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Asagiri-class destroyer

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JS Yugiri anchored in the Solent, as part of the Trafalgar 200 celebrations.
JS Yūgiri anchored in the Solent
Class overview
Builders
OperatorsJMSDF
Preceded byTemplate:Sclass-
Succeeded byMurasame-class destroyer
Built1986–1989
In commission1986–
Completed8
Active8
General characteristics
Displacement3,500 tons standard, 4,900 tons hull load
Length137 m (449 ft 6 in)
Beam14.6 m (47 ft 11 in)
Draft4.5 m (14 ft 9 in)
Depth8.8 m (28 ft 10 in)
Propulsion4 gas turbines 54,000 shaft horsepower
Speed30 knots (56 km/h)
Range8,030 nmi (14,870 km) at 14 kn (26 km/h)
Complement220
Sensors and
processing systems
  • OYQ-6/7 CDS (w/ Link-11)
  • OPS-14/24 Air search radar
  • OPS-28 surface search radar
  • OQS-4A hull sonar
  • OQR-1 TACTASS
Electronic warfare
& decoys
Armament
Aircraft carried1 × SH-60J(K) anti-submarine helicopter

The Asagiri-class destroyer was built during the 1980s for service with the Japanese Maritime Self Defense Force.

This class of general purpose destroyer is an extended version of its predecessor Template:Sclass-s, and is mainly tasked with ASW and ASUW. The Asagiri-class vessels feature several enhancements and/or improvements over the Hatusyuki class, such as:

COGAG Propulsion System.
Compared with the COGOG propulsion system of the Hatsuyuki class, this class has the COGAG propulsion system with enhanced capacity. The COGAG propulsion system is composed of four Kawasaki-Rolls-Royce Spey SM1A gas turbines.[1]
Advanced radar systems.
This class is equipped with the OPS-28 surface search radar. The OPS-28 is analogous to the American Target Acquisition System Mk.23 with the Track while scan capability. Later ships of this class introduced the OPS-24 air search 3D radar. The OPS-24 is the first shipboard active electronically scanned array radar in the world.[2]
Full-configuration destroyer CDS.
The earlier batch was equipped the OYQ-6 combat direction system (CDS). This system employed one AN/UYK-20 computer as the same as OYQ-5 tactical data processing system of the Hatsuyuki class, but it can exchange tactical data via Link-11, which the OYQ-5 does not support. Later, all OYQ-6 systems were upgraded to the OYQ-7, integrated with OYQ-101 ASW Direction System.[3]
All ships of this class were later retrofitted with the terminal for the MOF system, the key operational C4I system of the JMSDF which uses the Superbird SHF-SATCOM.[3]
Enlarged aircraft facility.
The hangar is enlarged in order to accommodate two helicopters, but generally only one helicopter is used operationally.[4]

Asagiri, Yūgiri, and Amagiri were named after World War II destroyers. Amagiri's World War II namesake rammed and sank PT-109.

The Yamagiri and Asagiri have been converted into training vessels.

Ships in the class

Pennant no. Name Laid down Launched Commissioned Builder Home port Note
DD-151
TV-3516		 Asagiri 19 September 1986 1988 IHI Corporation, Tokyo Kure 　 Converted to training vessel (TV-3516) on 16 February 2005
re-converted to DD-151 on March 2012
DD-152
TV-3515		 Yamagiri 10 October 1987 1989 Mitsui, Tamano Kure 　 Converted to training vessel (TV-3515) on 18 March 2004,
re-converted to DD-152 on March 2011
DD-153 Yūgiri 21 September 1987 1989 Sumitomo Heavy Industries Uraga Shipyard Ominato 　 Involved in the June 3rd, 1996 accidental shootdown of a USN A-6E Intruder, during a life-fire CIWS exercise (part of RIMPAC '96). Aircrew ejected safely and were subsequently rescued by the Yūgiri. Though a malfunction in the Phalanx CIWS was initially implicated as the cause of the incident, human error was later blamed.
DD-154 Amagiri 9 September 1987[5] 28 February 1989[5] IHI Corporation Maizuru 　
DD-155 Hamagiri 4 June 1988 1990 Hitachi, Maizuru Ominato 　
DD-156 Setogiri 12 September 1988 1990 Hitachi, Maizuru Ominato 　
DD-157 Sawagiri 25 December 1988 1990 Mitsubishi Heavy Industries Nagasaki Shipyard Sasebo 　
DD-158 Umigiri 11 September 1989 1991 IHI Corporation Kure 　

References

  1. ^ Yasuo Abe (June 2011). "2. Propulsion system (Hardware of JMSDF destroyers)". Ships of the World (in Japanese) (742). Kaijin-sha: 106–111.
  2. ^ Tomohiko Tada (March 2010). "4. Radar/ECM/ESM (Shipboard weapons of JMSDF 1952-2010)". Ships of the World (in Japanese) (721). Kaijin-sha: 100–105.
  3. ^ a b Makoto Yamazaki (October 2011). "Combat systems of modern Japanese destroyers". Ships of the World (in Japanese) (748). Kaijin-sha: 98–107.
  4. ^ "History of Japanese destroyers since 1952". Ships of the World (in Japanese) (742). Kaijin-sha: 91–97. June 2011.
  5. ^ a b "Asagiri class Destroyer - DD". seaforces.org. Retrieved 11 December 2014.
  • Heihachiro Fujiki (August 2003). "Development of multi-purpose DDs for "8-8 escort flotilla". Ships of the World (in Japanese) (614). Kaijinn-sha: 94–99.
  • JDS Asagiri (DD-151)
    JDS Asagiri (DD-151)
  • JDS Yūgiri (DD-153)
    JDS Yūgiri (DD-153)
  • JDS Amagiri (DD-154)
    JDS Amagiri (DD-154)
  • JDS Sawagiri (DD-157)
    JDS Sawagiri (DD-157)
  • JDS Asagiri (TV-3516)
    JDS Asagiri (TV-3516)
  • JDS Umigiri (DD-158)
    JDS Umigiri (DD-158)
  • The hangar deck of JDS Umigiri (DD-158)
    The hangar deck of JDS Umigiri (DD-158)
  • JDS Umigiri (DD-158)
    JDS Umigiri (DD-158)
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