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Japanese next generation fighter study (aka i3, F-3)

NUSNA_Moebius

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The XF9-1 could be an interesting retrofit for Japanese F-15s. A high bypass derivative would make sense too.
 

FighterJock

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Would maybe see Japan trying to sell the F-3 on the market to allied countries, only a couple could afford.

India could buy a few F-3 to supplement the MCA whenever that get's built and delivered to frontline squadrons.
 

Deino

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Oh please .... this is as likely as Germany will develop independently a 6th generation type without any foreign partner and Great Britain would happily purchase it as the €F-successor! ;)

Japan developing a new fighter alone is a major issue but given India's more than unique - to express it mildly - purchase and acquisition process especially demanding either "made in India" or to get full ToT, it is impossible.
 
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Flyaway

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Oh please .... this is as likely as Germany will get develop independently an 6th generation type without any foreign partner and Great Britain would happily purchase it as the €F-successor!

Japan developing a new fighter alone is a major issue but given India's more than unique - to express it mildly - purchase and acquisition process especially demanding either "made in India" or to get full ToT, it is impossible.
Also there are likely to be technologies in it making it undesirable to sell it to a whole host of countries.
 

stealthflanker

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Japan widens foreign access to F-X fighter project


Uh...kind of difficult choice between UK and US. As both not only have their own 6th Gen but also, if any prospect of export desired, it would be difficult to do so as client country might not necessarily serve the interest of either or both US-UK based firms. The US for example may deny export license for components which could be crippling the prospect.
 

Bhurki

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Japan widens foreign access to F-X fighter project


Uh...kind of difficult choice between UK and US. As both not only have their own 6th Gen but also, if any prospect of export desired, it would be difficult to do so as client country might not necessarily serve the interest of either or both US-UK based firms. The US for example may deny export license for components which could be crippling the prospect.
US largely considers itself responsible for maintaining territorial integrity of Japan through its own security umbrella.

In an age of ever growing threat from China, the lawmakers in US may have enough impetus to allow the sale of a few complementing technologies that japan has a hard time coming through on, given that japan is largely going solo on the program which will help share the security burden with the US forces.

In the past, the sale of these controlled technologies (F-22) was not encouraged since the threat criticality in the region was low, and focus on NATO was comparitively higher.

However , the changing focus of US armed forces and their doctrines may definitely result in equivalent changes in sharing responsibility and work share with allies.
 

stealthflanker

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US largely considers itself responsible for maintaining territorial integrity of Japan through its own security umbrella.

In an age of ever growing threat from China, the lawmakers in US may have enough impetus to allow the sale of a few complementing technologies that japan has a hard time coming through on, given that japan is largely going solo on the program which will help share the security burden with the US forces.

In the past, the sale of these controlled technologies (F-22) was not encouraged since the threat criticality in the region was low, and focus on NATO was comparitively higher.

However , the changing focus of US armed forces and their doctrines may definitely result in equivalent changes in sharing responsibility and work share with allies.

The problem is not the US-Japan relationship. It will start when Japan Wants to Export the fighter overseas. e.g India or other country. The US May relax export license to Japan... BUT they can deny or even meddling around when Japan wants to export F-3 into some other nation.

And let's remember that US also sells F-35. Now let's assume India is holding a Stealth fighter tender and US offers F-35 while Japan offers F-3. India choose F-3. US can then proceed to apply pressure by denying components to India over some perhaps a make up reason. I believe this is something the Japan dont want.
 

Bhurki

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US largely considers itself responsible for maintaining territorial integrity of Japan through its own security umbrella.

In an age of ever growing threat from China, the lawmakers in US may have enough impetus to allow the sale of a few complementing technologies that japan has a hard time coming through on, given that japan is largely going solo on the program which will help share the security burden with the US forces.

In the past, the sale of these controlled technologies (F-22) was not encouraged since the threat criticality in the region was low, and focus on NATO was comparitively higher.

However , the changing focus of US armed forces and their doctrines may definitely result in equivalent changes in sharing responsibility and work share with allies.

