Hateruma-class patrol vessel

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Plhakata.jpg
Hakata (PL-62)
Class overview
Name: Hateruma class
Builders: Mitsui Engineering & Shipbuilding Co., Ltd
Operators: Ensign of the Japanese Coast Guard.svg Japan Coast Guard
Preceded by: Aso-class
Succeeded by: Kunigami-class
Built: 2005–2010
In commission: 2008–present
Completed: 9
Active: 9
General characteristics
Type: 1,000 ton-class PL (Patrol vessel, Large)
Displacement: 1,300 Gross tonnage
Length: 89.0 m (292.0 ft)
Beam: 11.0 m (36.1 ft)
Propulsion: 4 × Waterjets
4 × diesel engines
Speed: 30 knots (56 km/h; 35 mph)
Boats & landing
craft carried:
2 × 7m class RHIBs
2 × 4.8m class RHIB
Complement: 30
Armament: One Mk44 Bushmaster II 30 mm gun with optical FCS
Aviation facilities: aft helicopter deck and refueling facilities

Hateruma-class patrol vessel (Japanese: はてるま型巡視船) is a class of PL type patrol vessels of the Japan Coast Guard. PL stands for "Patrol vessel Large", and the class name "Hateruma" is named after Hateruma-jima, the southernmost inhabited island of Japan.

Aiming at policing of Senkaku Islands, they can be floating base for smaller patrol crafts or helicopters, so they are called "拠点機能強化型巡視船", Patrol vessel, Sea-basing capability enhaunced.

Ships of this class are equipped with one single-mounted Mk44 Bushmaster II 30mm autocannon with laser-optical fire-control system. The 30mm-caliber autocannon is entirely new caliber for the JCG, and it give this class an increased firepower compared with usual 1,000 ton-class patrol vessels which has only one manually controlled 20mm vulcan. This gun system is more powerful than 20mm vulcan with the RFS (Remote Firing System: Remote weapon system associated with the simplified laser-optical Fire-control system) which is on board with recent PMs and PSs such as Tsurugi class, and more reasonable than Bofors 40 mm L/70 gun with the laser-optical FCS which is on board with High-speed, high-functionality PLs such as Hida class and Aso class.

This class has the helicopter deck wide enough to operate with Eurocopter EC225 helicopters to airlift supplies for small patrol crafts keeping Senkaku Islands under surveillance. And the broadband SATCOM system of this class can relay video data from helicopters to the ground station or the HQ of the JCG. This class is equipped with the LIDAR system to acquire targets with high accuracy, and at the same time, this system enables them to perform search and rescue mission more safely.

The JCG had intended to build a number of ships of this design for the successor of PL-101 Shiretoko-class, but this class may not suitable for SAR mission because of the insufficient low-speed mobility. So the construction project has switched to the PL-09 Kunigami-class, utilized variant of this class.

Shiretoko-class is the older 1,000 ton-class PLs, twenty-eight ships were built in late 1970s and early 1980s. It was recently announced that Japan plans to transfer 2 of the older Shiretoko class type patrol vessels to the Philippines Coast Guard later this year.[1][2]

Ships in the class[edit]

PL61 Hateruma
Commissioned: 2008 April
Home port: Ishigaki, Okinawa
PL62 Ishigaki (ex. Hakata)
Commissioned: 2009 February
Home port: Ishigaki, Okinawa
PL63 Yonakuni
Commissioned: 2009 February
Home port: Ishigaki, Okinawa
PL64 Shimokita (ex. Motobu)
Commissioned: 2009 March
Home port: Naha, Okinawa
PL65 Shiretoko (ex. Kunigami)
Commissioned: 2009 March
Home port: Nakagusuku, Okinawa
PL66 Shikine
Commissioned:2009 October
Home port: Port of Yokohama
PL67 Amagi
Commissioned:2010 March
Home port: Shimoda, Shizuoka
PL68 Suzuka
Commissioned:2010 March
Home port: Owase, Mie
PL69 Koshiki
Commissioned:2010 March
Home port: Kagoshima

See also[edit]

References[edit]

  1. ^ "Philippines to receive 10 new patrol ships from Japan | Inquirer Global Nation". Globalnation.inquirer.net. Retrieved 2012-05-19. 
  2. ^ "DEFENSE STUDIES: Japan Provides Patrol Ships to the Philippines". Defense-studies.blogspot.com. Retrieved 2012-05-19. 
  • "Ships of Japan Coast Guard". Ships of the World (Kaijinn-sha) (692): 51. July 2008. 
  • Shigehiro Sakamoto (July 2008). "60th Anniversary of JCG: For near future". Ships of the World (Kaijinn-sha) (692): 132–137. 
  • Yoshifumi Mayama (July 2008). "60th Anniversary of JCG: Technical history of its ship". Ships of the World (Kaijinn-sha) (692): 138–143.