Murasame-class destroyer (1994)

TheMurasame-class destroyer(むらさめ hình tàu bảo vệ,Murasame-gata-goei-kan)is a class ofdestroyers,serving with theJapan Maritime Self-Defense Force(JMSDF). This is the first class of the second-generation general-purpose destroyers of the JMSDF.[1]

JSSamidarein Pearl Harbor
Class overview
NameMurasameclass
BuildersIHITokyo Shipyard and Japan Marine United
OperatorsJapan Maritime Self-Defense Force
Preceded byAsagiriclass
Succeeded byTakanamiclass
Built1993–2000
In commission1996–present
Planned14
Completed9
Cancelled5
Active9
General characteristics
TypeGeneral-purpose destroyer
Displacement
  • 4,550 tons standard,
  • 6,200 tons full load
Length151 m (495 ft 5 in)
Beam17.4 m (57 ft 1 in)
Draft5.2 m (17 ft 1 in)
Propulsion
Speed30knots(35 mph; 56 km/h)
Complement165
Sensors and
processing systems
Electronic warfare
& decoys
Armament
Aircraft carried1 ×SH-60J/Kanti-submarine helicopter

Background

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Since FY1977, the JMSDF started construction of general-purpose destroyers(Phiếm dùng tàu bảo vệ,Hanyou-goei-kan)under the eight ships / eight helicopters concept.[2]In this concept, each flotillas would be composed of onehelicopter destroyer (DDH),five general-purpose destroyers (DD), and twoguided-missile destroyers(DDG).[3]By FY1986, construction of twenty first-generation DDs (twelveHatsuyukiclassand eightAsagiriclass) required for all four flotillas had been completed.[2]

In the original plan, it was supposed to shift todestroyer escortsfor localDistrict Forcesafterwards. However, if the use of these first-generation DDs was continued to the full extent of ships' life, the relative performance obsolescence was concerned. Thus the JMSDF decided to advance the construction of the new generation DDs. And this was the first class of the second-generation DDs.[1]

Except forKirisame,all ships of the class are named after Imperial Japanese Navy destroyers in World War II.

Design

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The hull design was completely renovated from first-generation DDs. In addition to increasing the size in order to reduce the underwater radiation noise, both superstructure and hull were inclined to reduce theradar cross-section.There is however no angled tripod mainmast like the one of the AmericanArleigh Burke-class destroyerbecause of the heavy weather of theSea of Japanin winter. The aft was designed like a "mini-Oranda-zaka"as with theKongōclassto avoid interference between helicopters andmooringdevices.[4][Note 1]

The engine arrangement isCOGAGas same asAsagiriclass, but a pair of engines are updated toSpey SM1C.And the remaining one pair are replaced byLM2500,same asKongōclass.[4]

Equipment

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The basic configuration of the equipment is the same as first-generation DDs, but they are updated and enhanced throughout. Concepts of its combat system were partly based on those ofKongōclass. Two large-screen displays and OJ-663 consoles are introduced in its OYQ-9 combat direction system asAegis Weapon System (AWS).And OYQ-103 ASW combat systems, based on OYQ-102 ofKongōclass and indirectlyAN/SQQ-89,present an integrated picture of the tactical situation by receiving, combining, and processing active and passive sensor data from the hull-mounted array, towed array andsonobuoys.[6]

The advancedOPS-24active electronically scanned arrayradar and OPS-28 surface search and target acquisition radar introduced into the fleet with the latter batch of theAsagiriclassremain on board, and there are some new systems like the NOLQ-3electronic warfaresuite and OQS-5 bow-mounted sonar.[4]

To enhance the low-observability and combat readiness capability,vertical launching systemswere adopted on its missile systems: Mk 41 forVL-ASROCand Mk 48 forSea Sparrowreplace the traditional swivel octuple launchers. And thesurface-to-surface missilesystem is alternated by theSSM-1Bof Japanese make.[4]Currently, ships of this class have been switching the point defense missile system from the traditionalSea Sparrow(RIM-7M) to theEvolved Sea Sparrowby FY2012.[7]

The aircraft facility is expanded to accommodate twoshipboard helicopters.OneMitsubishi SH-60J/Kis a basic load, and another can be accommodated in case of overseas operation.[2]

Ships in the class

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Pennant no. Name Laid down Launched Commissioned Homeport
DD-101 Murasame(Village Rain) 18 August 1993 23 August 1994 12 March 1996 Yokosuka
DD-102 Harusame(Spring Rain) 11 August 1994 16 October 1995 24 March 1997 Sasebo
DD-103 Yūdachi(Evening Downpour) 18 March 1996 19 August 1997 4 March 1999 Ominato
DD-104 Kirisame(Drizzle) 3 April 1996 21 August 1997 18 March 1999 Headquarters:Kure
Home port:Sasebo
DD-105 Inazuma(Sudden Lightning) 8 May 1997 9 September 1998 15 March 2000 Kure
DD-106 Samidare(Poetic term for the Rainy Season) 11 September 1997 24 September 1998 21 March 2000 Kure
DD-107 Ikazuchi(Ferocious Thunder) 25 February 1998 24 June 1999 14 March 2001 Yokosuka
DD-108 Akebono(Light of Daybreak) 29 October 1999 25 September 2000 19 March 2002 Kure
DD-109 Ariake(Daybreak) 18 May 1999 16 October 2000 6 March 2002 Sasebo
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See also

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Notes

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  1. ^Destroyers built under the First Defense Build-up Plan, including the formerMurasameclass,adopted a unique long forecastle style called "Oranda-zaka".[5]

References

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  1. ^abKōda 2015,pp. 220–223.
  2. ^abcKōda 2015,pp. 188–207.
  3. ^Kōda 2015,pp. 167–169.
  4. ^abcdAbe 2000,pp. 152–157.
  5. ^Abe 2000,pp. 54–68.
  6. ^Yamazaki 2011.
  7. ^Ministry of Defense,ed. (2011).Administrative review sheet for FY2011(PDF)(Report) (in Japanese).

Books

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Articles

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  • Abe, Yasuo (July 2000). "History of JMSDF Destroyers".Ships of the World(in Japanese) (571). Kaijinn-sha.NAID40002155847.
  • Fujiki, Heihachiro (August 2003). "Development of multi-purpose DDs for" 8-8 escort flotilla ".Ships of the World(in Japanese) (614). Kaijinn-sha:94–99.NAID40005855328.
  • Yamazaki, Makoto (October 2011). "Combat systems of modern Japanese destroyers".Ships of the World(in Japanese) (748). Kaijin-sha:98–107.NAID40018965310.
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