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Los Angeles Class SSNs
Technical Data SSN 688 ~ SSN 718
Length:360 ft
Beam:33 ft
Submerged Displacement: 6297t
Compliment:133
Armament:
4x 21" (533mm) Torpedoe tubes that fire a selection of Mk 48 ADCAP, Mk 52 Torpedoes, Subroc Anti-Submarine missile, Harpoon Anti Ship missile, Tomahawk cruise missile, Anti-ship Mines.
Speed: 35+ kts submerged
Propulsion: 1 S8G Water Cooled Nuclear Reactor which generates 35000hp
Sound Emissions: The 688 Class were the quietest Attack Boats in service with any navy during the 1970s ~ 80s, being far quieter than the Soviet Victor I, II, III and Alfa Class SSNs which were the standard nuclear submarines of the Soviet Navy at the time.
Years of Building & Commissioning: 1976~1996.
Los Angeles Class SSNs:
| SSN 688-Los Angeles | SSN 689-Baton Rouge | SSN 690-Philadelphia | SSN 691- Memphis | SSN 692-Omaha |
| SSN 693-Cincinati | SSN 694-Groton | SSN 695-Birmingham | SSN 696-New York | SSN 697-Indianapolis |
| SSN 698-Bremerton | SSN 699-Jacksonville | SSN 700-Dallas | SSN 701-La Jolla | SSN 702-Phoenix |
| SSN 703-Boston | SSN 704-Baltimore | SSN 705-City Of Corpus | SSN 706-Albuquerque | SSN 707-Portsmouth |
| SSN 708-Minneapolis | SSN 709-Hyman G Rickover | SSN 710-Augusta | SSN 711-San Francisco | SSN 712-Atlanta |
| SSN 713-Houston | SSN 714-Norfolk | SSN 715-Buffalo | SSN 716-Salt Lake City | SSN 717-Olympia |
| SSN 718-Honolulu. |
# in service:31
Los Angeles Class SSNs with VLS
Technical Data SSN 719 ~ SSN 750
Length:360 ft
Beam:33 ft
Submerged Displacement: 6297t
Compliment:133
Armament:
4x 21" (533mm) Torpedoe tubes that fire a selection of:
Mk 48 ADCAP, Mk 52 Torpedoes, Anti-ship Mines.
12x 21" VLS Tubes for Subroc Anti-Submarine missile, Harpoon Anti Ship missile, Tomahawk cruise missile.
Speed: 30+ kts submerged
Propulsion: 1 S8G Water Cooled Nuclear Reactor which generates 35000hp
Sound Emissions: The 688s with VLS were the quietest Attack Boats in service with any navy during the 1980s, being far quieter than the Soviet Victor I, II, III and Alfa Class SSNs, and were suitable match for the Akula Class SSNs which were the standard nuclear submarines of the Soviet Navy at the time.
Years of Building & Commissioning: 1980~1985.
Los Angeles Class SSNs with VLS
| SSN 719-Providence | SSN 720-Pittsburgh | SSN 721-Chicago | SSN 722-Key West |
| SSN 723-Olklahoma City | SSN 724-Louisville | SSN 725-Helena | SSN 750 Newport News |
# in service: 8
Improved Los Angeles Class SSNs
Technical Data SSN 751 ~ SSN 773
Length:360 ft
Beam:33 ft
Submerged Displacement: 6297t
Compliment:133
Armament:
4x 21" (533mm) Torpedoe tubes that fire a selection of:
Mk 48 ADCAP, Mk 52 Torpedoes, Anti-ship Mines.
12x 21" VLS Tubes for , Subroc Anti-Submarine missile, Harpoon Anti Ship missile, Tomahawk cruise missile.
Speed: 30+ kts submerged
Propulsion: 1 S8G Water Cooled Nuclear Reactor which generates 35000hp
Sound Emissions: The 688Is are among the quietest Attack Boats in service with any navy today, being far quieter than the Soviet Victor I, II, III and Alfa Class SSNs, and are more than a match for the Akula Class SSNs which were the standard nuclear submarines of the Soviet Navy during the 1980's. But they are reported to be considerably louder than the Improved Akula Class SSN of which one boat has entered service with the Russian Navy.
Years of Building & Commissioning: 1985~1996.
Improved Los Angeles Class SSNs
| SSN 751-San Juan | SSN 752-Pasadena | SSN 753-Albany | SSN 754 Topeka |
| SSN 755-Miami | SSN 756-Scranton | SSN 757-Alexandra | SSN 758-Asheville |
| SSN 760-Annapolis | SSN 761-Springfeild | SSN 762-Colombus | SSN 763-Santa Fe |
| SSN 764-Boise | SSN 765-Montepelier | SSN 766-Charlotte | SSN 767-Hampton |
| SSN 768-Hartford | SSN 769-Toledo | SSN 770 Tucson | SSN 771-Columbia |
| SSN 772-Greeneville | SSN 773-Cheyenne |
The evolution of U.S vs Russian SSNs in terms of sound emissions.
# in service: 22
The Los Angeles Class of SSNs is numerically the largest Class of Submarines built by the U.S Navy since W.W.II. Since the launch of SSN 688 in 1976, 65 boats have been completed and launched. The 688 Class when launghed during the middle of the cold war were the largest Attack Boats ever, displacing 6297 metric tons. They were much quieter than anything in the Soviet arsenal and could trail Russian Boomers (SSBNs) on their entire patrols without the Russians knowing about it. The 688 Class have been divided into three categories: the 688s, the 688s with VLS (Vertical Launch System) and the 688I or Improved Los Angeles Class which have the VLS and their bowplaines mounted on the forward section of their hull, as opposed to the sail to give greater control at periscope depth and to make surfacing through ice alot easier. The armament of all the 688s comprises of the heavy Mk 48 ADCAP torpedo which is used usually against surface vessels and larger submarine units eg: Typhoon and Oscar class Missile Boats. The newer and lighter Mk 52 high speed torpedo is also carried, the Mk52 is a light fast torpedo capable of catching the latest generation of Soviet subs whilst still being to rupture a double hull. Both these torpedoes are fired from four 21" (533mm) torpedo tubes placed amidships. Harpoon anti-ship and Tomahawk cruise and SUBROC ASW missiles can also be launched from these tubes, or on newer boats, from the VLS which is specially designed to fire them. The U.S Navy discloses the top speed of the 688 Class at 30+kts. While the older 688s will soon be retired from the fleet the newer boats still have many years of service ahead of them.