Yūbari-class destroyer escort
Destroyer escort of the Japanese Maritime Self-Defense Force
From Wikipedia, the free encyclopedia
The Yūbari-class destroyer escort[a] (or frigate) of the Japanese Maritime Self-Defense Force is the successor to the Ishikari-class destroyer escort and primarily focused on anti-submarine warfare. The class comprised two ships and were in service from 1983 to 2010. They were followed by the Abukuma class.
Japan Maritime Self-Defense ForceJS Yūbetsu | |
| Class overview | |
|---|---|
| Operators | Japan Maritime Self-Defense Force |
| Preceded by | Ishikari class |
| Succeeded by | Abukuma class |
| Built | 1981–1983 |
| In commission | 1983–2010 |
| Completed | 2 |
| Retired | 2 |
| General characteristics | |
| Type | Destroyer escort |
| Displacement | |
| Length | 91 m (298 ft 7 in) |
| Beam | 10.8 m (35 ft 5 in) |
| Draft | 3.6 m (11 ft 10 in) |
| Propulsion |
|
| Speed | 25 knots (46 km/h; 29 mph) |
| Complement | 95 |
| Armament |
|
Description
This class was based on the design of the predecessor JS Ishikari but was enlarged with improved accommodation and fuel capacity. The ships have a standard displacement of 1,470 metric tons (1,450 long tons) and 1,690 t (1,660 long tons) at full load. They measure 91 meters (298 ft 7 in) long with a beam of 10.8 m (35 ft 5 in) and a draft of 3.5 m (11 ft 6 in).[1] They have a complement of 95 personnel.[2]
The class retained the CODOG propulsion system consisting of a Rolls-Royce Olympus TM-3B manufactured by the Kawasaki Heavy Industries under license used for boosting, creating 21,200 kilowatts (28,400 shp). The cruising engine is the Mitsubishi/MAN 6DRV 35/44 diesel engine, turning two shafts with controllable pitch propellers creating 3,470 kW (4,650 bhp), reaching a maximum speed of 25 knots (46 km/h; 29 mph).[1][2]
The class is equipped with OPS-28 surface search and target acquisition radar. They utilize the FCS-2 fire-control system for the 76-millimeter (3.0 in) gun. For electronic support measures, the escorts are equipped with NOLR 6B system. The ships sport the SQS-36J hull-mounted sonar for subsurface targeting. For anti-missile defence, the Yūbaris have two Mk 36 SRBOC six-barrelled chaff launchers.[2]
This class is equipped with eight Boeing Harpoon surface-to-surface missiles as the key weapon system, in two quad launchers. They also mount 76 mm/62 Compact gun.[2] Provision for a Phalanx CIWS was made in the stern area, although it was never installed.[1] They are also armed with two triple-mounted HOS-301 324 mm (12.8 in) torpedo tubes for Mk 46 Mod 5 torpedoes.[2] For anti-submarine defense, the vessels mount a Bofors 375 mm rocket launcher.[2]
Ships in the class
| Yūbari class construction data[2] | |||||||
|---|---|---|---|---|---|---|---|
| Pennant no. | Name | Builder | Laid down | Launched | Commissioned | Decommissioned | Fate |
| DE-227 | Yūbari | Sumitomo, Uraga | 9 February 1981 | 22 February 1982 | 18 March 1983 | 25 June 2010[citation needed] | |
| DE-228 | Yūbetsu[b] | Hitachi, Maizuru | 14 January 1982 | 25 January 1983 | 14 February 1984 | 25 June 2010[citation needed] | |
Construction and career
Only two units were ordered, the second in Fiscal Year (FY) 1980–81.[1] However, a change in policy beginning in 1983 saw the Japanese Maritime Self-Defense Force change its focus from anti-submarine warfare defense to offshore sea lane and communication defense. As a result, no new hulls were purchased and they were only followed by the larger Abukuma class in FY 1987–88.[3] Both ships of this class were deployed at the Ominato District Force (home-ported at Mutsu, Aomori). The Ominato District is the northernmost district of the JMSDF and forefront against the Russian Pacific Fleet.
See also
Notes
- Sometimes Yuubari depending on romanization.
- Sometimes Yuubetsu depending on romanization.