View source for Ayanami-class destroyer

{{Short description|1957 class of Japanese destroyers}}
{{distinguish|Fubuki-class destroyer#Type II (Ayanami)}}
{|{{Infobox ship begin}}
{{Infobox ship image
|Ship image=JS Ayanami (DD-103).png
|Ship caption=''Ayanami'' class member {{JDS|Ayanami|DD-103|2}}
}}
{{Infobox ship class overview
|Name=''Ayanami'' class
|Builders=
*[[Hitachi Zosen]] (1)
*[[IHI Corporation|Ishikawajima Heavy Industries]] (1)
*[[Kawasaki Heavy Industries|Kawasaki Dockyard Co.]] (1)
*[[Mitsubishi Heavy Industries|Mitsubishi Shipbuilding & Eng.]]
**Nagasaki Shipyard (1)
**Kobe Shipyard (1)
*[[Mitsui Engineering & Shipbuilding|Mitsui Shipbuilding & Eng.]] (2)
|Operators={{navy|Japan}}
|Class before={{sclass|Harukaze|destroyer|4}}
|Class after={{sclass|Murasame|destroyer (1958)|4}}
|Subclasses=
|Cost=
|Built range=1956&ndash;1960
|In service range=
|In commission range=1958&ndash;1990
|Total ships completed=7
|Total ships retired=7
}}
{{Infobox ship characteristics
|Hide header=
|Header caption=
|Ship type=[[Destroyer]]
|Ship displacement=*{{convert|1720|t|LT|lk=out|abbr=on}} standard
*{{convert|2500|t|LT|abbr=on}} full load
|Ship length= {{convert|109|m|abbr=on}}
|Ship beam= {{convert|10.7|m|abbr=on}}
|Ship depth= {{convert|8.1|m|ftin|abbr=on}}
|Ship propulsion=
|Ship speed= 
|Ship range= 
|Ship endurance=
|Ship boats=
|Ship troops=
|Ship complement=220
|Ship sensors= *[[AN/SPS-6|AN/SPS-12]] [[Air search radar|air-search radar]]
*[[AN/SPS-5|OPS-5]] [[surface-search radar]]
*[[AN/SPS-6|AN/SPS-11A]]
*[[OQA-1]] [[Variable Depth Sonar|variable depth sonar]]
*[[Mark 63 Gun Fire Control System|Mark 63]] [[fire-control system]]
|Ship EW= [[NOLR-1]]
|Ship armament=*6 × [[3"/50 caliber gun|3"/50 caliber Mk.22 guns]]
*4 × {{convert|533|mm|in|0|abbr=on}} [[torpedo tube]]s
*2 × [[Anti-submarine warfare|ASW]] [[torpedo]] racks
*2 × [[Hedgehog (weapon)|Hedgehog]] [[anti-submarine mortar]]s
*2 × DCT (K-guns)
|Ship armor=
|Ship notes=
}}
|}
The '''''Ayanami'' class''' was a [[destroyer]] [[Ship class|class]] built for the [[Japan Maritime Self-Defense Force]] (JMSDF) in the late 1950s. The primary purpose was [[anti-submarine warfare]], so this class was classified as "DDK" (hunter-killer anti-submarine destroyer) unofficially.<ref name="destroyer">{{Cite journal|date=June 2011|title=History of Japanese destroyers since 1952|journal=[[:ja:世界の艦船|Ships of the World]]|issue=742|pages=91–97|publisher=Kaijin-sha|language=Japanese}}</ref>

==Design==
This class adopted a "long forecastle" design with inclined afterdeck called [[:ja:オランダ坂|"Holland Slope"]], named after the [[Groups of Traditional Buildings|scenic sloping street]] in [[Nagasaki]] City.<ref name="design">{{Cite journal|date=June 2011|title=1. Hull (Hardware of JMSDF destroyers)|journal=Ships of the World|issue=742|pages=100–105|publisher=Kaijin-sha|language=Japanese}}</ref> Their [[steam turbine]] propulsion systems were similar to the ones of the {{sclass|Harukaze|destroyer|4}}, but they varied between each ship in the class as part of the JMSDF's attempt to find the best propulsion system for its future surface combatants.<ref name="propulsion">{{Cite journal|author=Yasuo Abe|date=June 2011|title=2. Propulsion system (Hardware of JMSDF destroyers)|journal=Ships of the World|issue=742|pages=106–111|publisher=Kaijin-sha|language=Japanese}}</ref>

