NAVYPEDIA

Photo

Los Angeles 1979

Ships

No	Name	Yard No	Builder	Laid down	Launched	Comm	Fate
SSN688	Los Angeles	600	Northrop Grumman Newport News	8.1.1972	6.4.1974	13.11.1976	stricken 2.2011
SSN689	Baton Rouge	602	Northrop Grumman Newport News	18.11.1972	26.4.1975	25.6.1977	stricken 1.1995
SSN690	Philadelphia	203	General Dynamics, Electric Boat Div., Groton	12.8.1972	19.10.1974	25.6.1977	stricken 6.2011
SSN691	Memphis	603	Northrop Grumman Newport News	23.6.1973	3.4.1976	17.12.1977	stricken 1.2012
SSN692	Omaha	204	General Dynamics, Electric Boat Div., Groton	27.1.1973	21.2.1976	11.3.1978	stricken 10.1995
SSN693	Cincinnati	604	Northrop Grumman Newport News	6.4.1974	19.2.1977	10.6.1978	stricken 7.1995
SSN694	Groton	205	General Dynamics, Electric Boat Div., Groton	3.8.1973	9.10.1976	8.7.1978	stricken 11.1997
SSN695	Birmingham	605	Northrop Grumman Newport News	26.4.1975	29.10.1977	16.12.1978	stricken 12.1997
SSN696	New York City	206	General Dynamics, Electric Boat Div., Groton	15.12.1973	18.6.1977	3.3.1979	stricken 4.1997
SSN697	Indianapolis	207	General Dynamics, Electric Boat Div., Groton	19.10.1974	30.7.1977	5.1.1980	stricken 12.1998
SSN698	Bremerton	208	General Dynamics, Electric Boat Div., Groton	8.5.1976	22.7.1978	28.3.1981	non-active (2020)
SSN699	Jacksonville	209	General Dynamics, Electric Boat Div., Groton	21.2.1976	18.11.1978	16.5.1981	non-active (2020)
SSN700	Dallas	210	General Dynamics, Electric Boat Div., Groton	9.10.1976	28.4.1979	18.7.1981	stricken 4.2018
SSN701	La Jolla	211	General Dynamics, Electric Boat Div., Groton	16.10.1976	11.8.1979	30.9.1981	stricken 11.2019
SSN702	Phoenix	212	General Dynamics, Electric Boat Div., Groton	30.7.1977	8.12.1979	19.12.1981	stricken 7.1998
SSN703	Boston	213	General Dynamics, Electric Boat Div., Groton	11.8.1978	19.4.1980	30.1.1982	stricken 11.1999
SSN704	Baltimore	214	General Dynamics, Electric Boat Div., Groton	21.5.1979	13.12.1980	24.7.1982	stricken 7.1998
SSN705	City of Corpus Christi	215	General Dynamics, Electric Boat Div., Groton	4.9.1979	25.4.1981	8.1.1983	stricken 8.2017
SSN706	Albuquerque	217	General Dynamics, Electric Boat Div., Groton	27.12.1979	13.3.1982	21.5.1983	stricken 2.2017
SSN707	Portsmouth	218	General Dynamics, Electric Boat Div., Groton	8.5.1980	18.9.1982	1.10.1983	stricken 8.2005
SSN708	Minneapolis-Saint Paul	219	General Dynamics, Electric Boat Div., Groton	20.1.1981	19.3.1983	10.3.1984	stricken 8.2008
SSN709	Hyman G. Rickover	220	General Dynamics, Electric Boat Div., Groton	24.7.1981	27.8.1983	21.7.1984	stricken 12.2007
SSN710	Augusta	221	General Dynamics, Electric Boat Div., Groton	1.4.1982	21.1.1984	19.1.1985	stricken 2.2009
SSN711	San Francisco	616	Northrop Grumman Newport News	26.5.1977	27.10.1979	24.4.1981	training hulk 11.2017
SSN712	Atlanta	617	Northrop Grumman Newport News	17.8.1978	16.8.1980	6.3.1982	stricken 12.1999
SSN713	Houston	618	Northrop Grumman Newport News	29.1.1979	21.3.1981	25.9.1982	stricken 8.2017
SSN714	Norfolk	619	Northrop Grumman Newport News	1.8.1979	31.10.1981	21.5.1983	stricken 11.2015
SSN715	Buffalo	620	Northrop Grumman Newport News	25.1.1980	8.5.1982	5.11.1983	stricken 1.2019
SSN716	Salt Lake City	621	Northrop Grumman Newport News	26.8.1980	16.10.1982	12.5.1984	stricken 1.2006
SSN717	Olympia	622	Northrop Grumman Newport News	31.3.1981	30.4.1983	17.11.1984	in service (2020)
