| Class overview | |
|---|---|
| Name: | 22DDH class destroyer |
| Builders: | IHI Marine United |
| Preceded by: | Hyūga class helicopter destroyer |
| Cost: | 113.9 billion yen (for construction of first unit to date) |
| Building: | 1 |
| Planned: | 2 |
| General characteristics | |
| Displacement: | 19,500 tonnes empty[1] 27,000 tons full load[2] |
| Length: | 248.0 m[1] |
| Beam: | 38.0 m[1] |
| Draft: | 7.5 m[1] |
| Depth: | 23.5 m[1] |
| Installed power: | 112,000 hp (84,000 kW)[1] |
| Propulsion: | 4 x COGAG, two shafts[1] |
| Speed: | 30 knots (56 km/h) [1] |
| Complement: | 970 including crew and troops[1] |
| Aircraft carried: | 7 ASW helicopters and 2 SAR helicopters[1] |
The 19500t class destroyer (DDH) is a new helicopter carrier class of the Japan Maritime Self-Defense Force (JMSDF). The ships of this class will be the largest surface combatants of the Japanese navy, superseding the Hyūga class helicopter destroyers in terms of size.
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The Ministry of Defense (MOD) first announced plans for the new class on November 23, 2009. This ship's primary mission is anti-submarine warfare but peacekeeping and disaster relief operations are also being considered.[3]
The ship will be able to carry up to 14 helicopters[citation needed] but 7 ASW helicopters and 2 SAR helicopters are planned for the initial aircraft complement. For other operations, 400 troops and 50 3.5t trucks (or equivalent equipment) can also be carried. The flight deck has 5 helicopter landing spots which allow simultaneous landing or take-off. 2 Phalanx CIWS and 2 SeaRAM are equipped for its defense.[1] The destroyers of this class were initially intended to replace the two ships of the Shirane class originally scheduled to begin decommissioning in FY2014.[3]
Forecast International has reported that some of the design changes with respect to the previous class are intended to support the Bell-Boeing V-22 Osprey and Lockheed Martin F-35 Lightning II aircraft,[4] although neither the MOD or the JMSDF have ever mentioned the possibility of introducing carrier-based aircraft.
The construction of the first ship of the class began in 2011 at an IHI Marine United shipyard in Yokohama.[5] with funding totaling 113.9 billion yen ($1.5 billion) being set aside in the fiscal 2010 budget for this purpose. Launch of the first of class is currently scheduled for 2015.
In September 2011, The Asahi Shinbun[6] reported that the Ministry of Defence is to proceed with a budget request calling for funds for the construction of the planned second unit in the class. This will come under the Defense Ministry's Mid-Term Defense Program FY2011-2015.
| Pennant no. | Name | Laid down | Launched | Commissioned | Homeport |
|---|---|---|---|---|---|
| DDH-XXX | ? (22DDH) | 27 January 2012[7] | ? | March 2015 | ? |
| DDH-XXX | ? (24DDH) | ? | ? | March 2017 | ? |
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