Haastaja Japanista: Mitsubishi F-3 ATD-X Shinshin häivekone

Juke

Ylipäällikkö
BAN
Muutamaan otteeseen olen pohtinut syytä F22:sen lerpattaviin lokinsiipiin. Joka varmasti omalta osaltaan lisää koneen suorituskykä kaartelussa. Outoa etteivät muut ole käyttäneet samaa idea uusien koneiden suunnittelussa.

Tottakai...alaskääntyvät siivet estävät ilmaa karkaamasta siipien alta ja taivutus ( geometrinen + aerodynaaminen kierto ) estää kärkisakkauksen.
 

J0h1F

Kenraali
Kuten jokaisella itseään kunnioittavalla isolla maalla, myös Japanilla on oma häivehävittäjäprojekti.
Ensimmäinen osa projektia kulki ATD-X "Shinshin" -nimellä, jonka tarkoituksena oli valmistaa tutkimusprototyyppejä tulevaa F-3 -hävittäjää varten. Japani käynnisti projektin, koska USA ei suostunut myymään F-22:ta Japanille.
http://www.ecnmag.com/blog/2011/03/japan-announces-domestic-stealth-fighter

shinshin_atdx-700x405.jpg

ATD-X:n teknologiaa testattiin 2007 jonkinasteisella esiprototyypillä.

Kone julkistettiin virallisesti vuonna 2014, tosin siitä esiteltiin vielä lentokelvoton prototyyppi, jota vain vedettiin ympäri kenttää.
ATD-X-Prokimal-Online-Kotabumi-Lampung-Utara.jpg


IMG_299428E4BFAEE6ADA3E7898829-71e01.jpg



Varsinaisen testilennon pitäisi tapahtua vielä tänä vuonna, japanilaisviranomaisten mukaan.
http://www.ecnmag.com/blog/2015/04/japans-first-indigenous-stealth-fighter-could-take-flight-summer

Projekti on myöhästynyt jonkin verran, alun perin ensilennon piti tapahtua jo 2014, sitten 2015 alkuvuodesta, mutta jälkimmäistäkin ajankohtaa jouduttiin lykkäämään ohjelmisto-ongelmien vuoksi:
http://www.janes.com/article/47768/japan-s-atd-x-first-flight-delayed-by-software-glitch

Elokuun lopussa 2015 uutisoitiin, että kone olisi "lähestulkoon valmis" ensilentoa varten.
Koneesta on sen jälkeen onnistuttu ottamaan kuvia, joissa ohjaamokin on jo olemassa:
63858c20497ce101111f9d7775c4f3ec.jpg


YlO3RUh.jpg


ATD-X on selvästi muita häivehävittäjiä pienempi (taiteilijan näkemys, mitat perustuvat kuitenkin oikeisiin):
capture-d_c3a9cran-2014-04-19-c3a0-08-53-52.jpg



F-3:n on siis tarkoitus olla F-22:n tapaan ketterä (toisin kuin esimerkiksi F-35:n), ja varsinaisen F-3:n kehitysprojektin on tarkoitus alkaa 2016-2017, ATD-X:n pitäisi olla lopullisesti valmis 2018, ja sitä olisi tarkoitus käyttää kehitystyön pohjana.
Varsinaisen valmiin koneen massatuotannon ja lopullisen käyttöönoton kohdalla ollaan varovaisempia, sen pitäisi ajoittua viranomaisten mukaan vuoteen 2027.
 

Tetra

Respected Leader
BAN
Onko tässä jotain kiinnostavia erilaisia ratkaisuja muihin häivekoneisiin verrattuna?
 

Rannari

Greatest Leader
Onko tässä jotain kiinnostavia erilaisia ratkaisuja muihin häivekoneisiin verrattuna?

Jos vanhat merkit paikkansa pitävät niin aivan helvetin kallis. Kallis kehitystyö yhdistettynä erittäin pieniin valmistusmääriin on tappava yhdistelmä. Sama taitaa kyllä päteä Japanin jokseenkin kaikkiin teknisempiin asejärjestelmiin ja heillähän on käytössä pääosin kotimaisia välineitä.

Lainasinpa näköjään väärää viestiä. Pahoittelut siitä. @TBman oli oikea kohde
 

Tetra

Respected Leader
BAN
Lainasinpa näköjään väärää viestiä. Pahoittelut siitä. @TBman oli oikea kohde
Niin, kieltämättä helvetin kallis ei ole kovinkaan erilainen ratkaisu nykyään...

Etelä-koreallakin taisi olla projektina oman häivehävittäjä.
 

PstJermu

Korpraali
Eikös Turkillakin ole joku häive projekti?
F-2 projektikin tuli todella kalliiksi ja niistä vielä osa tuhoutui tsunamissa.

