Japan Military News, Reports, Data, etc.

kwaigonegin

Colonel
Do we have a date for when DDG-1002 will be installed with a rail gun? Will it have a rail gun at commissioning, or will it be part of a refit later in its life.

Anyway, I agree with Shen's overall assessment regarding the 27DD class -- it's basically an upgraded, slightly larger Atago with room for rail guns and lasers when they emerge. Like the rail gun and DEW situation for other navies pursuing them, the question is when such subsystems will be mature enough to be fitted onto their ships.

But all this aside, I'm interested in just how much power the 27DD can generate, and whether they're looking to adopt more powerful PARs.
As I said before, Flight III burkes have more power generation and cooling than previous flights, mostly for their more powerful AMDRs. Logically, it should follow that they probably don't have much juice left for rail guns and lasers without substantial modification and/or removal of other subsystems for more volume to provide power generation.
So if 27DD really is intended to be fitted with lasers and rail guns later, I wonder if it will also have improved PARs like AMDR, or if they'll stick with a SPY-1 variant... i.e.: do they have the power for not online rail guns and lasers, but also a new generation PAR?

I don't know about the DD 27 however the flt III Burkes do not have enough power generation for rails. Max output is still,less than 20 MWatts which is not enough.
 

SamuraiBlue

Captain
As I said before, Flight III burkes have more power generation and cooling than previous flights, mostly for their more powerful AMDRs. Logically, it should follow that they probably don't have much juice left for rail guns and lasers without substantial modification and/or removal of other subsystems for more volume to provide power generation.
So if 27DD really is intended to be fitted with lasers and rail guns later, I wonder if it will also have improved PARs like AMDR, or if they'll stick with a SPY-1 variant... i.e.: do they have the power for not online rail guns and lasers, but also a new generation PAR?
Although this is just a personal speculation without much to back it up, I do not think Japan would be recieving AMDR due to the fact that Japan had declined joint development project that had been made by the US so the 27DDG would probably be only be equipped with SPY-1. As for the rail gun and/or direct energy gun, I haven't heard anything about it here in Japan.
I will try and see if I can dig up anything in the weekend.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
Although this is just a personal speculation without much to back it up, I do not think Japan would be recieving AMDR due to the fact that Japan had declined joint development project that had been made by the US so the 27DDG would probably be only be equipped with SPY-1. As for the rail gun and/or direct energy gun, I haven't heard anything about it here in Japan.
I will try and see if I can dig up anything in the weekend.

The way I see it, JMSDF has the option of going with another SPY-1 variant, or an upsized variant of the APAR they have on their akizukis... I would be surprised if JMSDF got AMDR by 2021 when 27DD are said to be commissioned, as that is only a few years later than when USN would get it on flight iii burke... and typically the JSDF gets the newest US toys quite a few years after they are first inducted into the US military.

I wouldn't be surprised if Japan doesn't have a rail gun and laser programme going; every major military in the world probably has one under fairly advanced development
 

kwaigonegin

Colonel
Although this is just a personal speculation without much to back it up, I do not think Japan would be recieving AMDR due to the fact that Japan had declined joint development project that had been made by the US so the 27DDG would probably be only be equipped with SPY-1. As for the rail gun and/or direct energy gun, I haven't heard anything about it here in Japan.
I will try and see if I can dig up anything in the weekend.

I think it would be foolish for next generation jmsdf aegis destroyers to not have AMDR capabilities. Did japan decline joint project with just Raytheon or 'any' US company? THere are a few other options as well.
LM and NG make radars with fairly similar capabilities.
 

SamuraiBlue

Captain
I think it would be foolish for next generation jmsdf aegis destroyers to not have AMDR capabilities. Did japan decline joint project with just Raytheon or 'any' US company? THere are a few other options as well.
LM and NG make radars with fairly similar capabilities.
IT was a request from the US government.
The main feature of AMDR is to utilze Gallium nitride base electronic curcuits that Japan had already developed on her own and now being utilized in FCS-3A.
Japan had a very bad experience in these so-called "Joint" developments and fears that the US will take all the required data and place it into a black box and sell it back without any access.
 

shen

Senior Member
The way I see it, JMSDF has the option of going with another SPY-1 variant, or an upsized variant of the APAR they have on their akizukis... I would be surprised if JMSDF got AMDR by 2021 when 27DD are said to be commissioned, as that is only a few years later than when USN would get it on flight iii burke... and typically the JSDF gets the newest US toys quite a few years after they are first inducted into the US military.

I wouldn't be surprised if Japan doesn't have a rail gun and laser programme going; every major military in the world probably has one under fairly advanced development

Replacing the SPY-1 with an indigenous radar would need the U.S. to release source code for Aegis. Good luck with that.
 

shen

Senior Member
Depends on what you mean by many years.

This is probably something that could be considered true for Japanese vessels.

But the US will live fire test the rail gun at sea next year.

The third Zumwalt, the USS Lyndon B. Johnson, DDG-1002, which is scheduled to be launched in 2018, and scheduled to be commissioned in 2020, is the first vessel where they are planning to have an operational rail gun in one of the gun positions when it becomes operational.

going by the article I quoted, more than 10 years for an operational gun.
 

Jeff Head

General
Registered Member
going by the article I quoted, more than 10 years for an operational gun.
Good enough. I guess we will wait and see.

I expect that the 3rd Zumwalt will be not only testing, but using an operational rail gun before 2025. Anywhere from 3-5 years earlier.

As to the Japanese...the 2025 time frame may well be in the ball park if they move that way.

General Atomics has two rail guns they have been working on. The 32 mj weapon for ONI that is the 155mm gun for the Zumwalt. They also have another weapon, the Blitzer, which they are testing at 10+ mj, which will be for other weapons, possibly up to 127mm.

GA has indicated that they intend to provide a rail gun to fit on the newer Burkes. I presume this means that either they, or the Japanese with their own development, could do the same on the new Atagos.

But...as I say...time will tell.
 

Ultra

Junior Member
Ultra, the pictures and the link to the pictures were posted just on the last page... and it's been the topic of discussion over the last page or so as well, check for reposts plz.

Yeh I just realized that LOL!

Anyway, I think Japan has already got almost all the components needed to develop these weapon systems.

The world's largest and most powerful laser is actually not a weapon but the
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NIF_big.jpg


Which tries to create fusion by using laser. NIF aims to create a single 500 terawatt (TW) peak flash of light that reaches the target from numerous directions at the same time, within a few picoseconds. One of the most critical component is the focusing lens - they had to be PERFECT, and they are developed and supplied by the Japanese optics conglomerate Hoya.

This compare with the Laser Weapon System or LaWS for the USN which outputs a comparatively small 15–50 kW for engaging small aircraft and high-speed boats (It generates 33 kW in testing, with follow-on deployable weapons generating 60–100 kW mounted on a
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or
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to destroy fast-attack boats, drones, manned aircraft, and anti-ship cruise missiles out to a few miles).
 
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