USS Alexandria (SSN 757)

Submarine Squadron 11

San Diego, CA
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About USS Alexandria (SSN 757)

The Los Angeles-class fast attack submarine USS Alexandria (SSN 757) is assigned to Submarine Squadron 11 in San Diego, Calif. She is the third ship in the history of the United States Navy to be named for both Alexandria, Virgina and Alexandria, Louisiana. Her keel was laid down on June 19, 1987. She was launched on June 23, 1990, and she was commissioned on June 29, 1991.

Attack submarines are designed to seek and destroy enemy submarines and surface ships; project power ashore with Tomahawk cruise missiles and Special Operation Forces (SOF); carry out Intelligence, Surveillance, and Reconnaissance (ISR) missions; support battle group operations; and engage in mine warfare.

With the number of foreign diesel-electric/air-independent propulsion submarines increasing yearly, the United States Submarine Force relies on its technological superiority and the speed, endurance, mobility, stealth and payload afforded by nuclear power to retain its preeminence in the undersea battlespace.

The Navy's submarine force is comprised of three different classes of submarines. The Los Angeles (SSN 688)-class submarines are the backbone of that submarine force.


Boat Characteristics

Class Los Angeles
Builder Newport News Shipbuilding Co.; General Dynamics Electric Boat Division
Date Deployed Nov. 13, 1976 (USS Los Angeles)
Propulsion One nuclear reactor, one shaft
Length 360 feet (109.73 meters)
Beam  33 feet (10.06 meters)
Displacement Approximately 6,900 tons (7011 metric tons) submerged
Speed 25+ knots (28+ miles per hour, 46.3 +kph)
Crew 16 Officers; 127 Enlisted
Armament Tomahawk missiles, VLS tubes (SSN 719 and later), MK48 torpedoes, four torpedo tubes
From the U.S. Navy Fact File. For more information about U.S. Navy submarines, please visit