Crewmembers of the USS Portsmouth leap into the waters of the Pacific Ocean. Crewmembers of the USS Portsmouth (SSN 707) leap into the waters of the Pacific Ocean during a swim call on Aug. 15, 2004. Portsmouth is a Los Angeles Class Fast Attack nuclear-powered submarine on a final cruise to Norfolk, Va., where it is scheduled for decommissioning in October of 2005. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 595422-R-LPM63-213.jpg Photo Gallery