SSN718	Honolulu	623	Northrop Grumman Newport News	10.11.1981	24.9.1983	6.7.1985	stricken 11.2007
SSN719	Providence	228	General Dynamics, Electric Boat Div., Groton	14.10.1982	4.8.1984	27.7.1985	in service (2020)
SSN720	Pittsburgh	229	General Dynamics, Electric Boat Div., Groton	15.4.1983	8.12.1984	23.11.1985	stricken 4.2020
SSN721	Chicago	625	Northrop Grumman Newport News	5.1.1983	13.10.1984	27.9.1986	in service (2020)
SSN722	Key West	626	Northrop Grumman Newport News	6.7.1983	20.7.1985	12.9.1987	in service (2020)
SSN723	Oklahoma City	627	Northrop Grumman Newport News	4.1.1984	2.11.1985	9.7.1988	in service (2020)
SSN724	Louisville	232	General Dynamics, Electric Boat Div., Groton	16.9.1984	14.12.1985	8.11.1986	in service (2020)
SSN725	Helena	233	General Dynamics, Electric Boat Div., Groton	28.3.1985	28.6.1986	11.7.1987	in service (2020)
SSN750	Newport News	628	Northrop Grumman Newport News	3.3.1984	15.3.1986	3.6.1989	in service (2020)
SSN751	San Juan	236	General Dynamics, Electric Boat Div., Groton	16.8.1985	6.12.1986	6.8.1988	in service (2020)
SSN752	Pasadena	237	General Dynamics, Electric Boat Div., Groton	20.12.1985	12.9.1987	11.2.1989	in service (2020)
SSN753	Albany	629	Northrop Grumman Newport News	22.4.1985	13.6.1987	7.4.1990	in service (2020)
SSN754	Topeka	239	General Dynamics, Electric Boat Div., Groton	13.5.1986	23.1.1988	21.10.1989	in service (2020)
SSN755	Miami	240	General Dynamics, Electric Boat Div., Groton	24.10.1986	12.11.1988	30.6.1990	stricken 12.2014
SSN756	Scranton	632	Northrop Grumman Newport News	29.8.1986	3.7.1989	26.1.1991	in service (2020)
SSN757	Alexandria	241	General Dynamics, Electric Boat Div., Groton	19.6.1987	23.6.1990	29.6.1991	in service (2020)
SSN758	Asheville	633	Northrop Grumman Newport News	9.1.1987	24.2.1990	28.9.1991	in service (2020)
SSN759	Jefferson City	634	Northrop Grumman Newport News	21.9.1987	17.8.1990	29.2.1992	in service (2020)
SSN760	Annapolis	244	General Dynamics, Electric Boat Div., Groton	15.6.1988	18.5.1991	11.4.1992	in service (2020)
SSN761	Springfield	245	General Dynamics, Electric Boat Div., Groton	29.1.1990	4.1.1992	9.1.1993	in service (2020)
SSN762	Columbus	246	General Dynamics, Electric Boat Div., Groton	7.1.1991	1.8.1992	24.7.1993	in service (2020)
SSN763	Santa Fe	247	General Dynamics, Electric Boat Div., Groton	9.7.1991	12.12.1992	8.1.1994	in service (2020)
SSN764	Boise	635	Northrop Grumman Newport News	25.8.1988	23.3.1991	7.11.1992	in service (2020)
SSN765	Montpelier	636	Northrop Grumman Newport News	19.5.1989	23.8.1991	13.3.1993	in service (2020)
SSN766	Charlotte	637	Northrop Grumman Newport News	17.8.1990	3.10.1992	16.9.1994	in service (2020)
SSN767	Hampton	638	Northrop Grumman Newport News	2.3.1990	3.4.1992	6.11.1993	in service (2020)
SSN768	Hartford	250	General Dynamics, Electric Boat Div., Groton	27.4.1992	4.12.1993	10.12.1994	in service (2020)
SSN769	Toledo	639	Northrop Grumman Newport News	6.5.1991	28.8.1993	24.2.1995	in service (2020)
SSN770	Tucson	640	Northrop Grumman Newport News	15.8.1991	20.3.1994	18.8.1995	in service (2020)
SSN771	Columbia	252	General Dynamics, Electric Boat Div., Groton	21.4.1993	24.9.1994	9.10.1995	in service (2020)
SSN772	Greenville	641	Northrop Grumman Newport News	28.2.1992	17.9.1994	16.2.1996	in service (2020)
SSN773	Cheyenne	642	Northrop Grumman Newport News	6.7.1992	16.4.1995	13.9.1996	in service (2020)

