New helicopter carrier for Japan

[Wall83]

On the 23 of November the Japan Maritime Self-Defense Force announced plans for a new large helicopter carrier (called helicopter destroyer for political reasons).
The new ship will be about 250 meters long and have a dicplacement of about 20,000 tons empty and 30,000 tons with full load.

I wounder how big you can make a ship and still call it a destroyer,

Japan to build fleet's biggest helicopter destroyer to fend off China - Telegraph
Naval Technology - Japan to Build New Helicopter Destroyer

 

[Moebius]

Ship types are not defined just by size. You have to take into account what the ships tasks will be, but in this case you could call it a helicopter carrier and not be wrong. If we defined by just size, basically every modern warship should be moved up one ship type in comparison to their predecessors: frigate=destroyer, destroyer=cruiser.

Besides, names don't matter anyway:

What's in a name? that which we call a rose
By any other name would smell as sweet.

 

[kato]

If we defined by just size, basically every modern warship should be moved up one ship type in comparison to their predecessors: frigate=destroyer, destroyer=cruiser.

Actually, to the pre-pre-predecessor. I.e. pretty much anything between 3.000 and 10.000 tons could very well be classed a light cruiser, anything above a heavy cruiser. The "corvettes" today are the size of pre-WW2 destroyers.

 

[1805]

Just out of interest is this Carrier a one off or a large class? Japan really is a sleeping giant.

 

[kev 99]

Just out of interest is this Carrier a one off or a large class? Japan really is a sleeping giant.

Only 1 proposed at the moment, but the Hyuga and its sister ship Ise are replacing both the DDHs of the Harune class, this is supposed to replace the first of the 2 strong Shirane class. It would be logical to assume that this could be the first of 2.

 

[1805]

amazing how 20000t was huge a few years back but the number of countries now building c30000t assault/carriers I wonder how many will operate F35s I suspect not Japan's. I I so hope the RN gets both of its 65000t carriers.

 

[Wall83]

Found a new article on the planned "destroyer".
View attachment 4143

Rumors that the Japan Maritime Self-Defense Force’s third “aircraft carrying destroyer” would mark a major improvement in size and capability over the Hyuga class ships now entering service have been confirmed. The new 22DDH will be 248 meters long and 39 meters in beam, and displace more than 24,000 tons. This makes her almost 50 percent larger than the Hyuga class and places an unbearable semantic strain on the use of the term “destroyer” to describe these ships. To put the size of the ship into context, she is comparable with a World War II Essex-class fleet carrier.

Illustrations of the 22DDH show her to be a full-fledged helicopter carrier with no real destroyer characteristics. The superstructure is very similar to that of the Hyuga class with the difference that the 01 deck is extended forward, probably to accommodate a vertical launch silo for air defense missiles. The point defenses of the new ships are more than doubled, with three Phalanx Mk 15 mountings and two RAM launchers replacing the pair of Phalanx mounts on the older ship. Significantly, while one of the Phalanx mounts on the Hyuga is situated forward on the flight deck, and thus obstructs fixed-wing operations, the 22DDH has all of its mounts located on sponsons clear of the flight deck itself.

The flight deck layout on the 22DDH differs significantly from that of the Hyuga class. One of the lifts has been moved from the centerline to the deck-edge position. The added width of the flight deck has been used to shift the axis of air operations clear of the remaining centerline elevator. The number of munitions elevators feeding the flight deck has been increased from two to four.

A vertical launch silo built into the rear of the flight deck on the Hyuga has been removed, once again reducing obstructions to flight operations. Flight deck operations capacity has been increased from two to seven helicopters.

Japanese accounts suggest that one of the reasons for the drastic increase in size of the 22DDH design is a planned shift to the V-22 Osprey as the primary air group element for these ships. It is not clear whether these would be replacements for or supplemental to the SH-60Ks that equip the Hyuga class. These accounts also make it clear that the F-35B short takeoff and vertical landing variant of the Joint Strike Fighter is seen as a key system for these ships. Apparently, provision for the operation of UAVs is being included within the design.

defence.professionals | defpro.com

 

[StingrayOZ]

I think they should call them frigates. Australia's 7,000t AWD is called a frigate in spain.
Who will be the first to build a 30,000t frigate!

 

[Belesari]

Found a new article on the planned "destroyer".
View attachment 4143


defence.professionals | defpro.com

Thats interesting saw that article a few days ago. I didnt realize anyone was going to buy the osprey but us in the US. Good.

 

[agc33e]

I think they should call them frigates. Australia's 7,000t AWD is called a frigate in spain.
Who will be the first to build a 30,000t frigate!

Spanish f100 is 6200 tonnes at full load, frigate is normally more related to the weight, while destroyer is more associated to the weapons. For ex the italian cavour or the charles de gaulle have vertical lauchers for the aster15 which are short range missiles, with those missiles i would call them "destroyers", maybe frigates...

 

[Wall83]

The first vessel in the class was laid down in January 27.

国内最大ã®ãƒ˜ãƒªã‚³ãƒ—ターæ*載è*·è¡›è‰¦ã®èµ·å·¥å¼ã‚’開催｜2011年度｜プレスリリース｜æ*ªå¼ä¼šç¤¾IHI

Google translate

Co., IHI Marine United (President: 蔵原 Narumi, Head Office: Minato-ku, Tokyo coast, IHIMU below) today, January 27 at the Yokohama Plant, helicopter escorts FY2010 plan (DDH) in groundbreaking ceremony was held. The ceremony was attended by the following relations Mr. Sato Keiji Ono sea 1st South Kanto Defense Bureau Deputy Director, Ministry of Defence Procurement.

This ship, the destroyer "Hyuga" "Ise" as an advanced, ordered in February 2011, is the opening of the whole deck type destroyer helicopter 19,500 tons standard displacement. As MSDF escort is over the maximum amount of effluent standards, equipped with helicopters to spot five minutes from this ship. Moreover, in addition to the contingency of our country this ship, our mission is also expected as diverse as transportation and medical activities in the GSDF disaster relief and international disaster relief activities. Passing vessel, we are planning a year-end 2014.

IHIMU is the construction of warships and other sophisticated techniques are needed in the future based on the technical experience gained through the construction of destroyers, will continue to build high-value vessels.

 

[Wall83]

The first ship, the Izumo, was launched today.
Didnt see this coming so soon.

[nomedia="http://www.youtube.com/watch?v=ZmHpN63FFck"]Japan: largest warship unveiled, Izumo-class helicopter destroyer launched in Yokohama. Aug 6, 2013 - YouTube[/nomedia]