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Murasame-class destroyer (1994)

From Wikipedia, the free encyclopedia
For other ships with the same name, see Murasame-class destroyer (disambiguation).
JS Samidare in Pearl Harbor
Class overview
NameMurasame class
BuildersIHI Tokyo Shipyard and Japan Marine United
Operators Japan Maritime Self-Defense Force
Preceded byAsagiri class
Succeeded byTakanami class
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
Speed30 knots (35 mph; 56 km/h)
Complement165
Sensors and
processing systems
Electronic warfare
& decoys
Armament
Aircraft carried1 × SH-60J/K anti-submarine helicopter

The Murasame-class destroyer (むらさめ型護衛艦, Murasame-gata-goei-kan) is a class of destroyers serving with the Japan Maritime Self-Defense Force (JMSDF). This is the first class of the second-generation, general-purpose destroyers of the JMSDF.[1]

Background

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Since fiscal year 1977, the JMSDF started construction of general-purpose destroyers (汎用護衛艦, Hanyou-goei-kan) under the eight ships / eight helicopters concept.[2] In this concept, each flotilla would be composed of one helicopter destroyer (DDH), five general-purpose destroyers (DD), and two guided-missile destroyers (DDG).[3] By fiscal year 1986, construction of twenty first-generation DDs (twelve Hatsuyuki class and eight Asagiri class) required for all four flotillas had been completed.[2]

In the original plan, construction was supposed to shift to destroyer escorts, for local District Forces, afterwards. However, if the use of these first-generation DDs was continued to the full extent of the ship's lives, obsolescence was a concern. 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 for Kirisame, 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 the radar cross-section. There is, however, no angled tripod mainmast like the one on the American Arleigh Burke-class destroyer because of the heavy weather of the Sea of Japan in winter. The aft was designed like a "mini-Oranda-zaka" as with the Kongō class to avoid interference between helicopters and mooring devices.[4][Note 1]

The engine arrangement is COGAG, same as the Asagiri-class, but the pair of engines are updated to Spey SM1C. The remaining one pair are replaced by LM2500, same as the Kongō-class.[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 of Kongō class. Two large-screen displays and OJ-663 consoles are introduced in its OYQ-9 combat direction system as Aegis Weapon System (AWS). And OYQ-103 ASW combat systems, based on OYQ-102 of Kongō class and indirectly AN/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 and sonobuoys.[6]

The advanced OPS-24 active electronically scanned array radar and OPS-28 surface search and target acquisition radar introduced into the fleet with the latter batch of the Asagiri class remain on board, and there are some new systems like the NOLQ-3 electronic warfare suite and OQS-5 bow-mounted sonar.[4]

To enhance the low-observability and combat readiness capability, vertical launching systems were adopted on its missile systems: Mk 41 for VL-ASROC and Mk 48 for Sea Sparrow replace the traditional swivel octuple launchers. And the surface-to-surface missile system is alternated by the SSM-1B of Japanese make.[4] Currently, ships of this class have been switching the point defense missile system from the traditional Sea Sparrow (RIM-7M) to the Evolved Sea Sparrow by FY2012.[7]

The aircraft facility is expanded to accommodate two shipboard helicopters. One Mitsubishi SH-60J/K is 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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  • JS Murasame, JS Harusame, JS Yudachi and JS Kirisame in Pearl Harbor
    JS Murasame, JS Harusame, JS Yudachi and JS Kirisame in Pearl Harbor
  • JS Harusame
    JS Harusame
  • JS Inazuma
    JS Inazuma
  • JS Ariake
    JS Ariake
  • JS Ariake
    JS Ariake
  • JS Ikazuchi
    JS Ikazuchi
  • JS Ikazuchi
    JS Ikazuchi
  • Type 90 (SSM-1B) launcher of Murasame class
    Type 90 (SSM-1B) launcher of Murasame class
  • 76 mm 62 cal compact gun
    76 mm 62 cal compact gun

See also

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Notes

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

References

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  1. ^ a b Kōda 2015, pp. 220–223.
  2. ^ a b c Kōda 2015, pp. 188–207.
  3. ^ Kōda 2015, pp. 167–169.
  4. ^ a b c d Abe 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. NAID 40002155847.
  • 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. NAID 40005855328.
  • Yamazaki, Makoto (October 2011). "Combat systems of modern Japanese destroyers". Ships of the World (in Japanese) (748). Kaijin-sha: 98–107. NAID 40018965310.
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