Vieläkö Japanissa on laki voimassa että aseita ei saa viedä ulkomaille?
 

Mustaruuti

Ylipäällikkö
BAN
RÖLLIKKÄ

Mustaruuti

Ylipäällikkö
BAN
RÖLLIKKÄ

fulcrum

Respected Leader
Tämä vekotin on vasta demonstraattori ja todennäköisesti varsinainen taistelukone tulee olemaan jos ei erinäköinen niin ainakin isompi.
Meidän H-X -ohjelmaamme tämä valitettavasti tulee viitisen vuotta liian myöhään, mutta voi toki olla hintansakin puolesta meille liian tyyris. Japanin itsepuolustusvoimat on siitä harvinainen sotalaitos että sillä ei ole juuri koskaan rahapulaa ja koska se on sikäläisen aseteollisuuden ainoa asiakas niin japanilaisilla ei ole varsinaista insentiiviä tehdä sotatarvikkeistaan edullisia. Tosin jos nykyään rupeavat haaveilemaan aseviennistäkin niin tämä kulttuuri ehkä tulee vähän muuttumaan.
 

Huhta

Greatest Leader
Laitetaan vähän tekstiäkin videokilppien ympärille.

* News Catch, Editors' Choice, Fighters
Japan’s X-2 Shinshin flies
2016/04/22 AIRheads/EH Leave a comment

The aircraft formerly known as ATD-X, the X-2 Shinshin, first flew in Japan on Friday 22 April. The aircraft, a stealth technology demonstrator built by Mitsubishi Heavy Industries (MHI), took off from Nagoya Airport and went through a series of trials to confirm basic maneuvers including climbing, descent and circling operations. It then landed at nearby Gifu Air Base.

After completing the maiden flight, MHI described the flight experience as “extremely stable’. Control of the aircraft went exactly as in simulated training sessions, the compnay said. MHI also states its positive the X-2 will meet Japan’s Ministry of Defense’s requirements.”

The X-2 is a prototype stealth aircraft engineered for extremely high maneuverability. The prototype integrates an airframe, engines, and other advanced systems and equipment all adaptable to future fighters. The X-2 has been in development since 2009

The future for the aircraft and its technology is by no means clear, however. The Japan Air Self-Defense Force (JASDF) will receive the stealthy Lockheed Martin F-35 Lightning II in the not-so-far future, replacing ageing F-4 Phantoms. Also, the last military jet developed in Japan by Mitsubishi, the F-2, never proved very successful.

© 2016 Airheadsfly.com editor Elmer van Hest
Featured image: The X-2 during its test flight. (Image © JASDF)

http://airheadsfly.com/2016/04/22/japans-x-2-shinshin-flies/
 

Mikoyan

Ylipäällikkö
Kuten fulcrum edellä mainitsikin, nyt lentänyt prototyyppi X2 ei ole vielä koneen lopullinen versio. Tässä versiossa vasta testataan häivekoneen ominaisuuksia.

Varsinaisen, suuremman F3:sen kehittely alkanee 2016-2017 ja sen prototyyppi lentäisi arviolta 2024-25. Aiottu tuotantovalmius saavutetaan joskus 2027. F3-Koneita on tarkoitus hankkia noin 200 kappaletta.

F3 tuulitunneliversio:
F-3_ATD-X.jpg


shinshin_atdx.jpg



http://m.aviationweek.com/awin/japan-aims-launch-f-3-development-2016-17
 
Viimeksi muokattu:

J0h1F

Kenraali
Japani ja Iso-Britannia tekivät sopimuksen häivehävittäjän kehittämisestä yhdessä. Lisäksi mailla on yhteinen kehitysprojekti uuden BVR-ohjuksen kehittämiseksi.
On jossain määrin epäselvää, onko kyse nyt yhteistyöstä X-2:n pohjalta kehitettävän koneen kohdalla vaiko täysin erillisestä projektista.
http://thediplomat.com/2017/03/japan-and-uk-to-collaborate-on-advanced-stealth-fighter-jet/
Japan and UK to Collaborate on Advanced Stealth Fighter Jet
Japan and the United Kingdom have agreed to explore options to jointly develop a new fighter aircraft.

thediplomat_2015-01-06_12-04-00-36x36.jpg

By Franz-Stefan Gady
March 28, 2017
Japan’s Acquisition, Technology, and Logistics Agency and the United Kingdom’s Ministry of Defense have concluded an agreement to explore options for co-developing an advanced fighter jet, according to a March 16 press release by the Japanese Ministry of Defense.

The agreement stipulates that both countries will exchange information about advanced aviation technology and also conduct a joint study on the feasibility of co-developing a new fighter aircraft in the coming years.

The press release further notes that Japan will continue to explore fighter jet co-development options with other countries. “Regarding the possibility of international joint development on fighter aircraft in the future, we will continue to exchange views with other countries,” the MoD statement reads.

