USS Philadelphia (SSN-690)

The contract to build her was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut on 8 January 1971 and her keel was laid down on 12 August 1972.

In June 1980 Philadelphia departed her homeport of Groton, Connecticut, and headed on a world cruise that would take it to the Indian Ocean/Persian Gulf, as well as the Pacific.

In addition, she was fitted to provide Deep Submergence Rescue Vehicle (DSRV) mother ship support.

[3] On 5 September 2005 Philadelphia was in the Persian Gulf about 30 nautical miles (60 km) northeast of Bahrain when she collided with a Turkish merchant ship, MV Yasa Aysen.

The Turkish ship, which suffered minor damage to her hull just above the water line, was inspected by the United States Coast Guard and found still seaworthy.

In 2006, Philadelphia completed the first-ever Pre-Inactivation Restricted Availability (PIRA) conducted at Portsmouth Naval Shipyard in Kittery, Maine.

Sailors assigned to USS Philadelphia stand topside as the submarine gets underway
Sailors aboard the Nimitz-class aircraft carrier USS Carl Vinson observe the USS Philadelphia as the ships pass one another in the Suez Canal (2005).