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Kusch

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the JASDF's new ASM-3 only has a range of 150km ,speed at Mach 3,and a high trajectory flight(which is easy to be intercepeted by SAM). i don't know whether it is a high-tech weapon.maybe it has a excellent jammer or flight computer?. the advanced anti ship missile should have a long range(more than 300KM), low RCS or hight speed (M>4).you either to be stealthy or to be speedy.

Fly when you ready

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  • 1 month later...

I recommend this persons entire channel, plenty of JASDF montages, and aviation montages in general.

Nice to see a JASDF thread though, as much as they are probably trying to get it out of service, I love seeing them operate the F-15.

This video is also good.

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  • 2 weeks later...

JADGE

 

radarmapjapan.jpg

 

The computerised network, known as JADGE (Japan Aerospace Defense Ground Environment), is operated and maintained by the ASDF. It was originally developed in the early 1960s from the handover of USAF stations, and some of the equipment dates back to these origins (e.g. AN/FPS-20), and became operational in 1989. Generally located on coastal mountain tops, the radar systems afford the ASDF full coverage of the Japanese islands.

Coverage of Japan's Radar Network

 

The above map was recreated and adapted from a book by Toshiyuki Shikata, retired GSDF Lt. General, Professor at Teikyo University and security advisor to the Governor of Tokyo, Shintaro Ishihara – a clear authority on Japanese military issues. It shows the location of ASDF sub-bases with radar installations, and their overlapping coverage at 50, 75, 130 and 200 nautical miles (note the map in the book, and the one above, is simply an approximation). What is clear is that at 200NM, Japan is fully covered by its air defense radars, although the full range of the newer installations, and limitations of the older ones are not included (they are presumably kept secret for national security).

 

The early-warning installations provided by JADGE also support electronic and electro-magnetic measurement intelligence (ELINT/ESM) collection stations – near Wakkanai, Nemuro, Okushiri, Seburijima, Fukuejima, Misawa and Miyakojima. There are reports of communications intelligence (COMINT) collection stations near Takaoyama, Fukuejima and Miyakojima.

 

Composition of Radar Network

 

The 28 integrated facilities around Japan that comprise JADGE are coordinated via the US-developed Link 16 Joint Tactical Information Distribution System (JTIDS)/Multifunctional Information Distribution System (MIDS) at ASDF Air Defense Command, currently being transferred to Yokota AFB from Fuchu Air Station.

 

The ASDF operates seven J/FPS-2 static three-dimensional radars, first installed in 1979 with a range of 200 km (approx. 100 nautical miles).

A further seven facilities operate the recently upgraded J/FPS-3A, a three-dimensional phased array radar with a search range of around 370 km (approx. 200 nautical miles) and height-finding at 150 km (approx. 80 nautical miles).

 

The most modern additions to the network are the six J/FPS-4 sites and the five J/FPS-5 sites, while older AN/FPS-20 and AN/FPS-6 radars operate at four sites (one per Air Defense Force).

 

Below is a break down of the types of radars at each installation, as gleaned from the Japanese ‘Radar Site’ page over at Wikipedia.

 

http://jsw.newpacificinstitute.org/?p=4011

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  • 1 month later...
I'm interested, Japan is developing armed version of reconnaissance helicopter OH-1? about the extension of the license production AH-64J also unclear

 

at the same time, China have hundreds of modern helicopters such WZ-10

 

15188229602_31b3892b4b_c.jpg

Type 96

+

oh1ninja_nam_kt-8.jpg

OH-1 Ninija

=

SOME AWESOME

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Japan plans missile-guidance system to optimize flightpaths and detect difficult tar

 

DF-JM-SEEKER_graph.jpg

An air-to-air missile using target-motion prediction will follow a straighter, shorter path to the target.

 

​Japanese defense technologists are working on an anti-aircraft missile guidance system that would improve reaction to stealthy targets by predicting their movements. By calculating where a maneuvering target will be, the system can detect low-radar-cross-section aircraft at longer ranges and optimize the flightpath of the missile, says the defense ministry’s Technology Research and Development Institute (TRDI).

 

The work is part of a TRDI technology-acquisition program for air-to-air and surface-to-air missiles and is being undertaken as China and Russia develop stealth aircraft.

 

The method by which the system improves detection is not spelled out, but appears to be based on the idea that a seeker will be more successful if its scanned field is narrower. The sensor, when activated for terminal guidance, is more likely to pick up a fleeting target if, thanks to a fairly precise prediction of the enemy aircraft’s location, it can concentrate on a smaller patch of sky. TRDI’s illustrations show the technology employed by active-radar missiles.

 

The project began in 2013 and is due to end in 2017, says TRDI. A basic design, Guidance Unit Type 1, was reviewed in April, with ground testing planned later in 2015 to support the development of a Guidance Unit Type 2. More ground testing is planned for 2017, along with a “physical simulation test.” Key elements of the system include “target-motion estimation filter technology” and “guidance-navigation technology based on target-motion prediction.”

 

Apart from improving detection, the Japanese aim to guide the missile on a shorter, and thus faster, trajectory.

 

The first air-to-air and surface-to-air missiles, in the 1940s and 1950s, simply pointed at their targets. Because the targets moved, the missiles followed a curved path. With the introduction of proportional navigation, later weapons headed toward where targets maintaining course and velocity would be, although changes in target direction and speed would still force the missile to change course, wasting energy, losing range and extending engagement time.

