehicles (DSRVs) could be deployed to rescue survivors anywhere in the world. DSRVs Mystic and Avalon provided rapid-response submarine rescue capability to the U.S. Navy from 1977 to...

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...