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Naval Warfare

JS Maya (DDG-179)

Guided-Missile Destroyer Warship [ 2020 ]

JS Maya DDG-179 was commissioned for active service into the Japanese Navy on March 19th, 2020.

Authored By: Staff Writer | Last Edited: 03/25/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The Maya-class destroyer group serving the modern Japan Maritime Self-Defense Force (JMSDF) is constructed by the specialists of Japan Marine United and is being used to succeed the Atago-class ships, themselves improved forms of the Kongo-class. Like the Atago-class, the Maya-class consists of just two warships but represent the latest in state-of-the-art maritime sensor processing and ranged firepower. Their capabilities are such that they can operate independently or as part of the main fighting fleet. The lead ship, JS Maya (DDG-179), saw her keel laid down on April 17th, 2017. She was launched for trials on July 30th, 2018 and was formally commissioned into service with the JMSDF on March 19th, 2020.

JS Maya represents a sub-class of the earlier Atago-class and is also known as the "27DDG Destroyer". The primary component of the Maya-class is its integration of the powerful maritime-minded "AEGIS" combat system. Another differentiating quality is its reliance on a COGLAG (COmbined Gas-ELectric And Gas) propulsion scheme.

JS Maya, named after Mount Maya, and displaces 8,332 tons under standard loads and 10,414 tons under full loads. Dimensions include a running length of 557.4 feet with a beam measuring 72.9 feet and a draught down to 21 feet. Power is from an IHI (General Electric) arrangement involving 4 x LM2500-30 series gas turbines driving 2 x 5-bladed propeller shafts astern. Total output power reaches 68,010 horsepower suitable for fast, dash actions or cruising endeavors. The vessel makes headway at about 30 knots.

Aboard is a crew numbering 300 and sensors and processing systems include the AN/SPY-1D(V) Passive, Electronically-Scanned Array (PESA) radar suite alongside the AN/APQ-9 surface-search radar system. The AN/SQQ-89 is the installed Undersea Warfare Combat System (UWCS) for anti-submarine actions. 3 x Mk.99 Mod 8 Fire Control Systems (FCSs) are featured as is the Mk 116 and Mk 160 FCS units.

Armament consists of 1 x 5" (127mm) /L62 Mk 45 Mod 4 turreted naval gun at the forecastle backed by 2 x 20mm Phalanx Close-In Weapon Systems (CIWSs). However, the bread-and-butter of the vessel is its missile array which is lead by the 64-cell forward Vertical Launching System (VLS) and the 32-cell aft VLS. These have the capability to fire SM-2MR Standard missiles, SM-3 anti-ballistic missiles, SM-6 Standard missiles, and Type 07 VL-ASROCs (Vertically-Launched, Anti-Submarine ROCkets). 2 x Missile launchers support up to 8 x Type 17 missiles and 2 x Type 68 triple-torpedo tubes are featured supporting the Mk 46 or Type 73 torpedo families.

Additional support for Anti-Submarine Warfare (ASW) operations comes from the Sikorsky SH-60K navy helicopter that can be launched or retrieved from the aft-seated helipad. A full-service hangar is also found aboard which can house a second helicopter system.

The structure of the Maya utilizes all known and proven signature-reducing features including slab sides and enclosed mastworks / smoke funnels. A low-profile design also aids in keeping the Maya a small target on the horizon. Couple these qualities with its onboard systems and the vessel sports many survivability features needed of modern warship types.©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.


Service Year

Japan national flag graphic

In Active Service.


JS Maya (DDG-179); JS Haguro (DDG-180)

National flag of modern Japan Japan
(OPERATORS list includes past, present, and future operators when applicable)
Offshore Bombardment
Offshore bombardment / attack of surface targets / areas primarily through onboard ballistic weaponry.
Offshore strike of surface targets primarily through onboard missile / rocket weaponry.
Maritime Patrol
Active patroling of vital waterways and maritime areas; can also serve as local deterrence against airborne and seaborne threats.
Airspace Denial / Deterrence
Neutralization or deterrence of airborne elements through onboard ballistic of missile weaponry.
Fleet Support
Serving in support (either firepower or material) of the main surface fleet in Blue Water environments.

557.4 ft
169.90 m
72.9 ft
22.22 m
21.0 ft
6.40 m

Installed Power: COGLAG (COmbined Gas-eLectric-And-Gas) Propulsion Arrangement: 4 x IHI (General Electric) LM2500-30 gas turbines developing 68,010 horsepower to 2 x Shafts under stern.
Surface Speed
30.0 kts
(34.5 mph)

kts = knots | mph = miles-per-hour | nm = nautical miles | mi = miles | km = kilometers

1 kts = 1.15 mph | 1 nm = 1.15 mi | 1 nm = 1.85 km
1 x 5" (127mm) /L62 Mk 45 Mod 4 turreted deck gun.
1 x 64-cell Mk 41 Vertical Launching System (VLS) at the forecastle (SM-2MR, SM-3, SM-6, Type 07).
1 x 32-cell Mk 41 VLS at the stern (SM-2MR, SM-3, SM-6, Type 07).
2 x Missile launchers (Type 17 missile, 8 x Reloads).
2 x 20mm Phalanx Close-In Weapon Systems (CIWSs).
2 x Type 68 triple torpedo tubes (Mk 46 or Type 73 torpedoes).

Supported Types

Graphical image of a modern warship turreted deck gun armament
Graphical image of an aircraft Gatling-style rotating gun
Graphical image of an aircraft aerial torpedo

(Not all weapon types may be represented in the showcase above)
2 x Sikorsky SH-60K navy helicopter (1 helipad, 1 hangar).

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Images Gallery

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Image of the JS Maya (DDG-179)
Image from Japan Marine United.

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