Harushio-class submarine

	Wakashio, a Harushio-class submarine
Class overview
Name	Harushio class
Builders	Mitsubishi Heavy Industries,; Kawasaki Shipbuilding Corporation;
Operators	Japan Maritime Self-Defense Force
Preceded by	Yūshio class
Succeeded by	Oyashio class
Subclasses	Harushio; Asashio;
Built	1987–1997
In commission	1990–2017
Completed	7
Retired	7
General characteristics as built
Type	Submarine
Displacement	2,450 t (2,410 long tons) (surfaced); 3,200 t (3,100 long tons) (submerged);
Length	77.4 m (253 ft 11 in)
Beam	10.5 m (34 ft 5 in)
Draught	7.7 m (25 ft 3 in)
Propulsion	1-shaft diesel-electric; 3,400 bhp (2,500 kW) (surfaced); 7,200 shp (5,400 kW) (submerged);
Speed	12 knots (22 km/h; 14 mph) (surfaced); 20 knots (37 km/h; 23 mph) (submerged);
Complement	75
Sensors &; processing systems	ZQQ 5B hull-mounted sonar; ZQR 1 towed array; ZPS 6 I-band search radar;
Armament	6 × 533 mm (21 in) torpedo tubes with 20 reloads for:; Type 89 torpedo; UGM-84 Harpoon;

The Harushio class (はるしお, "Spring Tide") is a diesel-electric submarine class that was operated by the Japanese Maritime Self-Defense Force (JMSDF). The design is an evolution from the Yūshio class being slightly larger and with better noise reduction. Asashio, was modified to test air-independent propulsion (AIP), and the remaining vessels were decommissioned and replaced by the Oyashio class