izumo class helicopter destroyer - seaforces online

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Japan Maritime Self Defense Force / JMSDF
Izumo class Helicopter Destroyer - DDH
izumo class helicopter destroyer aircraft carrier japan maritime self defense force jmsdf marine united ddh-183 ddh-184 kaga 13x
DDH-183 JS Izumo (2015)
JS Kaga (2017)
248 meters (814 feet)
Beam: 38 meters (125 ft)
Draft: 7.5 meters (25 ft)

Displacement: 27000 tons (full load)
Speed: 30 knots (56 km/h)
Range: -
Complement: 970 (incl. air wing)

Combined Gas and Gas (COGAG)
4 x
Ishikawajima Harima Industries - IHI/General Electric LM2500 IEC gas turbines (112000 shp / 84MW)
2 shafts / 2 controllable pitch propellers

full flight deck (5 landing spots) / hangar deck
up to 28 aircraft, max. (SH-60K Seahawk / F-35B Lightning II)

2 x Mk-15 Mod.31 SeaRAM Close-In-Weapon-System (CIWS)
2 x Mk-15 Phalanx Close-In-Weapon-System (CIWS)

ATECS (Advanced Technology Command System)
OYQ-12 Combat Direction System
FCS-3 Fire Control System

OPS-50 AESA Radar (Active Electronically Scanned Array)
OPS-28 Surface-search Radar
OQQ-23 Bow Sonar
NOLQ-3D-1 EW suite
Mark 36 SRBOC
Anti-torpedo Mobile Decoy (MOD)
Floating Acoustic Jammer (FAJ)
The Izumo-class multi-purpose destroyers or 22DDH are helicopter carriers in service with the Japan Maritime Self-Defense Force (JMSDF). In December 2018, the Japanese Cabinet gave approval to convert both ships in the class into aircraft carriers capable of operating the STOVL F-35B. The class is designated as a multi-purpose operation destroyer by the Japanese government due to limits on the Japanese Constitution prohibiting the acquisition of offensive platforms. The ships of this class are currently the largest surface combatants of the JMSDF, taking over the mantle previously held by the Hyuga-class helicopter destroyers. The lead ship was officially unveiled at Yokohama on 6 August 2013.

The Japanese Ministry of Defense (MOD) first announced plans for the class on 23 November 2009. This ship's primary mission is anti-submarine warfare (ASW) but peacekeeping and disaster relief operations are also being considered.

The ship carries up to 28 aircraft. However, only 7 ASW helicopters and 2 search and rescue (SAR) helicopters are planned for the initial aircraft complement. For other operations, 400 troops and 50 3.5 ton trucks (or equivalent equipment) can also be carried. The flight deck has 5 helicopter landing spots that allow simultaneous landings or take-offs. The ship is equipped with 2 Phalanx CIWS and 2 SeaRAM for its defense. The destroyers of this class were initially intended to replace the two ships of the Shirane class, which were originally scheduled to begin decommissioning in FY2014.

In 2010, Forecast International reported that some design features were intended to support fixed wing aircraft such as the Bell Boeing V-22 Osprey and Lockheed Martin F-35 Lightning II, although neither the MOD nor the JMSDF have mentioned the possibility of introducing carrier-based fixed-wing aircraft. The ship has neither a "ski-jump" nor a catapult, typical features for launching fixed-wing aircraft. If the Izumo class were to operate fixed-wing aircraft, they would be limited to those capable of STOVL (short take-off, vertical landing) operations.

The construction of the first ship of the class began in 2011 at an IHI Marine United shipyard in Yokohama, with funding totalling 113.9 billion yen ($1.5 billion) being set aside in the fiscal 2010 budget for this purpose.

Conversion to an Aircraft Carrier:
On 6 August 2013, JS Izumo was unveiled in Yokohama, south of Tokyo, Japan. Japanese officials claimed it would be used in national defense, specifically citing anti-submarine warfare and border-area surveillance missions. Additionally, it is also asserted to bolster Japan's ability to transport personnel and supplies in response to large-scale disasters. This unveiling occurred at a time of heightened tensions over the Senkaku Islands.

The Washington Post noted that this ship - the biggest warship in Japan's fleet since World War II - "has raised eyebrows in China and elsewhere because it bears a strong resemblance to a conventional aircraft carrier" and has been described by the Chinese as an "aircraft-carrier in disguise." Though called a destroyer, some experts believe the new Japanese ship could potentially be used in the future to launch fighter jets (F-35B) or other fixed wing aircraft.

Japanese military sources confirmed that the possibility of operating fixed wing aircraft was incorporated into the design of the ships from the earliest stages of the Izumo program, but this was not made public because Article 9 of the Japanese Constitution prohibits Japan from possessing offensive military weapons such as aircraft carriers. The aircraft elevators and the deck paint were designed to handle aircraft like the F-35B, and it would be possible to add a ski-jump to the flight deck for STOVL operations.

In December 2017, several sources including Reuters and Yomiuri Shimbun reported that the Japanese government was contemplating modifying the Izumo class to operate F-35B STOVL aircraft. Multiple plans were reportedly under consideration, some of which call for US Marine Corps F-35s to use the vessels while others for Japan to procure its own aircraft. The plan quickly raised criticism from China, where government officials reacted negatively and urged Japan to "act cautiously".

Later, in February 2018, the Yomiuri Shimbun reported that Japan was planning to acquire 40 F-35B, the Short Take-off and Vertical Landing (STOVL) variant of the Lockheed Martin Lightning II Joint Strike Fighter (JSF), which could be operated from Izumo class with some modifications to the ships. It was estimated that each Izumo-class carrier could operate 12 or more F-35B aircraft. In March that same year, the ruling Liberal Democratic Party called upon the Japanese government to develop its own aircraft carriers and operate F-35B aircraft, which has been thought to include refitting the Izumo class. Defence Minister Takeshi Iwaya announced on 27 November 2018 that Japan is considering buying F-35B within an order for an additional 100 F-35 aircraft, and as a consequence modifying both Izumo-class helicopter carriers to operate F-35B were also considered.

Approval of conversion:
On 18 December 2018, the Japanese Cabinet gave approval to modify the Izumo class into de facto aircraft carriers. The modifications will reinforce the decks of the Izumo-class ships to support the additional weight of F-35B, as well as the heat and forces from the jets during vertical landing. The ruling parties re-designated the Izumo-class ships to multi-purpose operation destroyers. On 30 December 2019, Japanese Ministry of Defense approved the FY2020 budget that would finance the refurbishment of the Izumo class for F-35B operation.

source: wikipedia (02/20)
class + detail images
for more images go to the individual ship-site

izumo class helicopter destroyer aircraft carrier japan maritime self defense force jmsdf marine united ddh-183 ddh-184 kaga 15x
DDH 183 JS Izumo

izumo class helicopter destroyer aircraft carrier japan maritime self defense force jmsdf marine united ddh-183 ddh-184 kaga 02x
DDH 184 JS Kaga

izumo class helicopter destroyer aircraft carrier japan maritime self defense force jmsdf marine united ddh-183 ddh-184 kaga 21x flight deck

izumo class helicopter destroyer aircraft carrier japan maritime self defense force jmsdf marine united ddh-183 ddh-184 kaga 05x stern sea ram ciws
SeaRAM CIWS and Mk-15 Phalanx CIWS on the stern

izumo class helicopter destroyer aircraft carrier japan maritime self defense force jmsdf marine united armament ops-50 aesa radar searam ciws
superstructure details - OPS-50 AESA radar and forward SeaRAM CIWS
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