:Akizuki-class destroyer (2010)
{{Short description|Class of the Japan Maritime Self-Defense Force}}
{{for multi|the World War II class of the same name|Akizuki-class destroyer (1942)|the earlier destroyer class of the JMSDF|Akizuki-class destroyer (1959)}}
| {{Infobox ship begin}}
{{Infobox ship image | Ship image = DD-115 Akizuki in Wakayama.jpg | Ship caption = DD-115 Akizuki in Wakayama }} {{Infobox ship class overview | Name = | Builders =
| Operators = {{navy|Japan}} | Class before = {{sclass|Takanami|destroyer|4}} | Class after = {{sclass|Asahi|destroyer|4}} | Subclasses = | Cost = *DD115: JPY84.4 billion{{Cite web|url=http://www.globalsecurity.org/military/world/japan/19dd.htm|title = DD115 19DD Akizuki - 5000 ton Destroyer}}
| Built range = 2009–2012 | In service range = | In commission range = 2012–present | Total ships building = | Total ships planned = 4 | Total ships completed = 4 | Total ships cancelled = | Total ships active = 4 | Total ships laid up = | Total ships lost = | Total ships retired = | Total ships preserved = }} {{Infobox ship characteristics | Hide header = | Header caption = | Ship class = | Ship type = Destroyer | Ship displacement = *5,000 tonnes standard
| Ship length = {{convert|150.5|m|ftin|abbr=on}} | Ship beam = {{convert|18.3|m|ftin|abbr=on}} | Ship height = | Ship draft = {{convert|5.3|m|ftin|abbr=on}} | Ship depth = {{convert|10.9|m|ftin|abbr=on}} | Ship hold depth = | Ship decks = | Ship deck clearance = | Ship power = | Ship propulsion = COGAG, two shafts, four Rolls-Royce Spey SM1C turbines | Ship speed = {{convert|30|kn|lk=in}} | Ship range = | Ship endurance = | Ship boats = | Ship troops = | Ship complement = 200 | Ship crew = | Ship sensors = *ATECS (advanced technology command system) | Ship armament = * 1 × Mk 45 Mod 4 5"/54 caliber Mark 45 gun
| Ship armor = | Ship aircraft = 1 × SH-60K helicopter | Ship aircraft facilities = | Ship notes = }} |
The Akizuki class of destroyers of the Japan Maritime Self-Defense Force is intended to escort the {{sclass|Hyūga|helicopter destroyer|0}} and {{sclass|Izumo|helicopter destroyer|0}} helicopter destroyers, and safeguard the other Aegis-capable warships such as the {{sclass|Kongō|destroyer|4}} and {{sclass|Atago|destroyer|4}}. The destroyer provides defense against surface, airborne and undersea threats. The class was initially designated as "19DD", referring to a date on the Japanese calendar, specifically the 19th fiscal year of the Heisei period (2007).
Design
File:JS Akizuki (DD-115) seen from Ōnami, -8 Oct. 2012 a.ogv
The hull structure was based on the one of the {{sclass|Takanami|destroyer|1}}s. There are many small improvements, such as cleaner lines to reduce the radar signature and decoys for torpedoes; but the principal changes can be summed up as more powerful engines, sensors, sonar and the indigenous ATECS battle management system that has been called the Japanese AEGIS. The main gas turbine engines are standardized on a higher-powered version of the Rolls-Royce Spey SM1C, in contrast to the combination of Rolls-Royce SM1C and General Electric LM2500 turbines used in the Takanami class.