While the next-generation fighter jet project would be the biggest Japan-UK collaboration on sensitive defense technology so far, both countries are also a working on jointly developing a new ramjet-powered, beyond a visual range air-to-air missile.

During a January 2016 visit, the UK defense minister and his Japanese counterpart agreed to move discussions on the project to the next stage. The aim of the project is to integrate Japanese seeker technologies into the European Meteor Beyond Visual Range Air-to-Air Missile.

In October 2016, the UK Royal Air Force (RAF) and the Japan Air Self-Defense Force (JASDF) also held their first-ever joint aerial combat drill, dubbed Guardian North 16, in Japan. The exercise involved four RAF Eurofighter Typhoon fighter jets, JASDF Boeing F-15J all-weather air superiority fighters and Mitsubishi F-2s.

The Eurofighter consortium, which includes the United Kingdom, unsuccessfully tried to pitch the Eurofighter Typhoon aircraft to Japan in 2011. The JASDF, however, opted for the U.S.-made F-35A Lightning II stealth fighter jet instead. Japan placed an order for 42 F-35 through the U.S. Foreign Military Sales Program in 2011. The first aircraft was handed over to the JASDF in December 2016.

Nevertheless, the F-35 order is an interim solution and Japan is slated to procure up to 100 new fifth-generation air superiority fighters by the 2030s. An estimated $40 billion contract is expected to be awarded in the summer of 2018 (See: “Japan’s Air Force to Receive 100 New Stealth Fighter Jets”).

As I explained in July 2016, Japan has three options for procuring for the new aircraft: “First, develop an indigenous air superiority fighter. Second, partner with a foreign defense contractor and license-produce a new aircraft. Third, import or upgrade an existing platform.” The UK-Japan joint study falls into the second option of partnering with a foreign aircraft maker.

However, U.S. aircraft makers will remain Japan’s top choice for any future fighter jet co-development projects. Last year, Japan unveiled an experimental fifth-generation fighter technology demonstrator, dubbed X-2 “Shinshin” (formerly the ATD-X), which will be the basis for the JASDF’s so-called (F-3) Future Fighter Program. As I reported last year, U.S. defense contractor Lockheed-Martin is purportedly already involved with the project in some capacity.

Sekä Lockheed Martin että Boeing ehdottivat Japanille yhteistyötä X-2:n jatkokehittämisessä.
http://www.nextbigfuture.com/2016/10/lockheed-proposes-stealth-fighter.html
Lockheed proposes stealth fighter project with Mitsubishi Heavy
brian wang | October 18, 2016 |
japan5gstealth-1-730x430.jpg


Lockheed Martin has proposed developing a new Japanese stealth fighter with Mitsubishi Heavy Industries, the U.S. defense giant’s president told The Nikkei.

Lockheed Martin’s proposal was made in response to a call from Japan’s Ministry of Defense, which is weighing options to boost Japan’s defensive capabilities in the face of rising regional tensions.

Japan is looking to replace its aging fleet of around 90 F-2 fighters and is mulling three possibilities. The first would be for Japan to develop a new jet domestically. The second would be co-development with foreign defense contractors, such as Lockheed Martin. The third would be to buy more existing aircraft — say, Lockheed Martin’s F-35 stealth jet.

The Japanese ministry’s deliberations are ongoing, with a second round of information requests to be made by the end of next March. “We will definitely respond [to this request], we will be a part of that process,” Hewson said. A final decision is expected in fiscal 2018.

Lockheed Martin rival Boeing has also proposed working with MHI on a replacement for the F-2. Alternatively, the Japanese contractor could opt to go it alone with its experimental stealth fighter, which made its maiden flight in April.

Japan has already purchased 42 F-35s from Lockheed Martin to replace its F-4 fleet. The F-35 was originally developed by the U.S. and eight other countries, including the U.K. and Italy, in what has been described as the world’s largest weapons program.


Mitsubishi X-2 domestic Japanese stealth fighter


F-35 stealth fighter
Suomen HX-hankkeen kannalta Japanin projekti vain tulee 5-10 vuotta liian myöhään. Jos alkuperäiset aikataulut pitävät paikkansa, valmis kone tulisi vasta 2027 käyttöön, tosin joissain lähteissä on väitetty, että Japani olisi laittanut paljon lisää rahaa ja resursseja peliin X-2:n jatkokehittämiseksi nyt viimeisen vuoden aikana, jotta valmista tulisi aiemmin.
 

Tetra

Respected Leader
BAN
Onko tästä härvelistä mitään uutta?

Tämmönen uutinen tuli bongattua muutama viikko sitten, mutta eihän noita maakohtaisia uutisaiheita kukaan lue.

