NAVYPEDIA

Photo

Atago 2007 Many thanks to ChangZhi Wang for additional information on this page.

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
あたご [Atago]	DDG177		Mitsubishi, Nagasaki	5.4.2004	24.8.2005	15.3.2007	in service (2019)
あしがら [Ashigara]	DDG178		Mitsubishi, Nagasaki	6.4.2005	30.4.2006	13.3.2008	in service (2019)

Technical data

Displacement standard, t	7750
Displacement full, t	10000
Length, m	150.5 pp 164.9 oa
Breadth, m	21.0
Draught, m	6.20 hull
No of shafts	2
Machinery	COGAG: 4 General Electric LM-2500 gas turbines
Power, h. p.	100000
Max speed, kts	30
Fuel, t	gas turbine oil
Endurance, nm(kts)	4500(20)
Armament	2 x 4 SSM-1B SSM (8 SSM-1B), (1 x 64 + 1 x 32) Standard SM-2MR SAM / ASROC VLA ASuR Mk 41 (VLS, 96 RIM-66 / x4 RIM-162 / RUM-139), 1 x 1 - 127/54 Mk 45 mod. 4, 2 x 6 - 20/76 Mk 15 Phalanx Block 1B, 2 x 3 - 324 HOS-302 TT, 2 helicopters (SH-60J)
Electronic equipment	SPY-1D(v), OPS-28E, 3x SPG-62, FCS-2-21, OPS-20, 2x Mk 90 radars, Mk 46 e/o director, OQS-102 (SQS-53C) sonar, NOLQ-2B, OLT-3 ECM suites, 4x Mk 36 SRBOC decoy RL, SLQ-25 Nixie torpedo decoy, OYQ-6 CCS
Complement	307

Standard scale images

Graphics

Project history

Follow-on to the Kongo-class destroyers. DDG177 was added to the 2001-05 procurement plan in 1998 and DDG 178 in 2000 to improve strategic air defense capabilities. The design is essentially an enlargement of the Kongo class with incorporation of a helicopter hangar. VLS missile configuration is reversed from the Kongo class with the larger battery carried forward and the remaining weapons fitted aft. Fitted with the new version of Aegis weapon system (Baseline J6) with CEC 'Cooperative Engagement Capability), UPX-29(v) IFF interrogation system, ORQ-1 helicopter datalink, Mk 34 gun weapon-control system, and SQQ-121 Computer-Aided Dead-Reckoning Tracker. They are optimized for employment as theater air defense ships, using the U.S. Standard SM-2 Block III and are being upgraded with SM-3 Block 1A BMD missiles. Make considerable use of COTS (Commercial Off-The-Shelf) computer and display equipment. The 127mm gun is carried in a faceted, radar reflection reduction gunhouse.

Modernizations

None.

Naval service

No significant events.

Many thanks to ChangZhi Wang for additional information on this page.