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Hyūga-class helicopter destroyer

Japanese helicopter carrier class

Hyūga-class helicopter destroyer

Japanese helicopter carrier class

FieldValue
section1{{Infobox ship/image
imageDDH-181 ひゅうが (12).jpg
image_captionHyūga at sea
section2{{Infobox ship/class overview
nameHyūga class
buildersIHI Marine United
operators
class_before
class_after
built_range2006–2011
in_commission_range2009–present
total_ships_completed2
total_ships_active2
section3{{Infobox ship/characteristics
typeASW carrier
displacement*13,950 tons standard;
length197 m
beam33 m
draft7 m
propulsion*COGAG, 4 Ishikawajima Harima/General Electric LM2500-30 gas turbines
speedOver 30 kn
complement360 (Hyūga*)
sensors* ATECS (advanced technology command system)
armament* 16 cells Mk 41 VLS
aircraft*3 × SH-60K, 1 × MCH-101
aircraft_facilitiesFlight deck and enclosed hangar
  • 19,000 tons full load
  • Two shafts 5-bladed CP props
  • 100,000 shaft horsepower (75 MW)
  • 371 (Ise)
    • OYQ-10 advanced combat direction system
    • FCS-3 AAW system
    • OQQ-21 ASW system
    • NOLQ-3C EW system
    • OPS-20C surface search radar
    • 16 ESSM
    • 12 RUM-139 VL ASROC
  • 2 × 20 mm Phalanx CIWS
  • 2 × triple 324 mm torpedo tubes
  • 12.7mm MG
  • 18 aircraft maximum
JS ''Hyūga'' with helicopters in operation

The Hyūga-class helicopter destroyer is a class of helicopter carrier built for the Japan Maritime Self-Defense Force (JMSDF). Two - Hyūga and Ise - were built; upon completion the class were the largest ships built for the Japanese navy since the Second World War. Hyūga was described in a PBS documentary as the "first Japanese aircraft carrier built since WWII".

The Hyūgas were followed by the larger , the first being commissioned in March 2015. The Izumos replaced the helicopter destroyers; the Hyūgas were originally meant to replace the Shiranes.

The specifications of the Hyūga class are comparable to light aircraft carriers, such as the Italian and Spanish . Under the JMSDF's naming conventions, the ships are called goei-kan (護衛艦, lit. "escort ship") in Japanese and destroyer in English, as same as all the other combatant ships of JMSDF.

During development, Hyūga and Ise were provisionally named "16DDH" and "18DDH" respectively. The numbers derived from the Japanese calendar, specifically the 16th year and 18th year of the Heisei reign (2004 and 2006), when the provisional name were given.

Design and specifications

The Hyūgas are primarily anti-submarine warfare carriers operating SH-60K anti-submarine helicopters. They also have enhanced command-and-control capabilities to serve as flagships. During peacetime, Hyūgas and ships could operate together to conduct military operations other than war, peacekeeping and relief operations.

The ships are armed with a 16-cell VLS carrying the Evolved Sea Sparrow Missile surface-to-air missile, and Phalanx close in weapon system for self-defense. They are also equipped with the ATECS command system and FCS-3 fire control with active electronically scanned array radar system.

Globalsecurity.org suggests a maximum capacity of 18-24 H-60 class helicopters, or a smaller number of larger helicopters, even though the official complement was reported as three Mitsubishi H-60 and one AgustaWestland AW101 helicopters, or three Mitsubishi H-60 and one Sikorsky CH-53 Sea Stallion helicopters. The ships have also operated JGSDF Fuji AH-64D Apache attack helicopters during joint amphibious exercises with the United States. It is speculated that future modifications may allow the operation of VTOL/STOVL fixed-wing aircraft, such as Harriers or F-35 Lightning II.

In 2013, the USMC operated V-22 Ospreys on Hyūga during joint amphibious exercises.

In 2016, MV-22 Ospreys operated off Hyūga in the participation of relief efforts following the Kumamoto earthquake.

Ships in the class

Construction of the first ship, JS Hyūga, was started in 2006 and it was launched on 23 August 2007. The second was launched and named JS Ise on 21 August 2009.

NamePennant no.BuilderLaid downLaunchedCommissionedStatus
{{shipJSHyūga2}}DDH-181IHI Marine United, Yokohama11 May 200623 August 200718 March 2009
{{shipJSIse2}}DDH-18230 May 200821 August 200916 March 2011Active in service

Hyūga was named after Hyūga Province (present-day Miyazaki Prefecture) on the east coast of Kyūshū, and Ise after Ise Province (present-day Mie Prefecture). They inherited the names of the battleships and of the Imperial Japanese Navy. These two ships had been built during World War I and served in World War II. Following the Battle of Midway, Hyūga and Ise were converted into a hybrid battleship/aircraft carriers in 1943 with the replacement of the aft gun turrets and barbettes by a small aircraft handling deck and hangar deck with which they could launch a squadron of Yokosuka D4Y dive-bombers and Aichi E16A seaplanes.

In November 2009, Hyūga participated in "Annualex 21G" joint naval exercise with the US aircraft carrier and other USN and JMSDF ships to maintain the interoperability between the two navies.

On 11 March 2011, the 2011 Tōhoku earthquake and tsunami struck the northeast part of Japan. Hyūga immediately moved to off the coast of Miyagi prefecture and started search and rescue operations. Ise, which went into service on 16 March, also will join aid delivery operation for refuge shelters.

On 8 November 2013, Super-Typhoon Haiyan crossed the Visayas, Philippines. Ise joined the relief operation, using its helicopters to provide relief supplies to remote areas cut off by the storm.

Notes

References

References

  1. (11 July 2011). "DDH-161 Hyuga / 16DDH "13,500 ton" ton Class". Globalsecurity.org.
  2. PBS, ''[[Wide Angle (TV series)]]'' : [https://www.pbs.org/wnet/wideangle/episodes/a-woman-among-warlords-introduction/65/ "Japan's About-Face: The military's shifting role in post-war society"], July 8, 2008.
  3. (25 March 2015). "Japan commissions helicopter carrier Izumo".
  4. (Summer 2006). "Japanese Maritime Thought: If not Mahan, who?". [[Naval War College.
  5. (2016-06-11). "Keen Sword 17: JS Hyuga". DVIDS.
  6. Yong-weon, Yu. (2007-08-27). "After 40 Years, Japan Achieves Warship Dream". Chosun Ilbo.
  7. (2007). "Jane's Fighting Ships Vol. 110, 2007-2008". Jane’s Information Group.
  8. link. (2012-07-30 June 30, 2008. p. 13.)
  9. Herman, Arthur. (2007-09-09). "Pacific armadas: growing Far East navies mean new challenges for U.S.". [[New York Post]].
  10. "Japan Sends Its Troops Into Uncharted Waters".
  11. "A Nice Fit for Japan?".
  12. "31st Marine Expeditionary Unit returns to Okinawa from relief efforts". United States Pacific Command.
  13. link. (2009-08-27). Asagumo News
  14. Hutchison, Harold C.. (2007-08-25). "Japan's Secret Aircraft Carriers". Strategypage.com.
  15. [https://www.mod.go.jp/j/approach/defense/saigai/tohokuoki/news_msdf.html 防衛省・自衛隊：海上自衛隊の活動], Ministry of Defense
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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