Ojika-class patrol vessel
The Ojika-class patrol vessel is a class of PL type patrol vessels of the Japan Coast Guard. [2][3][Note 1]
 Yahiko (PL-04) | |
| Class overview | |
|---|---|
| Name | Ojika-class patrol vessel |
| Operators | |
| Preceded by | Nojima |
| Succeeded by | Aso class |
| Built | 1990–2000 |
| In commission | 1991– |
| Completed | 7 |
| Active | 7 |
| Retired | 1 (in Japanese service) |
| General characteristics | |
| Type | 1,000 ton-class PL[Note 1] |
| Tonnage | 1,269 GT[2] |
| Displacement | |
| Length | 91.5 m (300 ft 2 in)[2] |
| Beam | 11.0 m (36 ft 1 in)[2] |
| Draught | 3.5 m (11 ft 6 in)[3] |
| Depth | 6.4 m (21 ft 0 in)[2] |
| Propulsion |
|
| Speed | 20.0 knots (37.0 km/h; 23.0 mph)[2] |
| Range | 3,000 nmi (5,600 km; 3,500 mi)[2] |
| Boats & landing craft carried |
|
| Complement | 34[2] |
| Sensors and processing systems | JMA-1596 navigation radar[2] |
| Armament |
|
Design
The design of this class is generally an modified version of Nojima (PL-01), a preceding 1,000-ton class PL being emphasis on air-sea rescue operations.[5]
In contrast to the Nojima, which had a helicopter deck one level higher than the strength deck, this class utilizes the end of the strength deck as the helicopter deck, and has a reinforced structure to land a large Super Puma helicopter. In addition, a well dock was installed below the helicopter deck to accommodate a high speed launch,[5] but it was not efficient as planned and discontinued after the second ship.[6]
The chimney was split into two and placed on both sides of the ship. Between these funnels, a hangar for the ROV and a preparation room for diving operations were set up.[6] With these capabilities to support divers, all ships of this class are officially certified as Patrol Vessel with Enhanced Rescue Capability (救難強化巡視船, Kyūnan-kyōka-junshisen).[2]
Ships in the class
| Hull no. | Ship name | Builder | Commission | Decommission | Fate |
|---|---|---|---|---|---|
| PL-02 | Erimo (former Ojika) | Mitsui Engineering & Shipbuilding | 31 October 1991 | 24 January 2017 | Transferred to Malaysian Coast Guard as KM Pekan[7][8] |
| PL-03 | Kudaka | Hakodate Dock | 25 October 1994 | ||
| PL-04 | Yahiko (former Satsuma) | Sumitomo Heavy Industries | 26 October 1995 | ||
| PL-05 | Dejima (former Hakata) | Ishikawajima-Harima Heavy Industries | 26 November 1998 | ||
| PL-06 | Kurikoma (former Dejima) | Mitsui Engineering & Shipbuilding | 29 October 1999 | ||
| PL-07 | Satsuma | Kawasaki Heavy Industries | |||
| PL-08 | Tosa (former Motobu) | Sasebo Heavy Industries [ja] | 31 October 2000 |
Notes
- The hull classification symbol "PL" stands for "Patrol Vessel, Large".[1]
References
- Asanaga & Ōtsuka 1995, p. 16.
- Kaijin-sha 2020, p. 59.
- Saunders 2009, p. 438.
- Asanaga & Ōtsuka 1995, p. 161.
- Asanaga & Ōtsuka 1995, pp. 131–132.
- Mayama, Hasegawa & Sugawara 2003, p. 151.
- Ogilvy, Geryl (25 February 2017). "MMEA plans to set up two radar stations in Sarawak". Toronto Star. Retrieved 25 July 2017.
- "Malaysian Coast Guard To Be Strengthened With Three Patrol Vessels, Japan's Ex-Ojika-Class Boat". defenseworld.net. 25 January 2017. Retrieved 25 July 2017.
Bibliography
- Asanaga, Youichirou; Ōtsuka, Yukitaka (1995). 海上保安庁 船艇と航空 [Maritime Safety Agency - Its Vessels and Aviation] (in Japanese). Seizando-shoten Publishing co.,ltd. ISBN 4-425-77041-2.
- Saunders, Stephen (2009). Jane's Fighting Ships 2009-2010. Jane's Information Group. ISBN 978-0710628886.
- Kaijin-sha, ed. (October 2020). "Patrol Vessels - Ships of Japan Coast Guard". Ships of the World (in Japanese). Kaijin-sha (933): 39–90. NAID 40022358584.
- Mayama, Yoshihumi; Hasegawa, Hitoshi; Sugawara, Seisuke (July 2003). "All Ships of Japan Coast Guard 1948-2003". Ships of the World (in Japanese). Kaijin-sha (613): 21–191. NAID 40005855317.
External links
Media related to Ojika class patrol vessel at Wikimedia Commons