《產量最大》SSN-688 洛杉磯級(Los Angeles)核動力攻擊潛艇

克里斯Chris

SSN-688 Los Angeles-class
SSN-688 洛杉磯級核動力攻擊潛艇



原文：

The LOS ANGELES class SSN specifically included ASW against Soviet submarines trying to sink the US carrier and ASUW against capital ships in the Soviet surface action group [SAG]. The LOS ANGELES class SSN was designed almost exclusively for Carrier Battlegroup escort; they were fast, quiet, and could launch Mk48 and ADCAP torpedoes, Harpoon Anti-Ship Missiles (no longer carried), and both land attack and anti-ship (no longer carried) Tomahawk cruise missiles. The new submarines showed another step improvement in quieting and an increase in operating speed to allow them to support the CVBG. Escort duties included conducting ASW sweeps hundreds of miles ahead of the CVBG and conducting attacks against the SAG.

Submarines of the LOS ANGELES Class are among the most advanced undersea vessels of their type in the world. While anti-submarine warfare is still their primary mission, the inherent characteristics of the submarine's stealth, mobility and endurance are used to meet the challenges of today's changing global geopolitical climate. Submarines are able to get on station quickly, stay for an extended period of time and carry out a variety of missions including the deployment of special forces, minelaying, and precision strike land attack.


These 360 foot, 6,900-ton ship are well equipped to accomplish these tasks. Faster than her predecessors and possessing highly accurate sensors, weapons control systems and central computer complexes, the LOS ANGELES Class is armed with sophisticated MK-48 Advanced Capability anti-submarine/ship torpedoes, Tomahawk land attack cruise missiles, and mines.

克里斯Chris

續：

These submarines were built in three successive variants:

SSNs 688-718 - Original Los Angeles class

SSNs 719-750 - Starting with SSN 719 and beyond the last 31 hulls of the class have 12 vertical launch tubes for the Tomahawk cruise missile, along with an upgraded reactor core.

SSNs 751-773 - The final 23 hulls [SSN 751 and later] referred to as "688I" (for improved), are quieter, incorporate an advanced BSY-1 sonar suite combat system and the ability to lay mines from their torpedo tubes. They are configured for under-ice operations in that their forward diving planes have been moved from the sail structure to the bow and the sail has been strengthened for breaking through ice.

The USS MEMPHIS (SSN 691) has been modified to serve as a test and evaluation platform for advanced submarine systems and equipment, while retaining her combat capability.

The submarines are outfitted with a wide variety of antennas, transmitters and receivers necessary to support accomplishment of their assigned tasks. Interior communication is possible on a wide range of circuits and sound powered phones which do not require electrical power and are reliable in battle situations. Various alarm and indicating circuits enable the Officer of the Deck and the Engineering Officer of the Watch to continuously monitor critical parameters and equipment located throughout the ship.

The nuclear power plant gives these boats the ability to remain deployed and submerged for extended periods of time. To take advantage of this, the ship is outfitted with auxiliary equipment to provide for the needs of the crew. Atmosphere control equipment replenishes oxygen used by the crew, and removes carbon dioxide and other atmosphere contaminants. The ship is equipped with two distilling plants which convert salt water to fresh water for drinking, washing and the propulsion plant. Sustained operation of the complex equipment and machinery on the ship requires the support of repair parts carried on board. The ship carries enough food to feed a crew of over one hundred for as long as 90 days.

克里斯Chris

內部示意圖


Los Angeles class submarines are divided into two watertight compartments. The forward compartment houses all the living spaces, weapons systems, control centers, and sonar/fire control computers. The after compartment houses the nuclear reactor and the ship's propulsion equipment.

1. Engine Room. The engine room houses all the propulsion machinery, as well as the Ship's Service Turbine Generators that supply the ship's electricity, and the evaporator, which distills water for the propulsion plant and other shipboard use.

2. Control Room/Attack Center. Located in the upper level of the forward compartment is the control room--the heart of the ship. The Officer of the Deck stands his watch here, controlling all activities on board. In control, the ship's location is continually determined and plotted, the course and depth are controlled, and all sonar contacts are tracked. The control room also functions as the attack center, where all of the ship's weapon systems are controlled from.. The sail helps to add stability to the submerged vessel. Additionally it houses all of the periscopes and antennae. In the forward top portion of the sail is the bridge. When the ship is on the surface, the Officer of the Deck will shift his watch to the bridge. Here he has clear view of all the surrounding waters, in addition to getting a breath of fresh air and seeing the welcome sun.

