NAVYPEDIA

Photo

Chokai 2008 Many thanks to ChangZhi Wang for additional information on this page.

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
こんごう [Kongo]	DDG173		Mitsubishi, Nagasaki	8.5.1990	26.8.1991	25.3.1993	in service (2019)
きりしま [Kirishima]	DDG174		Mitsubishi, Nagasaki	7.4.1992	19.8.1993	16.3.1995	in service (2019)
みょうこう [Myoko]	DDG175		Mitsubishi, Nagasaki	8.4.1993	5.10.1994	14.3.1996	in service (2019)
ちょうかい [Chokai]	DDG176		IHI, Tokyo	29.5.1995	27.8.1996	20.3.1998	in service (2019)

Technical data

Displacement standard, t	7250
Displacement full, t	9500
Length, m	150.5 pp 161.0 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 1000
Endurance, nm(kts)	4500(20)
Armament	2 x 4 Harpoon SSM (8 RGM-84), (1 x 61 + 1 x 29) Standard SM-2MR Block III SAM / ASROC VLA ASuR Mk 41 VLS (74 RIM-66, 16 RUM-139), 1 x 1 - 127/54 OTO-Melara Compact, 2 x 6 - 20/76 Mk 15 Phalanx, 2 x 1 - 12.7/90, 2 x 3 - 324 HOS-302 TT, helicopter deck
Electronic equipment	SPY-1D, OPS-28D, 3x SPG-62, FCS-2-23, OPS-20, 2x Mk 90 radars, OQS-102, OQR-2 sonars, NOLQ-2, OLT-3, OPN-7B ECM suites, 4x Mk 36 SRBOC decoy RL, SLQ-25 Nixie torpedo decoy, OYQ-6 CCS
Complement	310

Standard scale images

Graphics

Project history

The design is an enlarged version of the U.S. Arleigh Burke flight I-class adding a backup surface/air-search radar, using a faster-firing 127mm gun with a dedicated fire-control system, and incorporating a more elaborate EW system with active jamming. Aegis Baseline 5 or Baseline J2 based. First ship was ordered in 1988. The great expense caused considerable resistance to the program, delaying its start by two years. The ships are intended to assist in the aerial defense of Japan as well as acting as AAW escorts for task forces.

Are equipped with the U.S. Prairie/Masker bubbler noise-radiation suppression system and have infrared exhaust signature provisions. Do not have fin stabilizers, relying on broad, fixed bilge keels and hullform for roll reduction. The deck abaft the after VLS missile installation is intended for use as a helicopter platform, but there is no hangar or deck-handling gear; twin stabilized horizon indicators are carried on the after superstructure to aid landings.

The VLS cells hold 61 missiles aft, 29 forward. The SPG-62 radar illuminators support three Mk 99 Mod. 1 missile fire-control direction systems, and the underwater battery fire-control system is the U.S. Mk 116 Mod. 7. The OQS-102 sonar is equivalent to the U.S. SQS-53C. The 12.7-mm mg and night-vision equipment were added to detect and deter infiltration craft.

Modernizations

2007, Kongo; 2008, Chokai; 2009, Myoko; 2010, Kirishima: + ability to carry Standard SM-3 Block IA (RIM-161) SAM

Naval service

No significant events.

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