 

TRDI’s diagrams show that its system goes a step further by predicting where a turning target will be. Ideally, the missile should adjust for changes in target velocity too, but TRDI does not mention such a feature.

 

With a target directly ahead of the firing aircraft and both flying at 12,000 meters (40,000 ft.) altitude, application of target-motion prediction reduces the flight time of the missile to intercept by 12%, to 13.2 sec. from 15.0 sec., TRDI says.

 

Missile-seeker and guidance technology is closely guarded. Other countries may be working on the same idea or even have it in service. But it is at least new to Japan. In 2013 European missile-maker MBDA was working on a system intended to increase the effectiveness of air-to-air missiles by predicting the target’s maneuvers. Details are scanty, but the algorithms were supposed to make the missile more effective and give the pilot a better idea of the likelihood of a kill and suitable timing for disengagement.

 

It is not clear what role the firing aircraft or ground-launch apparatus plays in TRDI’s new guidance system.

 

The planned weapons intended to benefit from Japan’s work are the NSAM, a medium-long-range surface-to-air missile, and the NAAM, the successor to the current Mitsubishi Electric AAM-4 medium-range air-to-air missile. The latest version of the latter, the AAM-4B, has a seeker with an active, electronically scanning array (AESA). That technology alone improves performance against stealthy targets, because it can transmit greater radio power for a given antenna size. Moreover, Japan, like other countries, is working on radars using gallium-nitride transistors, which further increase transmission power.

 

For target-location prediction, an AESA radar, capable of instantaneous adjustment of beam and scanning field, would offer the advantage of agile switching to a newly estimated location. Conceivably, it might also instantaneously tighten or widen the scanning field according to the confidence of a location prediction.

 

TRDI intends that the NSAM surface-to-air firing apparatus will draw information not only from radars specifically assigned to it, as would be the case in an older system, but also from a single integrated air picture built up by many radars on a network. In diagrams explaining the concept, TRDI shows a traditional system with two radars that fail to see the target, while on an integrated network, the target is detected and tracked, thanks to the availability of different types of radars looking from different directions. Some are remote from the launcher.

 

Sensor data would be compressed before being sent on to the network, TRDI says.

 

Apart from the plan to incorporate target movement prediction, no information about NAAM appears to have been made available.

 

http://www.w54.biz/showthread.php?1157-Japanese-Airforce-2011-and-onwards/page6#post55744

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It was due to fly for almost a year. What hapened?

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The Defense Ministry was ordered Thursday by the Tokyo High Court to pay all of about 35 billion yen in damages sought by Fuji Heavy Industries Ltd. for cancelling orders for helicopters in 2008. The high court overturned a Tokyo District Court ruling last year that rejected the Japanese manufacturer's demand seeking the ministry pay licensing fees and initial investment expenses to produce AH-64D attack helicopters.

 

According to the high court ruling, the ministry decided in 2001 to procure 62 attack helicopters, prompting Fuji Heavy to make payments needed to manufacture them, including license fees to Boeing Co. of the United States.

As the ministry did not fully pay for the initial investments, Fuji Heavy had planned to recover the cost by dividing the fees into 62 parts to be added to each aircraft's bill.

 

But the ministry decided not to procure any more of the helicopters after ordering a total of 10 units, citing tight budget conditions.

"Since the state behaved to make (the company) believe as if it would pay all of the initial investment expenses, Fuji Heavy made the contract based on it," Presiding Judge Koichi Tamura said.

 

"Even if the plan changed, the premise of the contract should be legally protected," the judge said.

 

The high court ruling sharply contrasts with the lower court ruling that said "The state has no obligation to pay as there is no custom or agreement that the state would pay all of the initial investment expenses."

"It is truly regrettable that the severe ruling was given," a Defense Ministry official said, adding the ministry will respond appropriately after studying the ruling.

 

http://mainichi.jp/english/english/newsselect/news/20150130p2g00m0dm024000c.html

 

only 10 apaches, non armed Ninja, stale AH-1J

and pay penalty 35 billion yen ≈ $298 million

JUtNaQqrCaA.jpg

 

Japan’s Supreme Court has upheld a lower court ruling that ordered the Japanese government to pay Fuji Heavy Industries damages after a promised contract for 62 AH-64Ds were downsized to just 10 airframes.

 

The Japanese government will now have to pay 35 billion yen to Fuji and the decision is final.

 

http://alert5.com/2015/12/20/japans-supreme-court-upheld-decision-to-pay-damages-to-fhi-over-ah-64d-deal/

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  • 4 weeks later...

cant believe no one mentioned this yet. First taxi tests of the ATD-X shin-shin?

 

kYUfgepOPys

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To whom it may concern,

I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that.

Thank you for you patience.

 

 

Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..

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Finally! That was a fast take off!

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RAM: 32 GB 4266Mhz (two 2x8 kits) of trident Z RGB @3600Mhz CL 14 CR=1T

MOBO: ASUS CROSSHAIR HERO VI AM4

GFX: GTX 1080Ti MSI Gaming X

Cooler: NXZT Kraken X62 280mm AIO

Storage: Samsung 960 EVO 1TB M.2+6GB WD 6Gb red

HOTAS: Thrustmaster Warthog + CH pro pedals

Monitor: Gigabyte AORUS AD27QD Freesync HDR400 1440P

 

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  • 7 months later...

To whom it may concern,

I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that.

Thank you for you patience.

 

 

Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..

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  • 5 months later...

To whom it may concern,

I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that.

Thank you for you patience.

 

 

Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..

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