Japan Military News, Reports, Data, etc.

Aug 9, 2017
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what is she? found in Twitter
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新艦艇キターー!!! 三菱重工 主請、三井造船 下請。
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now found these:
UthNEJg3

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FORBIN

Lieutenant General
Registered Member
Well armed a FFG, so only 2 Asahi/25 DD coz also 2 new Atago variant/27DD in service 1st 2020 and they need more to maintain a Fleet of 49 helos carriers/DDG/DD/FF it means in average 1.5 new ship by year.

AEGIS like possible ? as the last DD classes ?

Japan's ATLA Selected MHI & Mitsui to build 30DX Surface Combatant for JMSDF

Japan's Acquisition Technology and Logistics Agency (ATLA)
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the launch of a new surface vessel programme called 30DX for the JMSDF. Mitsubishi Heavy Industries (MHI) was selected as prime contractor while Mitsui Engineering & Shipbuilding (Mitsui) was selected as subcontractor. ATLA is a branch of Japan's MoD created in 2015 to "ensure technological superiority and respond to operational needs smoothly and quickly".

ATLA also announced that MHI would build the first vessel and Mitsui the second unit of the new class. Construction of the first two units is expected to begin in 2018; The series should consist of eight units built in pairs. Unit cost of this new class is estimated at 50 billion yen (about 390 million Euros). Mitsubishi Nagasaki Shipyard and Mitsui Tamano Shipyard are set to be in charge of the construction.

The original plan considered a design similar to the American LCS concept, but finaly it looks like ATLA decided on a more conservative plan. MHI has been working (with its own funds) on the 30FF concept since 2015: A 3000 tons frigate capable of speeds in excess of 40 knots. However the latest ATLA CGI looks quite different compared to the 30FF design. The three main factors driving the 30DX design appear to be affordability, miniaturization/automation and multi-mission capabilities.

The 30DX will follow the latest
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. It will be quite smaller and some of its mission set include mine warfare. 30DX is expected to replace both the Asagiri-class destroyer (8 units built in the 1980ies) and the Abukuma-class destroyer escort (6 corvettes built in the late 1980ies/early 1990ies).

According the ATLA, the 30DX is set to have a standard displacement of approximately 3,900 tons, a length of 130 meters and width of 16 meters. The top speed is set to be in excess of 30 knots. The propulsion system will be in CODAG arrangement with 1x Rolls-Royce MT30 gas turbine and 2x MAN diesel engines.

In terms of weapons, the vessel will be fitted with a BAE Systems 5 inch Mark 45 naval gun system, VLS cells for surface to air missiles (16 or 24), 8x anti-ship missiles (likely
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based on the shape of the cannisters), a Raytheon SeaRAM short range missile launcher on top of the helicopter hangar, torpedo
and decoy launchers.

As far as sensors are concerned, the 30DX is fitted with a multi-functionr radar (in an integrated mast), Electro Optic sensors, variable depth sonar and passive towed array as well as a hull mounted mine

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SamuraiBlue

Captain
Japan plans installation of land-based Aegis missile defense system amid North Korea threats

WASHINGTON – The Defense Ministry plans to introduce a land-based Aegis missile defense system to respond to North Korea’s missile threats and will seek funding in the next fiscal year to cover system design costs, a government source said Wednesday.

The ministry had been considering a budgetary request to conduct studies on the installation of the so-called Aegis Ashore system, but expedited the schedule amid a series of ballistic missile test launches by Pyongyang, according to the source.



The ministry also plans to budget a space unit that will be created within the Self-Defense Forces to protect satellites used by Japan and the United States to detect ballistic missile launches, among other purposes.

Defense Minister Itsunori Onodera is expected to explain the plans to the U.S. government during his current visit to Washington, with Foreign Minister Taro Kono, for talks Thursday with U.S. counterparts.

In the budgetary request, to be submitted by the end of August, the ministry will leave open the actual sum it expects to pay for design of the Aegis Ashore program, because of the need for consultations with the United States, the source said...... to read more
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Jeff Head

General
Registered Member
all of this is really good stuff.

