Takatsuki-class destroyer

The Takatsuki class destroyer was a vessel of the Japan Maritime Self-Defense Force. It was the predecessor of the Hatsuyuki-class destroyer, and was mainly used for anti-submarine warfare duties.

JS Nagatsuki (DD-167)
Class overview
Name	Takatsuki class destroyer
Builders	IHI Corporation Mitsubishi Heavy Industries
Operators	Japan Maritime Self-Defense Force
Preceded by	Yamagumo-class destroyer
Succeeded by	Minegumo-class destroyer
Built	1964 - 1970
In commission	1967 - 2003
Planned	4
Completed	4
Retired	4
General characteristics
Type	Destroyer
Displacement	3,100 long tons (3,150 t) standard 4,500 long tons (4,572 t) full load
Length	136.0 m (446 ft 2 in) overall
Beam	13.4 m (44 ft 0 in)
Draft	4.4 m (14 ft 5 in)
Propulsion	60,000 shp (45 MW), 2 shafts (Takatsuki and Nagatsuki) 2 × Mitsubishi/WH reaction/impulse steam turbines 2 × Mitsubishi CE water tube boilers (Kikuzuki) 2 × Mitsubishi/EW impulse steam turbines 2 × Mitsubishi CE water tube boilers (Mochizuki) 2 × Kawasaki Model NH-300 impulse steam turbines 2 × Kawasaki Model BD-120-1 water tube boilers
Speed	32 knots (37 mph; 59 km/h)
Range	6,000 nmi (11,000 km) at 16 kn (18 mph; 30 km/h)
Complement	270 (Takatsuki, 1967), 260 (Takatsuki, 1985)
Sensors and processing systems	OPS-11B EWR, OPS-17 SSR, AN/SQS-23, AN/SQS-35(J), OPS-11C EWR (1986) Mark 56 fire-control system
Electronic warfare & decoys	NOLR-1B, NOLQ-1 (1986)
Armament	(Takatsuki, 1967) 2 × Mk.42 5 in (127 mm) guns 1 × 8 ASROC 1 × 4 Bofors 375 mm (15 in) ASW rocket launcher 2 × 3 Mk.32 ASW torpedo tubes 2 × QH-50D DASH anti-submarine drone helicopter (Kikuzuki, 1986) 1 × Mk.42 5 in (127 mm) gun 2 × 4 RGM-84 Harpoon 1 × 8 Mk.29 Sea Sparrow 1 × Mk.15 CIWS 1 × 8 ASROC 1 × 4 Bofors 375 mm (15 in) ASW rocket launcher 2 × 3 Mk.32 ASW torpedo tubes

In 1985-1988, Takatsuki and Kikuzuki were upgraded with Sea Sparrow SAM launchers, Harpoon missile anti-ship missile launchers, Phalanx CIWS systems (Kikuzuki only), new FCS (FCS-2-12) fire control radar and TASS. Mochizuki and Nagatsuki were in the upgrade program, but were eventually not upgraded.