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Home»News»JMSDF to Put its Latest Aegis Destroyer JS Maya through its Paces
JS Maya. JMSDF picture.
JMSDF To Put Its Latest Aegis Destroyer JS Maya Through Its Paces
According to a document released by the Japan Maritime Self-Defense Force (JMSDF), the Guided Missile Destroyer JS Maya (DDG-179)「まや」 and her crew will undergo a "capability test".
Yoshihiro Inaba 13 May 2020
Story by Yoshihiro Inaba with additional reporting by Xavier Vavasseur
The Maya is JMSDF’s seventh Aegis ship, a state-of-the-art destroyer that was just commissioned in March 2020.The capability test that will be conducted is an evaluation that vessels are required to conduct within one year of their commissioning, according to JMSDF regulations.The tests include checking the seaworthiness and maneuverability of the ship in rough weather conditions, as well as try outs of the armament and equipment on board the vessel.
JS Maya is the first JMSDF Aegis ship to be equipped with Ballistic Missile Defense (BMD) capability from the design stage, as well as Cooperative Engagement Capability (CEC) to share information with other vessels and aircraft in real time. In addition to this ability test, JMSDF’s Aegis ships have been conducting qualification tests of their onboard equipment off the coast of Hawaii for generations, and the Maya‘s combat systems, including BMD capability, are likely to be tested here in the future.
About Maya-class
JMSDF AEGIS Destroyer JS Maya, during her transit to Yokoska naval base following her commissioning at JMU shipyard. Picture by Japanese photographer やん/やん @nvyan81
Originally known as 27DDG (This means that she was built in the FY2015 budget.), this new project of improved Aegis destroyers started in 2015. The new destroyer class is 170 meters long and displaces 8200 tons. She operates with a crew of 310 sailors, and features a COmbined Gas turbine-eLectric And Gas turbine (COGLAG) propulsion system.
This new destroyer class will be limited to two units named after famous mountains in Japan: The first ship-in-class, JS Maya まや (DDG-179), had its keel laid in April 2017, was launched on July 30th 2018 and commissioned with the JMSDF on 19 March this year. Its sistership, JS Haguro はぐろ(DDG-180) had its keel laid in January 2018, was launched on July 17th 2019and is currently at fitting out stage.
Each ship costs around US$1,5Bn and both were being built at the Japan Marine United (JMU) shipyard at Isogo Ward in Yokohama. The Maya-class is the first of JMSDF’s Aegis destroyers fitted with ballistic missile defense (BMD) capabilities from the design stage, and is also the first of Japan’s AEGIS fleet to be equipped with Cooperative Engagement Capability (CEC) from the start. The CEC allows the ship to receive targeting information from other assets, such as US Navy and Royal Australian Navy AEGIS destroyers or American and Japanese E-2D AEW&C aircraft. Japan has four E-2D Advanced Hawkeye aircraft on order, with the first one delivered on March 29 to the Japan Air Self-Defense Force.
Maya-class weapon and sensor systems
JMSDF AEGIS Destroyer JS Maya, during her transit to Yokoska naval base following her commissioning at JMU shipyard. Note the Mk 45 Mod 4 127mm main gun. Picture by Japanese photographer やん/やん @nvyan81
Fitted with the AEGIS Baseline J7 combat system, the AN/SPY-1D(V) passive electronically scanned array radar and the AN/SPQ-9B surface search radar, the Maya-class destroyers is able to fire the latest iteration of Raytheon’s SM-3 ballistic defense missile. Being jointly developed by the U.S. and Japan, the SM-3 Block IIA features larger rocket motors that will allow it to defend broader areas from ballistic missile threats and a larger kinetic warhead.
The Maya-class features 96 cells of Mk41 VLS (64 cells forward and 32 cells aft). Other weapon systems of the Maya-class include:
The SM-6 is a multi-mission missile that can engage both air and surface targets. According to our Japanese sources, SM-6 was scheduled to be procured in Japan’s defense budget of FY2019, but procurement was postponed due to shortage of SM-6 parts in the United States. Japan is set to become the first export customer of this missile type. SM-6, SM-3 and SM-2 are all designed and produced by Raytheon.
As we reported recently, the Maya-class destroyers will feature a cooperative tabledeveloped by Japanese company Fujitsu. Placed in the CIC, this table will be used for mission planning, among other tasks.
JMSDF AEGIS Destroyer JS Maya, during her transit to Yokoska naval base following her commissioning at JMU shipyard. View of the helicopter deck and hangar. Note the Phalanx CIWS on top of the hangar. Picture by Japanese photographer やん/やん @nvyan81
For electronic warfare, the Maya-class is fitted with NOLQ-2C ESM (Electronic Support Measures) and Mk.137 decoy launchers. The Maya-class is not fitted with any ECM (Electronic Countermeasures) system.
For anti-submarine warfare, the Maya-class is equipped with an AN/SQS-53C bow sonar and a Multi-Function Towed Array (MFTA) sonar at the stern.
Last but not least, the Maya-class would typically deploy with a SH-60K maritime helicopter.
TAGS Destroyer Japan Japan Maritime Self-Defense Force JMSDF Maya-class
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AUTHORS
Posted by : Yoshihiro Inaba
Yoshihiro Inaba is a Freelance Writer based in Shizuoka, Japan. He is one of the few young military writers in Japan and is currently a student studying international law (especially self-defense and use of force) at a Japanese graduate school. He is particularly familiar with Japan's Ground, Maritime and Air Self-Defense Forces.
JS Maya. JMSDF picture.
JMSDF To Put Its Latest Aegis Destroyer JS Maya Through Its Paces
According to a document released by the Japan Maritime Self-Defense Force (JMSDF), the Guided Missile Destroyer JS Maya (DDG-179)「まや」 and her crew will undergo a "capability test".