4. Mess Decks, Berthing, and Wardroom. The middle level of the forward compartment is dedicated to the crew's living spaces. Here is found the mess decks and galley which, when underway, serve four meals a day, one every six hours (allowing for all watchstanders to get a hot meal). Also here are the berthing spaces. Here is the only personal space that a crewman gets--his bed (known as a "rack". These racks are stacked three tall throughout the berthing spaces and have only a curtain to close them off from the rest of the boat. With this as the only private area on board, it is not uncommon to find pictures of family and friends put up on the wall in a rack along with personal cassette and CD players for entertainment. The wardroom> is the officers own room. Here is a big table around which the officers eat, train, and work

5. Torpedo Room. The lower level of the forward compartment is the Torpedo Room. This room stores the ship's weapons which include Mk48 ADCAP torpedoes, Tomahawk cruise missiles, and mines. The torpedo room houses the handling equipment and access to the ship's four torpedo tubes. Weapons are moved from their stowage positions, loaded into the tubes, and readied for launch all in this room by the ship's Torpedomen. The torpedo room also houses controls for the vertical launch tubes which add 12 more Tomahawk cruise missiles to the ship's load.

6. Sonar Sphere. Housed in the very forward end of the submarine is the sonar sphere. This is an array of over 1,000 hydrophones which makes up part of the advanced BQQ-5E sonar suite. Out in front of the ship, positions the sphere as far as possible from the ship's own noise, thereby giving it the best listening conditions.

克里斯Chris

續:

SSN 688-class submarines, which will comprise 68% of the attack submarine force in 2015, must be modernized to ensure that they remain effective against increasingly sophisticated undersea adversaries. The use of COTS and open systems architecture (OSA) will enable rapid (annual) updates to both software and hardware, and the use of COTS-based processors means that sonar system computing power can grow at the same rate as commercial technology.

The creation of the Acoustic Rapid COTS Insertion (A-RCI) program was based on a detailed review of the U.S. acoustic advantage compared to foreign nuclear and diesel electric submarines. This program is the centerpiece of the Los Angeles (SSN 688)-class modernization effort. SSN 688 class submarines, which will comprise 68% of the attack submarine force in 2015, must be modernized to ensure that they remain effective when operating against increasingly sophisticated undersea adversaries. The use of COTS and Open Systems Architecture (OSA) will enable rapid (annual) updates to both software and hardware, and the use of COTS-based processors means that sonar system computing power can grow at the same rate as the commercial world.


A-RCI is a four phased transformation of existing sonar systems (AN/BSY-1, AN/BQQ-5, or AN/BQQ-6) to a more capable and flexible COTS/OSA-based system. It also will provide the submarine force with a common sonar system. The process is designed to minimize the impact of fire-control and sonar system upgrades on a ship's operational schedule, and will be accomplished without the need for major shipyard availabilities. Phase I, which commenced in November 1997, will enhance towed-array processing. Phase II will provide additional towed- and hull-array software upgrades. Phase III will upgrade the spherical array, and Phase IV will upgrade the high-frequency sonar system on SSN 688I-class submarines. Each phase will install improved processing and control and display workstations. The current installation plan completes all SSNs through Phase III by FY03.

Between 1998 and 2001 the US will retire 11 Los Angeles class submarines that have an average of 13 years left on their 30-year service lives. SSN-688 class submarines could operate for much longer than 30 years; one of the shipbuilders stated that 10 to 20 years of additional service would not be unreasonable. Past Navy actions indicate that extending a submarine's service life may be feasible. After a 5-year study was completed on the SSN-637 class submarine--the predecessor of the SSN-688 class--the design life was extended from 20 years to 30 years, with a possible extension to 33 years on a case-by-case basis. The 18 SSN-688 class submarines that will be refueled at their mid-life could make good candidates for a service life extension because they could operate for nearly 30 years after the refueling.