 

gekados

Kapteeni

Latest Japanese Fighter Concept Suggests Greater Range

japan_next_generation_fighter-japan_defense_ministry.jpg


BEIJING—The Japanese defense ministry has published a new design for the country’s next fighter, suggesting an even greater emphasis on range and payload than before.

The picture, not confirmed as a preferred design, appeared as the ministry detailed total funding of ¥28 billion ($255,780,000) for the fighter and related technologies in the fiscal year beginning April 1, 2020.

A change in the program name from Future Fighter to Next Generation Fighter (NGF), mentioned by Defense Minister Kono Taro on Dec. 17, is confirmed in the defense ministry’s Japanese-language report on its budget for fiscal 2020.

The twin-engine type is intended to enter service in the 2030s. Japan is considering proposals for cooperation with British and U.S. partners.

An illustration of the design differs markedly in planform from the most recent that has previously been shown, which was called 26DMU and prepared in fiscal 2014. The new design is somewhat reminiscent of concepts for the proposed Future Combat Air System and Tempest fighter programs, the former led by France and Germany and the latter by Britain. The Tempest is a possible basis for NGF.

Whereas 26DMU had four tail surfaces, somewhat slanted, the NGF drawing in the budget report shows only two; they are mounted at perhaps 45 deg. to the vertical.

The mainplane also is dramatically different, with seemingly higher aspect ratio (slimness). The leading edge is straight, as before, but the trailing edge is swept forward inboard but aft outboard—as on the wings of the Tempest and FCAS concepts and, before them, the unsuccessful McDonnell Douglas submission for the Joint Strike Fighter program in the 1990s and the McDonnell F-101 Voodoo of the 1950s.

The trailing edge of the newly revealed Japanese design meets the fuselage at about the same point as the leading edges of the tail surfaces, as in FCAS concepts published by Dassault. In the Tempest concept that Britain has revealed, the mainplane, with much lower aspect ratio than the Japanese design, is extended as far back as the trailing edges of the tail surfaces.

The Japanese defense ministry has previously attributed high endurance and weapon load to a planform with such a kinked trailing edge, though the designs it showed then had four tail surfaces longer outboard sections and perhaps higher aspect ratio. A high aspect ratio improves range and endurance at subsonic speeds, but fighter drag is also heavily influenced by fuselage shape. A higher aspect ratio may also permit greater weights on takeoff and landing, and therefore larger loads of fuel and weapons.

The 26DMU’s wing had a straight trailing edge, swept forward, and apparently less aspect ratio than in the preceding design, 25DMU of fiscal 2013. In 25DMU the trailing edge was straight and swept backward.

By the time they drew up 25DMU, the defense ministry’s developers had already decided that Japan would be better served by a large fighter with less-than-extreme flight performance but with long endurance and a large internal load of long-range air-to-air missiles. Such fighters could spend more time on station than those of higher performance. The new design, if it represents what the ministry now wants, takes that idea further.

These concepts have been extraordinarily large, bigger than the Lockheed Martin F-22 Raptor—perhaps suggesting that Godzilla would be a better project name than Next Generation Fighter.

IHI Corp. and the ministry have developed an engine of at least 33,000 lb. thrust, the XF9-1, for the fighter.

The funding of ¥28 billion in the fiscal 2020 budget is not fully explained. As Taro said on Dec. 17, ¥11.1 billion is allocated for fighter research and development; the minister called this “concept design” work. That level of funding will obviously pay for a more intensive effort than what produced 26DMU and earlier designs, but the minister’s terminology seems to rule out the launch of full-scale development in fiscal 2020—which in any case should not begin before a foreign partner is chosen.

The budget also includes ¥7.6 billion for fighter mission system integration, reduced from the ¥17.7 billion the ministry asked for, and just ¥100 million for work on a drone that would accompany the NGF, down from ¥1.9 billion requested.

These figures leave ¥9.2 billion of unidentified NGF work funded in fiscal 2020.

In its budget request, the ministry asked for a program office to be set up.

The government said in late 2018 that Japan would lead development of the fighter, implying that an international partnership would be sought. The type is intended to replace the Mitsubishi Heavy Industries (MHI) F-2.

Candidate partners are BAE Systems, Lockheed Martin, Northrop Grumman and, probably, Boeing. The BAE offer is based on participation in the Tempest program, in which Japan could pick and choose design elements, perhaps using its own airframe, engine, avionics or weapons or some combination of them.
 

Tetra

Respected Leader
BAN
Vaikka Yhdysvallat onkin Japanin pääkumppani tässä hankkeessa, ei yhteistyötä brittien kanssa ole täysin haudattu.


Alongside the U.S. negotiations, Japan also will pursue a technical partnership with the U.K., which is planning its own next-generation fighter jet. Though Tokyo opted against London as its main partner for the project, the two plan to share technology.
 
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