The problem is not the US-Japan relationship. It will start when Japan Wants to Export the fighter overseas. e.g India or other country. The US May relax export license to Japan... BUT they can deny or even meddling around when Japan wants to export F-3 into some other nation.

And let's remember that US also sells F-35. Now let's assume India is holding a Stealth fighter tender and US offers F-35 while Japan offers F-3. India choose F-3. US can then proceed to apply pressure by denying components to India over some perhaps a make up reason. I believe this is something the Japan dont want.
Realistically, such a situation where Japan and US run into competition for foreign contracts is extremely far fetched.

We haven't seen any major defense exports by Japan even in areas where they hold all IP rights. Considering that, most of cutting edge developments in japan's defense sector are most likely meant to stay within their borders.
 

TomcatViP

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Given that we can't reasonably today envision another exportable stealth design from the USA other than the F-35 (and this idea alone would have been inconcevable only 20 years ago) it would be doubtful that a competition see a much larger design as the Japan F3 compete against the F-35. Even in India.

However, in a near future Japan's F3 could be seen as a potent opponent to the Su-57 or an export version of the J-20 on the market.
 

kaiserd

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Further to comments above Is there ANY significant indication that Japan is in any way particularly focused on or prioritising the export potential of the”F-3”?
To an extent that would prevent co-operation/ technology share with the US?
I’m not aware of any, and any such course of action appears highly unlikely and would be likely highly self-defeating given the major and certain down-side and highly uncertain and limited up-side of adopting such a course.
 

kaiserd

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Japan widens foreign access to F-X fighter project


Uh...kind of difficult choice between UK and US. As both not only have their own 6th Gen but also, if any prospect of export desired, it would be difficult to do so as client country might not necessarily serve the interest of either or both US-UK based firms. The US for example may deny export license for components which could be crippling the prospect.
Apart from that it’s almost 99 percent certain that Japan would/ will go for the US and not the UK.
Objectively really not that hard a choice at all...
 

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Ejajjs

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Minister of Defense Taro Kono said at a regular press conference today that Mitsubishi Heavy Industries, Ltd. will apply for the next fighter system integration, and plans to contract in October after examination.

He also stated that there were seven foreign companies wishing to support integration, but at this stage the company name was not disclosed. EgzBPIzU8AMs0Q4.jpeg.jpg
 

AGS-1787

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Did they pick the yf-23 lookalike layout? It would be nice to see it become a reality.
 

Ejajjs

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2021 defence budget :
next generation fighter-related expenses 77.2 billion Yen=0.737 billion dollars
Development cost 58.3 billion yen
Avio integration 6.3 billion yen
Unmanned aerial vehicle 1.6 billion yen
Engine design also started
A wide-area radar technology development jointly between Japan and the UK 4.1 billion yen



source: IMG_20200930_230310.jpg
EjJYMJcVkAoScWE.jpeg.jpg
 
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stealthflanker

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The wide area radar one looks interesting.

I'm curious how they would implement it. It is possible to electronically split the Array into smaller "radar" But power aperture product and later detection range will suffer. Unless somehow a way can be devised so that each of the small antenna can have full gain of the aperture during receiving. Another concern is how one would weigh the radiation pattern for "multiple simultaneous beam" like that.
 

Ares

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Japan MoD revealed the detail of that wide-area radar jointly developing with the UK.

Basically, it's a Full Digital AESA that every radar element has Digital Beam Foaming capability. Element level DBF technology can constant and instantaneous warning and detection of radio waves over the entire coverage area, which is not possible with existing radars.

This type of radar has already been developed for the naval ship or fixed ground surveillance use and is close to actual deployment even(ex. Thales SEA FIRE, Leonardo Kronos Powershield), but none of have yet been considered for aircraft because the radar modules, as well as the backend processors, become very huge and complicated.

Seems like the UK and Japan have found a breakthrough to make them smaller.

 

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stealthflanker

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Japan MoD revealed the detail of that wide-area radar jointly developing with the UK.

Basically, it's a Full Digital AESA that every radar element has Digital Beam Foaming capability. Element level DBF technology can constant and instantaneous warning and detection of radio waves over the entire coverage area, which is not possible with existing radars.

