Also known as the 688 class (pronounced "six-eighty-eight") after the hull number of lead vessel USS Los Angeles (SSN-688), 62 were built from 1972 to 1996, the latter 23 to an improved 688i standard.

USS Los Angeles (SSN-688), lead ship of her class of submarines, was the fourth ship of the United States Navy to be named for Los Angeles, California. The contract to build her was awarded to Newport News Shipbuilding and Dry Dock Company in Newport News, Virginia on 8 January 1971 and her keel was laid down on 8 January 1972.

Los Angeles class submarines carry about 25 torpedo tube-launched weapons, as well as Mark 67 and Mark 60 CAPTOR mines and were designed to launch Tomahawk cruise missiles, and Harpoon missiles horizontally (from the torpedo tubes). The last 31 boats of this class also have 12 dedicated vertical launching system (VLS) tubes for launching Tomahawks.

Nov 22, 2024 · The Los Angeles class were 62 nuclear-powered fast attack submarines (SSN), of which 24 are still currently in service with the US Navy. Called colloquially the “688” class after the lead boat pennant (SSN-688), 62 were built in an uninterrupted serie from 1972 to 1996 which by itself is a record.

SSNs 751-773 - The final 23 hulls [SSN 751 and later] referred to as "688I" (for improved), are quieter, incorporate an advanced BSY-1 sonar suite combat system and the ability to lay mines from their torpedo tubes.

SSN 688 - USS Los Angeles . Type, class: Attack Submarine, nuclear propulsion - SSN; Los Angeles class (Flight I) Builder: Newport News Shipbuilding & Dry Dock, Newport News, Virginia, USA . STATUS: Awarded: January 8, 1971. Laid down: January 8, 1972. Launched: April 6, 1974. Commissioned: November 13, 1976. D ecommissioned: February 4, 2011

The nuclear-powered USS Los Angeles (SSN-668) attack submarine represented the lead ship of the largest group of vessels constructed for the United States Navy during the Cold War, totaling 62 boats in the Los Angeles-class.

Jul 7, 2011 · SSNs 751-773 - The final 23 hulls [SSN 751 and later] referred to as "688I" (for improved), are quieter, incorporate an advanced BSY-1 sonar suite combat system and the ability to lay mines...

Jul 7, 2011 · Phase IV (FY 2001) upgrades the HF sonar on late-generation, Improved Los Angeles-class submarines (SSN-688I). Each phase installs improved processing and workstations (point click trackballs...

The LOS ANGELES class SSN was designed almost exclusively for Carrier Battlegroup escort; they were fast, quiet, and could launch Mk48 and ADCAP torpedoes, Harpoon Anti-Ship Missiles (no longer...