USS Chicago (SSN-721)

USS Chicago (SSN-721) is a Los Angeles-class submarine, the fourth ship of the United States Navy to be named for the city of Chicago, Illinois. The contract to build her was awarded to Newport News Shipbuilding and Dry Dock Company in Newport News, Virginia on 13 August 1981 and her keel was laid down on 5 January 1983. She was launched on 13 October 1984 sponsored by Mrs. Vicki Ann Paisley, wife of Melvyn R. Paisley assistant Secretary of the Navy, and commissioned on 27 September 1986. The Chicago was retired in 2023.

For other ships with the same name, see USS Chicago.

USS Chicago returning from Desert Storm
History
United States
NameChicago
NamesakeThe City of Chicago, Illinois
Ordered13 August 1981
BuilderNewport News Shipbuilding and Dry Dock Company, Newport News, Virginia
Laid down5 January 1983
Launched13 October 1984
Commissioned27 September 1986
Decommissioned21 July 2023[1]
Out of service24 January 2023
HomeportNaval Base Kitsap-Bremerton[2]
MottoWe Will
StatusDecommissioned and struck
Badge
General characteristics
Class and typeLos Angeles-class submarine
Displacement
  • 5,759 tons light,
  • 6,162 tons full,
  • 403 tons dead
Length362 ft (110 m)
Beam33 ft (10 m)
Draft31 ft (9.4 m)
Propulsion
  • 1 × S6G PWR nuclear reactor with D2W core (165 MW), HEU 93.5%[3][4]
  • 2 × steam turbines (33,500) shp
  • 1 × shaft
  • 1 × secondary propulsion motor 325 hp (242 kW)
Speed
  • Surfaced:20 knots (23 mph; 37 km/h)
  • Submerged: +20 knots (23 mph; 37 km/h) (official)
Complement12 officers, 98 men
Sensors and
processing systems		BQQ-5 passive sonar, BQS-15 detecting and ranging sonar, WLR-8 fire control radar receiver, WLR-9 acoustic receiver for detection of active search sonar and acoustic homing torpedoes, BRD-7 radio direction finder
Armament4 × 21 in (533 mm) bow tubes, 12x Vertical Launching System tubes, 27 Mk48 ADCAP torpedo reloads, Tomahawk land attack missile block 3 SLCM range 1,700 nautical miles (3,100 km), Harpoon anti–surface ship missile range 70 nautical miles (130 km), mine laying Mk67 mobile Mk60 captor mines

History

Early in 1996, an RQ-1 Predator aerial reconnaissance drone was successfully controlled from Chicago. The drone reached altitudes up to 6,000 meters (20,000 ft) and ranged up to 185 kilometers (100 nmi.) from the submarine, which was operating at periscope depth.

In the summer of 2005, Chicago tested the virtual periscope, a system that would allow submerged submarines to observe the surface above them without having to come to a shallower depth, as is required by traditional periscopes.

After completing a two-year maintenance and upgrade period at Pearl Harbor Naval Shipyard in October 2011, Chicago arrived in April 2012 at her new homeport, assigned to Submarine Squadron 15, based at Joint Region Marianas on the island of Guam.[5]

In keeping with a tradition that dates back to World War II, Richard O'Kane's cribbage board was transferred from Olympia's Wardroom to Chicago's when Olympia was decommissioned on 31 October 2019, making Chicago the oldest fast attack boat in the Pacific Fleet.[6]

On 2 November 2022, Chicago arrived at Pearl Harbor following a seven-month final deployment.[7]

Chicago arrived at Puget Sound Naval Shipyard on 17 January 2023 for her months-long inactivation and decommissioning process.[8] She was decommissioned on 21 July 2023 during a ceremony at Keyport, Washington.[1]

Awards

Chicago has earned multiple awards in her service life. Chicago has been awarded many unit awards, including the Navy Unit Commendation, three Meritorious Unit Commendations and four Navy "E" Ribbon Submarine Squadron Battle "E"s.

Chicago has also been awarded several campaign and service awards, including the Navy Expeditionary Medal, National Defense Medal, Armed Forces Expeditionary Medal, two Southwest Asia Service Medals, three Sea Service Ribbons, Kuwait Liberation Medal (Saudi Arabia), and the Kuwait Liberation Medal (Kuwait).

One of the barracks buildings at the US Navy's Recruit Training Command, Great Lakes is named "USS Chicago".

References
  1. "Navy decommissions USS Chicago fast-attack submarine after 36 years of service". stripes.com. 25 July 2023. Retrieved 26 July 2023.
  2. "USS Chicago (SSN-721)". nvr.navy.mil. 10 January 2023. Retrieved 20 January 2023.
  3. "International Panel on Fissile Materials". fissilematerials.org. 10 April 2020. Retrieved 27 February 2022.
  4. "Validation of the Use of Low Enriched Uranium as a Replacement for Highly Enriched Uranium in US Submarine Reactors" (PDF). dspace.mit.edu. June 2015. Retrieved 27 February 2022.
  5. "Guam Welcomes USS Chicago". United States Navy. Archived from the original on 16 June 2013. Retrieved 21 June 2012.
  6. "The O'Kane Cribbage Board Is Passed Down". dvidshub.net. 8 November 2019. Retrieved 27 July 2020.
  7. "USS Chicago Returns Home from Final Deployment". Defense Visual Information Distribution Service (DVIDS). 2 November 2022. Retrieved 22 March 2023.
  8. Lin, Peiyu (20 January 2023). "Submarine USS Chicago decommissioning at Puget Sound Naval Shipyard". Kitsap Sun. Retrieved 31 January 2023.
  9. Google Books reference to USS Chicago in novel Black Sea Affair

Further reading
  • Chicago (Submarine (nuclear-powered) : SSN-721), and Newport News Shipbuilding and Dry Dock Company. Chicago Launching of SSN721, October 13, 1984. Newport News, Va: Newport News Shipbuilding, Tenneco Co, 1984. OCLC 690001032
  • Chicago (Submarine (nuclear-powered) : SSN-721). Welcome Aboard, USS Chicago SSN 721. United States: s.n, 1993. OCLC 689994981
  • Genat, Robin and Genat, Robert. Modern U.S. Naval Submarines. Osceola, WI: MBI Publishing Company, 1997. ISBN 0-7603-0276-6 OCLC 36713050
Wikimedia Commons has media related to USS Chicago (SSN-721).
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.