After these submarines serve for 30 years, they could undergo a 2-year overhaul and serve for one more 10-year operating cycle, for a total service life of 42 years. The cost for the additional overhaul of SSN-688 class submarines would be about $406 million per boat.

克里斯Chris

續:

Eight older Los Angeles-class submarines, without a vertical launch system, could be refueled at a cost of $210 million more than it would cost to inactivate them.

FY2000 - SSN 713 Houston
FY2001 - SSN 698 Bremerton
FY2001 - SSN 699 Jacksonville
FY2001 - SSN 714 Norfolk
FY2005 - SSN 716 Salt Lake City
FY2006 - SSN 717 Olympia
FY2007 - SSN 718 Honolulu
FY2008 - SSN 710 Augusta

These submarines can still be used in strike missions, however, by firing Tomahawk land attack missiles through their torpedo tubes.

The existing DOD guidance calls for a force of 50 attack submarines, although some studies have called for raising the number of subs to as many as 72. Existing plans are sufficient to meet the goal of 50 boats, although higher numbers would require modification to these plans. According to Navy secretary Richard Danzig, as of October 1999 the Joint Chiefs of Staff were studying options for increasing the size and capability of the submarine force. The three options under review include by converting older Ohio-class SSBN submarines to so-called SSGNs at a cost of $420 million; refueling and extending by 12 years the service life of perhaps eight Los Angeles-class (SSN 688) subs at a cost per copy of $200 million; or building new Virginia-class (SSN 774) subs at a rate of at least four over the next five years, at a cost of roughly $2 billion per boat. The FY2000 Defense Authorization bill requires the Navy to study converting four of the oldest Tridents to the new SSGN configuration.

The JCS Submarine Force Structure Study, completed in November 1999, concluded that the optimal force structure would be 68 attack submarines by 2015 and 76 by 2025, with the minimum being at least 55 by 2015 and 62 by 2025. The first would be to refuel some Los Angeles-class submarines previously scheduled to be decommissioned.

克里斯Chris

Specifications(數據)
Builders	Newport News Shipbuilding Co. General Dynamics Electric Boat Division.
Power Plant	One S6G reactor one shaft at 35,000 shp Improved Performance Machinery Program Phase I [on 688 Improved]
Length	360 feet (109.73 meters)
Beam	33 feet (10 meters)
Displacement	6,927 tons (6210 metric tons) submerged
Speed	Official: 20+ knots (23+ miles per hour, 36.8 +kph) Actual: 30-32 knots maximum submerged speed
Operating Depth	official: "greater than 800 feet" Actual: 950 feet [300 meters] test depth Actual: 1475 feet [450 meters] collapse depth
Hull	HY-80 Steel
Crew	13 Officers, 116 Enlisted Departments Combat Engineering Executive NAVOPS Medical Supply

克里斯Chris

Armament	Harpoon and Tomahawk ASM/LAM missiles from VLS tubes MK-48 torpedoes from four 533-mm torpedo tubes (Seawolf has 8)
Combat Systems	AN/BPS-5 surface search radar AN/BPS-15 A/16 navigation and fire control radar TB-16D passive towed sonar arrays TB-23 passive "thin line" towed array AN/BQG-5D wide aperture flank array AN/BQQ-5D/E low frequency spherical sonar array AN/BQS-15 close range active sonar (for ice detection); MIDAS Mine and Ice Detection Avoidance System SADS-TG active detection sonar Type 2 attack periscope (port) Type 18 search periscope (starboard) AN/BSY-1 (primary computer); UYK-7; UYK-43; UYK-44 WLR-9 Acoustic Intercept Receiver ESM
Unit Cost	$900 million [1990 prices]
Unit Operating Cost Annual Average	~$21,000,000 [source: [FY1996 VAMOSC]