Yoshihiro Inaba 13 May 2020
Story by Yoshihiro Inaba with additional reporting by Xavier Vavasseur
The Maya is JMSDF’s seventh Aegis ship, a state-of-the-art destroyer that was just commissioned in March 2020.The capability test that will be conducted is an evaluation that vessels are required to conduct within one year of their commissioning, according to JMSDF regulations.The tests include checking the seaworthiness and maneuverability of the ship in rough weather conditions, as well as try outs of the armament and equipment on board the vessel.
JS Maya is the first JMSDF Aegis ship to be equipped with Ballistic Missile Defense (BMD) capability from the design stage, as well as Cooperative Engagement Capability (CEC) to share information with other vessels and aircraft in real time. In addition to this ability test, JMSDF’s Aegis ships have been conducting qualification tests of their onboard equipment off the coast of Hawaii for generations, and the Maya‘s combat systems, including BMD capability, are likely to be tested here in the future.
About Maya-class
JMSDF AEGIS Destroyer JS Maya, during her transit to Yokoska naval base following her commissioning at JMU shipyard. Picture by Japanese photographer やん/やん @nvyan81
Originally known as 27DDG (This means that she was built in the FY2015 budget.), this new project of improved Aegis destroyers started in 2015. The new destroyer class is 170 meters long and displaces 8200 tons. She operates with a crew of 310 sailors, and features a COmbined Gas turbine-eLectric And Gas turbine (COGLAG) propulsion system.
This new destroyer class will be limited to two units named after famous mountains in Japan: The first ship-in-class, JS Maya まや (DDG-179), had its keel laid in April 2017, was launched on July 30th 2018 and commissioned with the JMSDF on 19 March this year. Its sistership, JS Haguro はぐろ(DDG-180) had its keel laid in January 2018, was launched on July 17th 2019and is currently at fitting out stage.
Each ship costs around US$1,5Bn and both were being built at the Japan Marine United (JMU) shipyard at Isogo Ward in Yokohama. The Maya-class is the first of JMSDF’s Aegis destroyers fitted with ballistic missile defense (BMD) capabilities from the design stage, and is also the first of Japan’s AEGIS fleet to be equipped with Cooperative Engagement Capability (CEC) from the start. The CEC allows the ship to receive targeting information from other assets, such as US Navy and Royal Australian Navy AEGIS destroyers or American and Japanese E-2D AEW&C aircraft. Japan has four E-2D Advanced Hawkeye aircraft on order, with the first one delivered on March 29 to the Japan Air Self-Defense Force.
Maya-class weapon and sensor systems
JMSDF AEGIS Destroyer JS Maya, during her transit to Yokoska naval base following her commissioning at JMU shipyard. Note the Mk 45 Mod 4 127mm main gun. Picture by Japanese photographer やん/やん @nvyan81
Fitted with the AEGIS Baseline J7 combat system, the AN/SPY-1D(V) passive electronically scanned array radar and the AN/SPQ-9B surface search radar, the Maya-class destroyers is able to fire the latest iteration of Raytheon’s SM-3 ballistic defense missile. Being jointly developed by the U.S. and Japan, the SM-3 Block IIA features larger rocket motors that will allow it to defend broader areas from ballistic missile threats and a larger kinetic warhead.
The Maya-class features 96 cells of Mk41 VLS (64 cells forward and 32 cells aft). Other weapon systems of the Maya-class include:
- SM-6 also known as RIM-174 Standard Extended Range Active Missile (ERAM)
- SM-2MR Block IIIB Surface to Air Missiles
- Type 07 Vertical Launch Anti-submarine rocket
- Type 90/17 anti-ship missiles
- Mk 45 Mod 4 127mm main gun
- 2x Phalanx CIWS
- 2x HOS-302 triple torpedo tubes (for Mk-46 or Type 73 torpedoes)
The SM-6 is a multi-mission missile that can engage both air and surface targets. According to our Japanese sources, SM-6 was scheduled to be procured in Japan’s defense budget of FY2019, but procurement was postponed due to shortage of SM-6 parts in the United States. Japan is set to become the first export customer of this missile type. SM-6, SM-3 and SM-2 are all designed and produced by Raytheon.
As we reported recently, the Maya-class destroyers will feature a cooperative tabledeveloped by Japanese company Fujitsu. Placed in the CIC, this table will be used for mission planning, among other tasks.
JMSDF AEGIS Destroyer JS Maya, during her transit to Yokoska naval base following her commissioning at JMU shipyard. View of the helicopter deck and hangar. Note the Phalanx CIWS on top of the hangar. Picture by Japanese photographer やん/やん @nvyan81
For electronic warfare, the Maya-class is fitted with NOLQ-2C ESM (Electronic Support Measures) and Mk.137 decoy launchers. The Maya-class is not fitted with any ECM (Electronic Countermeasures) system.
For anti-submarine warfare, the Maya-class is equipped with an AN/SQS-53C bow sonar and a Multi-Function Towed Array (MFTA) sonar at the stern.
Last but not least, the Maya-class would typically deploy with a SH-60K maritime helicopter.
TAGS Destroyer Japan Japan Maritime Self-Defense Force JMSDF Maya-class
FacebookTwitterStumblelinkedinPinterest
AUTHORS
Posted by : Yoshihiro Inaba
Yoshihiro Inaba is a Freelance Writer based in Shizuoka, Japan. He is one of the few young military writers in Japan and is currently a student studying international law (especially self-defense and use of force) at a Japanese graduate school. He is particularly familiar with Japan's Ground, Maritime and Air Self-Defense Forces.
