Hatsuyuki-class destroyer

Isoyuki (DD-127)
Class overview
Name	Hatsuyuki class
Builders	Hitachi Zosen Corporation IHI Corporation Sumitomo Heavy Industries Mitsubishi Heavy Industries Mitsui Engineering & Shipbuilding
Operators	Japan Maritime Self-Defense Force
Preceded by	Yamagumo class
Succeeded by	Asagiri class
Built	1979–1986
In commission	1980–2021
Completed	12
Retired	12
General characteristics
Type	General-purpose destroyer (DD)
Displacement	2,950 tons standard, 4,000 tons hull load
Length	130 m (430 ft)
Beam	13.6 m (44 ft 7 in)
Draft	4.2 m (13 ft 9 in) 4.4 m (14 ft 5 in) (DD 129 to DD 132)
Propulsion	2 × KHI-RR TM3B gas turbines, 45,000 shp (34 MW) 2 × KHI-RR RM1C gas turbines, 9,900 shp (7.4 MW) 2 shafts, cp props
Speed	30 knots (35 mph; 56 km/h)
Complement	200
Sensors and processing systems	OYQ-5 tactical data system FCS-2 fire-control system OPS-14 air search radar OPS-18 surface search radar OQS-4 hull sonar OQR-1 TASS (in some ships)
Electronic warfare & decoys	NOLR-6C intercept OLT-3 jammer Mark 36 SRBOC Towed torpedo decoys
Armament	1 × OTO Melara 76 mm gun 2 × 20 mm Phalanx CIWS 2 × Harpoon SSM quad canisters 1 × Sea Sparrow SAM octuple launcher 1 × ASROC octuple launcher 2 × triple 324 mm torpedo tubes
Aircraft carried	1 × HSS-2B or SH-60J helicopter

The Hatsuyuki-class destroyer (はつゆき型護衛艦, Hatsuyuki-gata-goei-kan) is a class of destroyer, serving with the Japan Maritime Self-Defense Force (JMSDF). It was the first class of first generation of general-purpose destroyers of the JMSDF.^[1]