Equipment
The purpose of this class is to shield the {{sclass|Kongō|destroyer|4}} from air, surface and subsurface threats. Main features of the class include enhanced C4ISR and Anti-Aircraft Warfare (AAW) capability, with an OYQ-11 advanced Combat Direction Sub-system (CDS) and FCS-3A AAW weapon sub-system.{{Cite journal|author=SOW editorial office|date=November 2010|title=Technical characteristics of 19DD|journal=Ships of the World|issue=732|pages=84–99|publisher=Kaijinn-sha}}
;OYQ-11
:This is the first CDS adopting a fully distributed computing architecture to be implemented in general-purpose destroyers of the JMSDF. AN/UYQ-70 workstations form the basic computing platform, with Link 16 datalinks. In addition to the CDS, this class is equipped with SATCOM terminals linked to Superbird satellites, part of the Maritime Operation Force (MOF) system. The MOF system is the operational C4I system used in the fleet of the JMSDF, based on the ILOG architecture and interoperable with other JSDF forces. There are also USC-42 DAMA terminals for GCCS-M, the American counterpart of the MOF system.{{Cite journal|author=Makoto Yamazaki|date=October 2011|title=Combat systems of modern Japanese destroyers|journal=Ships of the World|issue=748|pages=98–107|publisher=Kaijin-sha}}
;FCS-3A
:This is a domestically developed AAW combat system. It consists of two main components, one is a dual-band and multimode active electronically scanned array radar, and the other is the fire-control system. The FCS-3A is the derivative of the FCS-3 of the {{sclass|Hyūga|helicopter destroyer|2}}, changing material of its transmitter-receiver modules from gallium arsenide to gallium nitride and introducing additional Local Area Defense (LAD) capability. An ESSM SAM VLS is integrated with the FCS-3A.{{Cite journal|date=March 2010|author=Keiichi Nogi|title=1. Missiles (Shipboard weapons of JMSDF 1952-2010)|journal=Ships of the World|issue=721|pages=82–87|publisher=Kaijin-sha}}
Anti-submarine and Electronic Warfare (EW) capabilities of the Akizuki class have been enhanced, with a new OQQ-22 integrated sonar suite sub-system (hull-sonar and OQR-3 towed array; - a Japanese equivalent of the American AN/SQQ-89), and the NOLQ-3D digitalized EW suite sub-system. These sub-systems communicate across a NOYQ-1B wide area network. These systems are comparable to those of the {{sclass|Zumwalt|destroyer|2}}.
Gallery
File:JS_Akizuki_(DD-115)_-_starboard_view.jpg|Starboard view JS Akizuki
File:JS_Akizuki_(DD-115)_-_bow_view.jpg|Bow view
File:DD115.JPG|Bridge detail with 2 AESA arrays
File:Teruzuki (DD-116), Sawayuki (DD-125) en Asuka (ASE-6102) aan de Yoshikura Pier, -2 Jun. 2013 b.jpg| JS Teruzuki at Yokosuka naval base, 2013
File:DD-116Teruduki&DD117Suzutuki.JPG|JS Teruzuki (DD-116) and JS Suzutuki (DD-117) at Nagasaki shipyard
Ships in the class
| class=wikitable
! Building no. | Pennant no. | Name/Namesake | Laid down | Launched | Commissioned | Shipyard |
| 2244 | DD-115 | Akizuki (Autumn Moon)
| 17 July 2009 | 13 October 2010
| 14 March 2012 | MHI, Nagasaki | ||
| 2245 | DD-116 | Teruzuki (Bright Moon)
| 2 June 2010 | 15 September 2011 | 7 March 2013 | MHI, Nagasaki | |
| 2246 | DD-117 | Suzutsuki (Clear Moon)
| 18 May 2011 | 17 October 2012
| 12 March 2014 | MHI, Nagasaki | ||
| 2247 | DD-118 | Fuyuzuki (Winter Moon)
| 14 June 2011 | 22 August 2012
| 13 March 2014 | Mitsui, Tamano |
References
{{Reflist}}
External links
{{Commons category|Akizuki class destroyers (2010)}}
- Ministry of Defense {{lang|ja|平成18年度 事前の事業評価}} (2006 Prior enterprise evaluation) (Japanese)
- [https://web.archive.org/web/20070307062041/http://www.mod.go.jp/j/info/hyouka/18/jizen/youshi/01.pdf Summary]
- [https://web.archive.org/web/20070307061952/http://www.mod.go.jp/j/info/hyouka/18/jizen/sankou/01.pdf Reference]
- [https://web.archive.org/web/20070930211720/http://www.mod.go.jp/j/info/hyouka/18/jizen/honbun/01.pdf Prior evaluation note]
{{Akizuki-class destroyer (2010)}}
{{Combatant ship classes of the Japan Maritime Self-Defense Force}}
{{Mitsubishi Heavy Industries}}