Those eight new DDGs are going to be nice and I am glad to finally see the specs. I hope they keep 24 VLS, but 16 will certainly work.

And, getting AEGIS ashore is a GOOD thing. You have very good terminal ABM defense with that combo...and terminal is really a misnomer because it extends over quite an area.

If Japan stationed four of those installations across from Korea, and then had it BMD capable ships available, they are going to be able to knock down pretty much anything the madman might launch at them.
 

SamuraiBlue

Captain
Although not related directly to any military technology here are some links to recent R&D related to fuel cell and Li-Ion batteries that can be utilized to further advance subs.

First is Li-Ion batteries;

GS Yuasa to double EV range with new battery from 2020: Nikkei

TOKYO (Reuters) - Japan's GS Yuasa Corp will begin mass-producing as early as in 2020 a new lithium-ion battery that would double the range of electric vehicles while keeping prices steady, the Nikkei business daily reported on Tuesday.

The report sent the company's shares up as much as 15 percent in early trade.

The new battery, to be developed by a joint venture with Mitsubishi Corp and Mitsubishi Motors Corp, will be supplied to Japanese and European automakers, the paper said.

GS Yuasa is scheduled to be the main supplier of Li-Ion batteries for Soryu MkⅡsubs so these ultra Hi energy density batteries will be equipped on the MkⅡas well enhancing endurance distance.

Another is the latest development in Fuel Cell technology by Mitsubishi Hitachi Power;

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In the link it talks about their latest large scale fuel cells for commercial facilities.
On page 7 you can see a 250kW fuel cell progression which at first occupied 140m^2 reduced to 40m^2 in 9 years.
In the future as shown in page 11 they are going to develop a 1.3MW class fuel cell. That is enough power to drive the Soryu class at 10~15kts.

Last is hydrogen storage;

This is not from Japan but has a great significance in fuel cell AIP.

New process generates hydrogen from aluminum alloy to run engines, fuel cells

A Purdue University engineer has developed a method that uses an aluminum alloy to extract hydrogen from water for running fuel cells or internal combustion engines, and the technique could be used to replace gasoline.

The method makes it unnecessary to store or transport hydrogen - two major challenges in creating a hydrogen economy, said Jerry Woodall, a distinguished professor of electrical and computer engineering at Purdue who invented the process.

"The hydrogen is generated on demand, so you only produce as much as you need when you need it," said Woodall, who presented research findings detailing how the system works during a recent energy symposium at Purdue.

The technology could be used to drive small internal combustion engines in various applications, including portable emergency generators, lawn mowers and chain saws. The process could, in theory, also be used to replace gasoline for cars and trucks, he said.

Hydrogen is generated spontaneously when water is added to pellets of the alloy, which is made of aluminum and a metal called gallium. The researchers have shown how hydrogen is produced when water is added to a small tank containing the pellets. Hydrogen produced in such a system could be fed directly to an engine, such as those on lawn mowers.

"When water is added to the pellets, the aluminum in the solid alloy reacts because it has a strong attraction to the oxygen in the water," Woodall said.

Read more at:
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With this you don't need the a cryo tank to store liquid hydrogen on subs.
 
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inside:
...

This is not from Japan but has a great significance in fuel cell AIP.


With this you don't need the a cryo tank to store liquid hydrogen on subs.
quoting
May 16, 2007
stuff, so let me ask you
SamuraiBlue
how old a link needs to be so that you considered its content, full of "could", "if", "would", to be boondoggle? LOL
twenty years perhaps?
 

SamuraiBlue

Captain
inside:

quoting
May 16, 2007
stuff, so let me ask you
SamuraiBlue
how old a link needs to be so that you considered its content, full of "could", "if", "would", to be boondoggle? LOL
twenty years perhaps?
Aughh, you need other parts to close the circle.
Just having a storage system is only a part of it.
You ALSO need a strong fuel cell that LASTS.
Do you understand what I am talking about?
 
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