Thresher-class Nuclear Attack Submarine

The Thresher-class Nuclear Attack Submarine was a class of nuclear-powered fast attack submarines (hull classification symbol SSN) in service with the United States Navy from the early 1960s until 1996. They were a significant improvement on the Skipjack class, with greatly improved sonar, diving depth, and silencing. They were the forerunners of all subsequent US Navy SSN designs. They served in the 1960s through middle 1980s, until retired due to age (except for the USS Thresher which was lost). They were followed by the Sturgeon and Los Angeles classes.

The Thresher-class resulted from a study commissioned in 1956 by Chief of Naval Operations (CNO) Admiral Arleigh Burke. In "Project Nobska", the Committee on Undersea Warfare of the United States National Academy of Sciences, collaborating with numerous other agencies, considered the lessons of submarine warfare and anti-submarine warfare learned from various prototypes and experimental platforms.

Unit Run

 * USS Thresher (SSN-593) - Lost with 129 crewmembers and shipyard personnel on April 10th 1963, 200 nautical miles (370.4 kilometers) east of Cape Cod, Massachusetts, exact cause unknown.
 * USS Permit (SSN-594)
 * USS Plunger (SSN-595)
 * USS Barb (SSN-596)
 * USS Pollack (SSN-603)
 * USS Haddo (SSN-604)
 * USS Jack (SSN-605)
 * USS Tinosa (SSN-606)
 * USS Dace (SSN-607)
 * USS Guardfish (SSN-612)
 * USS Flasher (SSN-613)
 * USS Greenling (SSN-614)
 * USS Gato (SSN-615)
 * USS Haddock (SSN-621)