Technical data

Displacement standard, t
Displacement normal, t	SSN688-699: 6080 / 6927 SSN700-714: 6130 / 6977 SSN715-718: 6165 / 7012 SSN719-750: 6255 / 7102 SSN751-770: 6300 / 7147 SSN771-773: 6330 / 7177
Length, m	109.7
Breadth, m	10.1
Draught, m	9.75
No of shafts	1
Machinery	2 sets geared steam turbines, 1 General Electric S6G nuclear reactor
Power, h. p.	35000
Max speed, kts	/ 32
Fuel, t	nuclear
Endurance, nm(kts)	practically unlimited
Armament	SSN688-691: 4 - 533 Mk 67 TT (amidships, 26 torpedoes) SSN692-700: 4 - 533 Mk 67 TT (amidships, 26 torpedoes, including 4 Sub-Harpoon UGM-84 SSM) SSN701-706, 711-714: 4 - 533 Mk 67 TT (amidships, 26 torpedoes, including 8 Tomahawk UGM-109 CruM, 4 Sub-Harpoon UGM-84 SSM) SSN707-710, 715-718: 4 - 533 Mk 67 TT (amidships, 26 torpedoes, including 8 Tomahawk UGM-109 CruM, 4 Sub-Harpoon UGM-84 SSM, 4 SUBROC UUM-44 ASW rockets) SSN719-725: 1 x 12 Tomahawk CruM (12 UGM-109), 4 - 533 Mk 67 TT (amidships, 26 torpedoes, including 8 Tomahawk UGM-109 CruM, 4 Sub-Harpoon UGM-84 SSM, 4 SUBROC UUM-44 ASW rockets) SSN750-755: 1 x 12 Tomahawk CruM (12 UGM-109), 4 - 533 Mk 67 TT (amidships, 26 torpedoes, including 8 Tomahawk UGM-109 CruM, 4 Sub-Harpoon UGM-84 SSM) SSN756-773: 1 x 12 Tomahawk CruM (12 UGM-109), 4 - 533 Mk 67 TT (amidships, 26 torpedoes, including 8 Tomahawk UGM-109 CruM, 4 Sub-Harpoon UGM-84 SSM or mines instead of torpedoes)
Electronic equipment	SSN688-699: BPS-15A radar, BQQ-5A(v)1 or BQQ-5C sonar suite, BQS-15 sonar, BQR-15 or TB-16D or TB-23 or TB-29 towed array, BRD-7, WLR-8(v)2, WLR-10, WLR-9/12, WLR-1H ECM units, Mk 1 Mod. 2 acoustic decoy launchers, Mk 113 Mod. 10 CCS SSN700-709, 711-715: BPS-15A radar, BQQ-5A(v)1 or BQQ-5C sonar suite, BQS-15 sonar, BQR-15 or TB-16D or TB-23 or TB-29 towed array, BRD-7, WLR-8(v)2, WLR-10, WLR-9/12, WLR-1H ECM units, Mk 1 Mod. 2 acoustic decoy launchers, Mk 117 CCS SSN710, 716-725: BPS-15A radar, BQQ-5D sonar suite, BQS-15 sonar, BQR-15 or TB-16D or TB-23 or TB-29 towed array, BRD-7, WLR-8(v)2, WLR-10, WLR-9/12, WLR-1H ECM units, Mk 1 Mod. 2 acoustic decoy launchers, Mk 117 CCS SSN751-773: BPS-16 radar, BQQ-10 sonar suite, BQS-15 sonar, TB-29 towed array, BRD-7, WLR-8(v)2, WLR-10, WLR-9/12, WLR-1H ECM units, Mk 1 Mod. 2 acoustic decoy launchers, Mk 117, BSY-1 CCS
Complement	141
Diving depth operational, m	450

Standard scale images

Graphics

Project history These submarines restore the speed advantage of the Skipjacks while improving on the sonar and weapons capability of the Sturgeons. The great increase i

These submarines restore the speed advantage of the Skipjacks while improving on the sonar and weapons capability of the Sturgeons. The great increase in size (displacement submerged rising from 4650t to 6900t is due largely to a doubling in reactor power. Even so, some sacrifice had to be made in pressure hull strength, so that these craft cannot dive as deeply as their predecessors. Plans originally called for introducing a new hull steel about 1973, which would have restored die depth in later units, but this programme failed to materialise. Reportedly the Los Angeles class gained about 5kts on its predecessor. This class was designed for an all-digital combat system, but it was not ready in time, so SSN688-699 had the earlier Mk 113. The Mk 117 was introduced in SSN 700 and eventually installed not only in the earlier ships of this class but also in the Sturgeons.