克里斯Chris

Ships(同級潛艇)
Name	Number	Builder	Homeport	Ordered	Commissioned	Decommissioned
Los Angeles	SSN 688	Newport News	Pearl Harbor	08 Jan 1971	13 Nov 1976
Baton Rouge	SSN-689	Newport News	[url=http://fas.org/man/dod-101/fac/port/norfolk.htm]Norfolk[/url]	08 Jan 1971	25 Jun 1977	13 Jan 1995
Philadelphia	SSN 690	Electric Boat	Groton	08 Jan 1971	25 Jun 1977
Memphis	SSN 691	Newport News	Groton	04 Feb 1971	17 Dec 1977
Omaha	SSN-692	Electric Boat	Pearl Harbor	31 Jan 1971	11 Mar 1978	05 Oct 1995
Cincinnati	SSN-693	Newport News	Norfolk	04 Feb 1971	10 Jun 1978	29 Jul 1996
Groton	SSN-694	Electric Boat	Groton	31 Jan 1971	08 Jul 1978	07 Nov 1997
Birmingham	SSN-695	Newport News	Pearl Harbor	24 Jan 1972	16 Dec 1978	22 Dec 1997
New York City	SSN-696	Electric Boat	Pearl Harbor	24 Jan 1972	03 Mar 1979	30 Apr 1997
Indianapolis	SSN 697	Electric Boat	Pearl Harbor	24 Jan 1972	05 Jan 1980	17 Feb 1998
Bremerton	SSN 698	Electric Boat	Pearl Harbor	24 Jan 1972	28 Mar 1981	~2001
Jacksonville	SSN 699	Electric Boat	Norfolk	24 Jan 1972	16 May 1981	~2001
Dallas	SSN 700	Electric Boat	Groton	31 Jan 1973	26 Jun 1981
La Jolla	SSN 701	Electric Boat	San Diego	10 Dec 1973	30 Sep 1981

克里斯Chris

Phoenix	SSN-702	Electric Boat	Norfolk	31 Oct 1973	12 Dec 1981	29 Jul 1998
Boston	SSN 703	Electric Boat	Groton	10 Dec 1973	30 Jan 1982	18 Jan 1999
Baltimore	SSN 704	Electric Boat		31 Oct 1973	24 Jul 1982	10 Jul 1998
City Of Corpus Christi	SSN 705	Electric Boat	Groton	31 Oct 1973	08 Jan 1983
Albuquerque	SSN 706	Electric Boat	Groton	31 Oct 1973	21 May 1983
Portsmouth	SSN 707	Electric Boat	San Diego	10 Dec 1973	01 Oct 1983
Minneapolis-St. Paul	SSN 708	Electric Boat	Norfolk	31 Oct 1973	10 Mar 1984
Hyman G. Rickover	SSN 709	Electric Boat	Norfolk	10 Dec 1973	21 Jul 1984
Augusta	SSN 710	Electric Boat	Groton	31 Oct 1973	19 Jan 1985	~2008
San Francisco	SSN 711	Newport News	Pearl Harbor	01 Aug 1975	21 Apr 1984
Atlanta	SSN 712	Newport News	Norfolk	01 Aug 1975	06 Mar 1982	22 Jan 1999

克里斯Chris

Houston	SSN 713	Newport News	San Diego	01 Aug 1975	25 Sep 1982	~2000
Norfolk	SSN 714	Newport News	Norfolk	20 Feb 1976	21 May 1983	~2001
Buffalo	SSN 715	Newport News	Pearl Harbor	23 Feb 1976	05 Nov 1983
Salt Lake City	SSN 716	Newport News	San Diego	15 Sep 1977	12 May 1984	~2005
Olympia	SSN 717	Newport News	Pearl Harbor	15 Sep 1977	17 Nov 1984	~2006
Honolulu	SSN 718	Newport News	Pearl Harbor	15 Sep 1977	06 Jul 1985	~2007
Providence	SSN 719	Electric Boat	Groton	16 Apr 1977	27 Jul 1985
Pittsburgh	SSN 720	Electric Boat	Groton	16 Apr 1977	23 Nov 1985
Chicago	SSN 721	Newport News	Pearl Harbor	13 Aug 1981	27 Oct 1986
Key West	SSN 722	Newport News	Pearl Harbor	13 Aug 1981	12 Sep 1987
Oklahoma City	SSN 723	Newport News	Norfolk	13 Aug 1981	09 Jul 1988
Louisville	SSN 724	Electric Boat	Pearl Harbor	11 Feb 1981	08 Nov 1986
Helena	SSN 725	Electric Boat	Pearl Harbor	19 Apr 1982	11 Jul 1987
Newport News	SSN 750	Newport News	Norfolk	19 Apr 1982	03 Jun 1989