The procurement of the destroyer began in 2013 in response to the reduction in the number of destroyers (namely the Hatsuyuki class) within the JMSDF. The two major characteristics of this destroyer is its bigger emphasis on anti-submarine warfare and the adoption of the COGLAG (combined gas turbine electric and gas turbine: a modification of the combined gas and gas propulsion system employing electric propulsion system for low-speed cruising) propulsion system. A second destroyer was procured a year later.[3][4]
Design
The Asahi class is based on the existing Akizuki-class destroyer to reduce acquisition cost and allow future development and growth. Unlike the Akizuki class (which focuses on anti-aircraft warfare) the Asahi class focuses on anti-submarine warfare.[5]
Features
The Asahi class is the first Japanese warship to be equipped with a COGLAG propulsion system. This allows the destroyer to be more fuel efficient than previous warships. Another unique feature about this destroyer is the usage of a GaN-AESA (gallium nitride - active electronically scanned array) Multifunction Radar. The Asahi class is the second Japanese class of warship to be outfitted with this technology (the Akizuki class was the first). The destroyer's radar is based on the FCS-3A radar used for the Akizuki class and uses gallium nitride to improve performance.[5] In radar technology, gallium nitride offers a number of advantages over the traditionally used gallium arsenide (GaA). These advantages include higher power density, efficiency, thermal spreading and frequency coverage. This in turn allows the GaN chip to be smaller than their GaA counterpart, thus reducing cost and increasing overall cost effectiveness.[6]
Wikimedia Commons has media related to Asahi class destroyers (2016).
^Pike, John. "25DD Multipurpose Destroyer". globalsecurity.org. Retrieved 20 March 2018.
^Gady, Franz-Stefan (6 March 2019). "Japan Commissions New Anti-Submarine Warfare Destroyer". The Diplomat. from the original on 2019-03-06. Retrieved 28 April 2021.
^(PDF). Japan Ministry of Defense. January 2013. Archived from the original (PDF) on 19 October 2013. Retrieved 8 January 2019.
^(PDF). Japan Ministry of Defense. December 2013. Archived from the original (PDF) on 2 March 2014. Retrieved 8 January 2019.
^ ab"First JMSDF 25DD-class Asahi ASW Destroyer Started Sea Trials". Navy Recognition. 27 July 2017. Retrieved 8 January 2019.
^Whelan, Colin S.; Kolias, Nicholas J.; Brierley, Steven; MacDonald, Chris & Bernstein, Steven (23–26 April 2012). "GaN Technology for Radars" (PDF). pairserver. Retrieved 8 January 2019.
May 04, 2023
asahi, class, destroyer, asahi, class, destroyers, japan, maritime, self, defense, force, optimized, undersea, warfare, class, initially, designated, 25dd, referring, date, japanese, calendar, specifically, 25th, fiscal, year, heisei, period, 2013, shiranui, c. The Asahi class of destroyers of the Japan Maritime Self Defense Force is optimized for undersea warfare The class was initially designated 25DD referring to a date on the Japanese calendar specifically the 25th fiscal year of the Heisei period 2013 JS Shiranui DD 120 Class overviewBuildersMitsubishi Heavy IndustriesOperators Japan Maritime Self Defense ForcePreceded byAkizuki classCostDD119 JPY72 3 billion 1 893 million constant 2009 USD Built2015 2019In service2018 presentIn commission2018 presentCompleted2 2 Active2General characteristicsTypeDestroyerDisplacement5 100 t 5 000 long tons standard 6 800 t 6 700 long tons full loadLength151 m 495 ft 5 in Beam18 3 m 60 ft 0 in Draft5 4 m 17 ft 9 in Depth10 9 m 35 ft 9 in PropulsionCOGLAG two shafts two GE LM2500 turbinesSpeed30 knots 56 km h 35 mph Complement230Sensors and processing systemsOYQ 13 ACDS FCS 3A AAW system OPY 1 AAW system OQQ 24 ASW system OQR 4 Towed sonar array system