Design work began in 1968 on a new 'mid-1970s' attack submarine, to incorporate both new sensor and propulsion technology and a new stand-off weapon (which would have replaced SUBROC and would have had both anti-ship and antisubmarine roles). In view of the limited internal weapon space available in the torpedo rooms of conventionally designed nuclear submarines, twenty vertical launch tubes would have been provided abaft the fin of the new submarine. Other improvements, such as greatly increased power and improved silencing, added size, so that by December 1972 the new submarine was being described as: 143.8m x 12.2m (as against 102.1m x 10.1m) for a Los Angeles), displacing 13700t submerged (as against 6630t estimated at that time). It would have cost about 80% as much as a Trident missile submarine, then estimated at $500m in FV73 dollars. Admiral Zumwalt cancelled it and its new missile in 1973, and a submarine-launched version of Harpoon was substituted.

The associated sonar is the new digital BQQ-5, originally comprising a bow sphere and a conformal array similar to that in the Sturgeon class, but using digital beam control (beam preforming) instead of analog beam-forming. Later a towed array, in an external tube, was added.

Weapon capacity is slightly larger than that of the Sturgeon class, thanks largely to a slightly greater hull diameter (reportedly 26 rather than 23 weapons). In addition, because the Los Angeles was designed from the first to fire the Mk 48 torpedo, its torpedo racks are long enough to accommodate both weapon and wire reel. Earlier submarines were designed for either long free-running torpedoes or for short wire-guided ones (Mk 37), and so had to devote a rack to wire canisters when the long wire-guided weapon appeared.

Units from SSN 719 on have twelve vertical launch tubes for Tomahawk missiles, located between the forward end of the pressure hull and the bow sonar sphere. They carry a total of twenty such missiles (earlier units carry eight, displacing eight torpedoes); SSN 701 was the first of the class to be equipped to fire Tomahawk from her torpedo tubes, but SSN 712 was the first with operational Tomahawk capability (30 November 1983).

tail fins (like Seawolf)

tail fins (like Seawolf) and modified propulsion.

Modernizations

7.1987, Augusta: + BQG-5D WAA passive sonar system

1980s, Los Angeles, Baton Rouge, Philadelphia, Memphis, Omaha, Cincinnati, Groton, Birmingham, New York City, Indianapolis, Bremerton: - Mk 113 CCS; + Mk 117 CCS

late 1980s, Augusta, Louisville: + BQQ-10 ARCI sonar suite

1989, Memphis: was used as experimental submarine to test composite hull structures, UUVs, advanced sonars, hull friction reduction.

mid-1990s, Memphis: received a GRP turtleback abaft the sail for UUVs and a towing winch and drum for tested towed sonar arrays, 4.27m-high and 1.37m-wide vertical surfaces at the ends of the stern stabilizers to accommodate sonar transducer arrays, and many others

early 1996, Chicago: + Predator Tier II UAV

12.1996, Asheville: + Sea Ferret UAV, AMDS mine detection system

1999, Annapolis: - BRD-7, WLR-8(v)2, WLR-10, WLR-9/12, WLR-1H ECM units; + BLQ-21 ECM suite, BVS-1 optronic system

2000-early 2000s, Los Angeles, Philadelphia, Dallas, La Jolla, Buffalo: + ability to use 1-2 DDS (Dry Deck Shelter) with 1 SDV (swimming delivery vehicle) or 20 SEALs with 4 CRRC (Combat Rubber Raiding Craft).

2000, Charlotte; 2002, Greenville; late 2000s-early 2010s, Columbus, Hartford, Cheyenne: + ability to carry 1 ASDS (70t Advanced SEAL Delivery System) mini-submarine.

2005-2011, Boise, Montpelier, Hampton: - BSY-1 CCS; + BYG-1 CCS

2010s, Cheyenne: + LCCA (Low Cost Conformal Array) sonar

Naval service

San Francisco was badly damaged by grounding submerged off Guam 8.1.2005 and was under repair from November 2006 to November 2008, using constructions from cannibalized Honolulu. Newport News was damaged during collision with Japanese tanker 8.1.2007. Hartford was badly damaged as result of collision with LPD New Orleans 20.3.2009 and was repaired till November 2010. Montpelier was badly damaged in collision with cruiser San Jacinto 13.10.2012 and returned to service in April 2014. Jacksonville was damaged by collision with unidentified object 10.1.2013.