Ayanami-class destroyer explained

The Ayanami class was a destroyer 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.[1]

Design

This class adopted a "long forecastle" design with inclined afterdeck called "Holland Slope", named after the scenic sloping street in Nagasaki City.[2] Their steam turbine propulsion systems were similar to the ones of the, 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.[3]

The Ayanami class were the first JMSDF vessels equipped with six 3-inch/50 caliber Mark 22 guns with Mark 33 dual mounts and Mark 32 lightweight torpedoes with two Mark 2 over-the-side launchers.[4] 3-inch guns were controlled by two Mark 63 GFCSs.[5]

All seven vessels names had previously been borne by ships of the World War II-era and classes.

Name Builder Laid down[6] Launched Commissioned Decommissioned
DD-103/ASU-7004Mitsubishi Zosen, Nagasaki20 November 1956 1 June 1957 12 February 1958 25 December 1986
DD-104/TV-3502Shin-Mitsubishi, Kobe14 December 1956 30 September 1957 14 March 1958 1 July 1987
DD-105/ASU-7005Kawasaki, Tokyo1 February 1957 29 August 1957 27 February 1958 25 December 1986
DD-106/TV-3503Mitsui Zosen, Tamano14 December 1956 25 September 1957 15 March 1958 1 July 1987
DD-110/ASU-7009TakanamiMitsui Zosen, Tamano8 November 1958 8 August 1959 30 January 1960 1 March 1989
DD-111/ASU-7013Ōnami or Oonami[7] Ishikawajima HI, Kobe20 March 1959 13 February 1960 29 August 1960 1 March 1990
DD-112/ASU-7014MakinamiIono HI, Maizuru20 March 1959 25 April 1960 28 October 1960 1 March 1990

References

Notes and References

  1. June 2011. History of Japanese destroyers since 1952. Ships of the World. 742. 91–97. Kaijin-sha. Japanese.
  2. June 2011. 1. Hull (Hardware of JMSDF destroyers). Ships of the World. 742. 100–105. Kaijin-sha. Japanese.
  3. Yasuo Abe. June 2011. 2. Propulsion system (Hardware of JMSDF destroyers). Ships of the World. 742. 106–111. Kaijin-sha. Japanese.
  4. March 2010. 3. Underwater weapons (Shipboard weapons of JMSDF 1952-2010). Ships of the World. 721. 94–99. Kaijin-sha.
  5. March 2010. 2. Guns (Shipboard weapons of JMSDF 1952-2010). Ships of the World. 721. 88–93. Kaijin-sha.
  6. Gardiner and Chumbley 1995, p. 223.
  7. Sometimes Oonami depending on romanization

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