The ''Ayanami'' class were the first JMSDF vessels equipped with six [[3"/50 caliber gun|3-inch/50 caliber Mark 22 guns]] with Mark 33 dual mounts and Mark 32 lightweight [[torpedo]]es with two Mark 2 over-the-side launchers.<ref name="underwater">{{Cite journal|date=March 2010|title=3. Underwater weapons (Shipboard weapons of JMSDF 1952-2010)|journal=Ships of the World|issue=721|pages=94–99|publisher=Kaijin-sha}}</ref> 3-inch guns were controlled by two Mark 63 GFCSs.<ref name="gun">{{Cite journal|date=March 2010|title=2. Guns (Shipboard weapons of JMSDF 1952-2010)|journal=Ships of the World|issue=721|pages=88–93|publisher=Kaijin-sha}}</ref>

All seven vessels names had previously been borne by ships of the World War II-era {{sclass|Fubuki|destroyer|5}} and {{sclass|Yūgumo|destroyer|2}} classes.

{|class=wikitable
|+ Ships in the class
! Pennant no. || Name ||Builder<ref name="conways p223"/> || Laid down<ref name="conways p223">Gardiner and Chumbley 1995, p. 223.</ref>|| Launched<ref name="conways p223"/> || Commissioned <ref name="conways p223"/>|| Decommissioned<ref name="conways p223"/>
|-
| DD-103/ASU-7004
| {{JDS|Ayanami||2}}
| Mitsubishi Zosen, [[Nagasaki]]
| 20 November 1956 || 1 June 1957 || 12 February 1958 || 25 December 1986
|-
| DD-104/TV-3502
| {{JDS|Isonami||2}}
|Shin-Mitsubishi, [[Kobe]]
| 14 December 1956 || 30 September 1957 || 14 March 1958 || 1 July 1987
|-
| DD-105/ASU-7005
| {{JDS|Uranami||2}}
|Kawasaki, [[Tokyo]]
| 1 February 1957 || 29 August 1957 || 27 February 1958 || 25 December 1986
|-
| DD-106/TV-3503
| {{JDS|Shikinami||2}}
| [[Mitsui Engineering & Shipbuilding|Mitsui Zosen]], [[Tamano, Okayama|Tamano]]
| 14 December 1956 || 25 September 1957 || 15 March 1958 || 1 July 1987
|-
| DD-110/ASU-7009
| [[JDS Takanami|''Takanami'']]
| Mitsui Zosen, Tamano
| 8 November 1958 || 8 August 1959 || 30 January 1960 || 1 March 1989
|-
| DD-111/ASU-7013
| [[JDS Ōnami|''Ōnami'']] or ''Oonami''<ref name="Romanization1">Sometimes ''Oonami'' depending on [[Romanization of Japanese|romanization]]</ref>
| [[IHI Corporation|Ishikawajima HI]], Kobe
| 20 March 1959 || 13 February 1960 || 29 August 1960 || 1 March 1990
|-
| DD-112/ASU-7014
| [[JDS Makinami|''Makinami'']]
|Iono HI, [[Maizuru, Kyoto|Maizuru]]
| 20 March 1959 || 25 April 1960 || 28 October 1960 || 1 March 1990
|}

==Notes==
{{reflist}}

==References==
*{{cite book|last1=Gardiner|first1=Robert|last2=Chumbley|first2=Stephen|title=Conway's All The World's Fighting Ships 1947–1995|year=1995|publisher=Naval Institute Press|location=Annapolis, Maryland, USA|isbn=1-55750-132-7}}

{{Ayanami class destroyers}}
{{Combatant ship classes of the Japan Maritime Self-Defense Force}}

[[Category:Ayanami-class destroyers| ]]
[[Category:Destroyer classes]]