This type of radar has already been developed for the naval ship or fixed ground surveillance use and is close to actual deployment even(ex. Thales SEA FIRE, Leonardo Kronos Powershield), but none of have yet been considered for aircraft because the radar modules, as well as the backend processors, become very huge and complicated.

Seems like the UK and Japan have found a breakthrough to make them smaller.


Interesting. Yeah. Currently due to size limitations of AESA elements , cost of Analog to Digital converter and the fact airborne radars operates at frequency too high for A/D sampling it's only practical to implement the DBF into Sub-arrays. The limitations come from the fact that each "digital channel" have its own receivers, mixers and of course the A/D converters. These needs space and power.

However, being able to perform a true element level AESA opens up advantages, especially if paired with something like Photonic true time delay. e.g

1.Use of MLE (Maximum Likelihood Estimation) Angle Finding technique. This could replace the traditional monopulse for angle tracking of target, Thus make the radar immune of more resistant to low angle target tracking error and even Cross Eye jamming technique which specifically target monopulse radar implementation.

2.Considering that now each elements have ADC, each receiver output can be digitized, processed and then beam can then formed digitally, i'm still not sure how it would affect search time. However it might allow much higher jamming or sidelobe resistance. The Radar may not need any additional guard channel, each element can now act as guard channel. Thus the radar in theory at least can cancel/null N-1 amount of jammers where N is the number of elements.
 

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helmutkohl

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hot of the press

translation
its official!

Japanese DoD gives MHI contract to build the new stealth plane
goal is to replace F-2 and get it in service by 2035
MHI will be in charge of the overall program
engine by a subcontractor (they didnt specify whom)
and they are looking for an overseas partner
 

NUSNA_Moebius

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Good luck to them but I'm expecting the usual list of delays + cost overruns, and with it low procurement numbers that tend to plague Japanese projects.
 

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Good news for Japan. I am waiting to see what the chosen design is for the new fighter.
I hope its an interesting design

but given their past designs (F-1 looking like a jaguar, F-2 like an F-16, C-2 like a mini C-17, etc).. I wouldn't be surprised if we adopted something very conservative and low risk, especially if they want to get it out soon. which unfortunately means, something that looks like a Lockmart design.
 

FighterJock

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Good news for Japan. I am waiting to see what the chosen design is for the new fighter.
I hope its an interesting design

but given their past designs (F-1 looking like a jaguar, F-2 like an F-16, C-2 like a mini C-17, etc).. I wouldn't be surprised if we adopted something very conservative and low risk, especially if they want to get it out soon. which unfortunately means, something that looks like a Lockmart design.
I too hope that it is a cutting edge design helmutkohl, but I too fear that it is going to be based on an existing Lockheed product. Several of the designs that were revealed were takeoffs of the F-22.
 

Ares

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Expect that overview design may reveal to the public in April next year when the development team is fully established or as early as March with a finalized overview of the 2021 defence budget document.

I want to see some cool ass CG movie PR like western companies do, but it never gonna happen. :(
 

TomcatViP

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Well some kind of embedded CGI with Japanime will do and might refresh the genre bringing a popular international audience (something that other Japanese design lacked even among airfans).
 

stealthflanker

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I am waiting to see what the chosen design is for the new fighter.
I but given their past designs (F-1 looking like a jaguar, F-2 like an F-16, C-2 like a mini C-17, etc).. I wouldn't be surprised if we adopted something very conservative and low risk, especially if they want to get it out soon. which unfortunately means, something that looks like a Lockmart design.

Well cost and risk reduction is part of aircraft design too.
 

TomcatViP

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Speculative but isn't the pause on MHI SpaceJet in nature of facilitating negociations with Boeing? What are the chance this could have a play in the choice of a foreign contractor?
 
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Ares

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Regarding this, Defense Minister Kishi said at a press conference after the Cabinet meeting that "three foreign companies have offered to support the coordination of development."

The three companies offered were Boeing, Lockheed Martin in the United States, and BAE Systems in the United Kingdom.

The Ministry of Defense plans to narrow down the companies that will receive support from these three companies, decide on a development framework by the end of the year, and proceed with the development toward the start of mass production in 2031.

 

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