Mystic-class deep-submergence rescue vehicle

The DSRV also has an arm to clear hatches on a disabled submarine and a combined gripper and cable cutter.

The Deep Submergence System Project was established in June 1965 in the aftermath of the loss of USS Thresher in 1963.

Lockheed Missiles and Space Company was contracted to produce a deep diving rescue submarine.

In an effort to win the design and construction contracts for a DSRV, the company built Deep Quest prototype.

She was launched in June 1967;[3] in March 1970, she was used to find a US Navy Grumman F6F-3 Hellcat which had crashed on 12 January 1944, in the ocean near Naval Air Station San Diego.

Arrival of the DSRV Avalon at Brest airport aboard a Lockheed C-5 Galaxy strategic airlifter
The U.S. Navy's Mystic secured to a Los Angeles class attack submarine