NOLQ 3D 2 EW system OPS 48 surface search radarArmament1 Mk 45 Mod 4 127 mm 5 in 62 gun 8 Type 90 Anti ship missile in quad canisters 2 20 mm Phalanx Block1B CIWS 2 HOS 303 triple 324 mm 12 8 in torpedo tubes Anti torpedo System 32 cell Mk 41 Vertical launching system RIM 162 ESSM SAM RUM 139 VL ASROC Type 07 VL ASROCAircraft carried1 SH 60K helicopterThe lead ship Asahi is the third ship to hold the name after the Asahi class destroyer escort lent from the United States Navy in 1955 and the Imperial Japanese battleship The second ship of the class Shiranui is the third ship to hold the name after the Murakumo and Kagerō class destroyers Contents 1 Development 2 Design 2 1 Features 3 Ships in the class 4 ReferencesDevelopment EditThe procurement of the destroyer began in 2013 in response to the reduction in the number of destroyers namely the Hatsuyuki class within the JMSDF The two major characteristics of this destroyer is its bigger emphasis on anti submarine warfare and the adoption of the COGLAG combined gas turbine electric and gas turbine a modification of the combined gas and gas propulsion system employing electric propulsion system for low speed cruising propulsion system A second destroyer was procured a year later 3 4 Design EditThe Asahi class is based on the existing Akizuki class destroyer to reduce acquisition cost and allow future development and growth Unlike the Akizuki class which focuses on anti aircraft warfare the Asahi class focuses on anti submarine warfare 5 Features Edit The Asahi class is the first Japanese warship to be equipped with a COGLAG propulsion system This allows the destroyer to be more fuel efficient than previous warships Another unique feature about this destroyer is the usage of a GaN AESA gallium nitride active electronically scanned array Multifunction Radar The Asahi class is the second Japanese class of warship to be outfitted with this technology the Akizuki class was the first The destroyer s radar is based on the FCS 3A radar used for the Akizuki class and uses gallium nitride to improve performance 5 In radar technology gallium nitride offers a number of advantages over the traditionally used gallium arsenide GaA These advantages include higher power density efficiency thermal spreading and frequency coverage This in turn allows the GaN chip to be smaller than their GaA counterpart thus reducing cost and increasing overall cost effectiveness 6 Ships in the class EditBuilding no Pennant no Name Namesake Laid down Launched Commissioned Shipyard1613 DD 119 Asahi Morning Sun 4 August 2015 19 October 2016 7 March 2018 MHI Nagasaki1614 DD 120 Shiranui Phosphorescent Light 20 May 2016 12 October 2017 27 February 2019 MHI NagasakiReferences Edit Wikimedia Commons has media related to Asahi class destroyers 2016 Pike John 25DD Multipurpose Destroyer globalsecurity org Retrieved 20 March 2018 Gady Franz Stefan 6 March 2019 Japan Commissions New Anti Submarine Warfare Destroyer The Diplomat Archived from the original on 2019 03 06 Retrieved 28 April 2021 Defense Programs and Budget of Japan Overview of FY2013 Budget PDF Japan Ministry of Defense January 2013 Archived from the original PDF on 19 October 2013 Retrieved 8 January 2019 Defense Programs and Budget of Japan Overview of FY2014 Budget PDF Japan Ministry of Defense December 2013 Archived from the original PDF on 2 March 2014 Retrieved 8 January 2019 a b First JMSDF 25DD class Asahi ASW Destroyer Started Sea Trials Navy Recognition 27 July 2017 Retrieved 8 January 2019 Whelan Colin S Kolias Nicholas J Brierley Steven MacDonald Chris amp Bernstein Steven 23 26 April 2012 GaN Technology for Radars PDF pairserver Retrieved 8 January 2019 Retrieved from https en wikipedia org w index php title Asahi class destroyer amp oldid 1143901477, wikipedia, wiki, book, books, library,
