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JS Atago (DDG-177)


Guided-Missile Destroyer Warship


Japan | 2007



"JS Atago leads its class of two guided missile destroyer warships and provides a critical defensive component for the nation of Japan."

Power & Performance
Those special qualities that separate one sea-going vessel design from another. Performance specifications presented assume optimal operating conditions for JS Atago (DDG-177).
4 x Ishikawajima Harima (General Electric) LM2500-30 gas turbines developing 100,000 horsepower to 2 x shafts.
Propulsion
30.0 kts
34.5 mph
Surface Speed
4,501 nm
5,180 miles | 8,336 km
Range
Structure
The bow-to-stern, port-to-starboard physical qualities of JS Atago (DDG-177).
300
Personnel
Complement
560.0 ft
170.69 meters
O/A Length
69.0 ft
21.03 meters
Beam
20.2 ft
6.16 meters
Draught
8,000
tons
Displacement
Armament
Available supported armament and special-mission equipment featured in the design of JS Atago (DDG-177).
1 x 5" Mk 45 Mod 4 deck gun.
1 x 64-cell Vertical Launch System (VLS) at bow (support for SM-2MR, SM-3 and RUM-139 ASROC missiles).
1 x 32-cell VLS at stern (support for SM-2MR, SM-3 and RUM-139 ASROC missiles).
2 x Type 90 quadruple missile launchers.
2 x Type 68 triple-torpedo tubes.
2 x 20mm Phalanx Close-In Weapon Systems (CIWSs).
Air Arm
Available supported fixed-wing / rotary-wing aircraft featured in the design of JS Atago (DDG-177).
1 x Mitsubishi SH-60K ASW/SAR navy helicopter.
Ships-in-Class (2)
Notable series variants as part of the JS Atago (DDG-177) family line as relating to the Atago-class group.
JS Atago (DDG-177); JS Ashigara (DDG-178)
Authored By: Staff Writer | Last Edited: 03/25/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

Japan owns one of the top defense budgets in the world and, due to the importance of its geographic location concerning trade and the rise in tensions with its regional neighbors, is forced to field an advanced naval fleet. The Atago-class guided missile destroyers were taken into service in the 2000s and currently (2016) number two warships - JS Atago (DDG-177) as the lead and JS Ashigara (DDG-178) as her sister. The class succeeded the still-capable Kongo-class (four ships) and were built from 2004 to 2008. JS Atago was completed by Mitsubishi Heavy Industries (MHI) and maintains an active presence in the Japan Maritime Self-Defense Force (JMSDF) inventory.

Compared to the Kongo-class they followed, the Atago-class destroyers improved helicopter functions by adding an onboard hangar and were given additional decks at the bridge superstructure (raising the bridge some). The turreted deck gun was also addressed through better engagement range and inherent firepower.

The American influence in Japanese warships is apparent - indeed the JS Atago takes on a similar form and function to the United States Navy's Arleigh Burke-class of guided missile destroyers. The Atago is also outfitted with the American-made "AEGIS" weapon system offering strong anti-missile capabilities through sophisticated scanning, tracking and engagement of incoming airborne threats. Its helicopter component is also the Sikorsky SH-60K navy helicopter, manufactured locally by Mitsubishi, and the propulsion scheme is a license-produced General Electric system.

As built, Atago displaces 7,700 tons under standard loads and over 10,000 tons under full loads. She showcases an overall length of 541.3 feet, a beam of 68.10 feet and a draught of 20.3 feet. Power is from 4 x Ishikawajima Harima (General Electric) LM2500-30 gas turbines developing 100,000 horsepower to 2 x shafts allowing for speeds to reach 30 knots in ideal conditions. Her crew complement numbers 300 and a full service deck and hangar facility aids in the launching and retrieval of maritime helicopters. The helicopter is further equipped to deal with ship and submarine threats and serve in the Search and Rescue (SAR) role when needed - all the while provided valuable over-the-horizon reconnaissance.

Onboard systems include the AN/SPY-1D(V) Passive Electronically-Scanned Array (PESA) radar, the OPS-28E surface search radar, AN-SQS-53C sonar, three AN/SPG-62 Fire Control Systems (FCSs), AN/SQQ-89 ASW unit, and the Mk 46 Optronic director. Electronic Warfare (EW) is through the NOLQ0-2 system and four Mk 36 SRBOC countermeasures kits are carried.

Armament is led by a 64-cell bank of Mk 41 Vertical Launch Systems (VLSs) along the forecastle and a 32-cell bank near the stern. These support the SM-2MR Surface-to-Air Missile (SAM), the SM-3 Anti-Ballistic Missile (ABM) and the RUM-139 ASROC (Anti-Submarine ROCket) system. 2 x Type 90 quad launchers are seated at midships for SSM-1B Anti-Ship Missiles (ASMs). 2 x Type 68 triple torpedo tubes (Mk 46 or Type 73 torpedoes) are carried for anti-submarine work. More conventional armament is had in the single 5" Mk 45 Mod 4 turreted deck gun over the bow and 2 x 20mm Phalanx Close-in Weapon Systems (CIWSs) - one identified ahead of the bridge superstructure and the other near the aft superstructure for good all-round protection at short-range.

Her profile silhouette is consistent with ships of this class and type - the bridge superstructure is found just aft of the turret, an enclosed pyramidal stealth-minded mast is integrated to this structure, and the smoke funnels are of a low-profile and slab-sided design near midships. The aft superstructure contains a hangar facility and is attached to the stern-based helipad. The bow is sharply-pointed and elevated from the turret to the extreme front end.

Should the situations with North Korea and China escalate, the Atago and her sister will no doubt be called to action in defense of Japanese interests in the region.

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Operators
Global operator(s) of the JS Atago (DDG-177). Nations are displayed by flag, each linked to their respective national naval warfare listing.
National flag of modern Japan

[ Japan ]
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Image of the JS Atago (DDG-177)
Image from the United States Department of Defense DVIDS image network.
2 / 2
Image of the JS Atago (DDG-177)
Image from the United States Department of Defense DVIDS image network.

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