USSSan Juan in the Atlantic Ocean, 29 August 2023 | |
| History | |
|---|---|
| Name | San Juan |
| Namesake | The City ofSan Juan, Puerto Rico |
| Awarded | 30 November 1982 |
| Builder | General Dynamics Electric Boat |
| Laid down | 9 August 1985 |
| Launched | 6 December 1986 |
| Sponsored by | Mrs. Sherrill Hernandez |
| Commissioned | 6 August 1988 |
| Homeport | Naval Base Kitsap-Bremerton[1] |
| Identification |
|
| Motto | Technology and Tradition |
| Status | Awaiting decommissioning |
| Badge | |
| General characteristics | |
| Class & type | Los Angeles-classsubmarine |
| Displacement | |
| Length | 110.3 m (361 ft 11 in) |
| Beam | 10 m (32 ft 10 in) |
| Draft | 9.4 m (30 ft 10 in) |
| Installed power | nuclear |
| Propulsion | |
| Speed | Classified |
| Complement | 12 officers, 98 men |
| Sensors & processing systems | BSY-1 sonar suite combat system |
| Armament |
|
USSSan Juan (SSN-751), aLos Angeles-classsubmarine, is the third ship of theUnited States Navy to be namedSan Juan, though only the second named forSan Juan, Puerto Rico. The contract to build her was awarded to theElectric Boat Division ofGeneral Dynamics Corporation inGroton, Connecticut on 30 November 1982 and herkeel was laid down on 9 August 1985. She waslaunched on 6 December 1986sponsored by Mrs. Sherrill Hernandez, wife of VADMDiego E. Hernández,[5] andcommissioned on 6 August 1988.
During the early evening of 13 March 2007, units of the USSEnterprise Carrier Strike Group (CSG) received a series of indications that USSSan Juan (SSN-751), aLos Angeles-class submarine conducting pre-deployment training with theEnterprise CSG, was in distress.[6]
The submarine established communications in the early morning hours of 14 March, and indicated that there were no problems; hence, units were able to stand down from the search and rescue that was already well underway.[6]
San Juan was the first of the Flight III or 688i for "improved" design, that received a number of significant improvements to the previous boats in the class.San Juan and all subsequent boats in her class are quieter and incorporate an advanced AN/BSY-1sonar suite combat system. Another improvement includes the ability to lay mines from their torpedo tubes.San Juan's sail was also strengthened, enabling the ability to break through ice.[7]

In 1993San Juan conducted the first through-ice surfacing for a 688i-class submarine in theArctic.[8]
On 19 March 1998 off the coast ofLong Island, New York, the submergedSan Juan collided with the surfacedfleet ballistic missile submarineUSS Kentucky (SSBN-737). There were no injuries reported as a result of the collision.[9]
On 13 March 2007,San Juan was the subject of asearch and rescue mission by the carrierUSS Enterprise and elements of herCarrier Strike Group off the coast of Florida, when contact with the submarine was lost, and a red flare was spotted in her projected vicinity, suggesting an emergency. Communications were re-established early the next day whenSan Juan surfaced, and no problems were indicated.[10]
On 4 November 2009San Juan arrived atSimon's Town, South Africa. The ship engaged in at-sea maneuvers with theSouth African Navy for the first time in U.S. history.[11]

San Juan arrived atPortsmouth Naval Shipyard (PNSY), Maine, on 8 April 2010 for an engineered overhaul (EOH); for maintenance and system upgrades.[12]
As of 2012San Juan was assigned to Submarine Group Two. Submarine Group Two was disestablished in 2014, andSan Juan became part ofSubmarine Force, U.S. Atlantic Fleet (COMSUBLANT).
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This article incorporatespublic domain material from theNaval Vessel Register.
This article incorporatespublic domain material from websites or documents of theUnited States Navy.