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Poslao: 16 Mar 2016 19:58
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- Leonardo
- Moderator u penziji
- Pridružio: 17 Maj 2007
- Poruke: 13919
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... i odprintati 3D printerom ...
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Registruj se da bi učestvovao u diskusiji. Registrovanim korisnicima se NE prikazuju reklame unutar poruka.
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Poslao: 01 Jul 2016 15:40
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- Toni
- SuperModerator
- Pridružio: 18 Jun 2008
- Poruke: 31044
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Napisano: 01 Jul 2016 13:34
GE i PW dobili ugovor za motor sa promenljivim ciklusom
Citat:The awards of the Adaptive Engine Transition Programme (AETP) contracts to GE and P&W on 30 June extends a nearly 10-year effort to introduce a fuel-saving cruise mode into an engine intended for a supersonic fighter. Both contractors will develop and test multiple new centreline engines sized at a 45,000lb-thrust level.
“We believe GE is best positioned to integrate the adaptive suite of technologies into existing and next-generation combat aircraft,” says Dan McCormick, general manager of GE Aviation's Advanced Combat Engine programmes.
P&W was not immediately available for comment.
The USAF is developing concepts for replacing the Lockheed F-22 after 2030, which includes updating existing designs with new technology. Re-engining the F-35 with an adaptive cycle, 45,000lb-thrust engine is also under study.
An adaptive-cycle engine is intended to address a design limitation in modern powerplants. An engine optimised for subsonic speed is more fuel-efficient, but cannot easily exceed the speed of sound. A supersonic engine, however, can accelerate over Mach 1.0 but is limited in range because it guzzles fuel.
The AETP programme continues development of a technology that could make supersonic engines 25% more fuel-efficient, thus extending the range of a fighter by as much as 30%, according to GE.
https://www.flightglobal.com/news/articles/adaptiv.....pm-426886/
Dopuna: 01 Jul 2016 16:40
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Poslao: 29 Avg 2016 16:51
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- Toni
- SuperModerator
- Pridružio: 18 Jun 2008
- Poruke: 31044
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Rade na definisanju zahteva, poduzi clanak...
Citat:
WASHINGTON — After undergoing a yearlong effort that explored the tactics and technologies needed to control the skies in the future, the Air Force is taking its first steps toward making its next fighter jet a reality.
The service has already begun preliminary work ahead of a 2017 analysis of alternatives that will shape the requirements and acquisition strategy for the F-35 follow on, which the Air Force been termed Next Generation Air Dominance (NGAD) or Penetrating Counter Air (PCA).
But Brig. Gen. Alexus Grynkewich, who led the Air Superiority 2030 enterprise capability collaboration team (ECCT), emphasized that there are two major differences between the NGAD effort and its that of legacy fighter jets. The first is the relatively rapid method of acquiring it.
“We need to have something by the late 2020s,” he said in an interview with Defense News. “I think a realistic timeline is somewhere around 2028 with key investments in some key technology areas, you’d be able to have some initial operational capability of a penetrating counter air capability.”
The second difference relates to the recently concluded Air Superiority 2030 study, which made the case that the Air Force’s future dominance will rest not on a single platform, such as a sixth generation fighter jet, but on an integrated, networked family of systems. That combination of penetrating and stand-off capabilities includes a fighter plane, but also a number of space, cyber and electronic warfare assets.
What that means is that the fighter jet of the future might look more like a sensor node than the dogfighters of the past, Grynkewich said. The service currently is conducting pre-AOA work at Wright Patterson Air Force Base, Ohio, to explore emerging technologies and hammer out potential NGAD requirements.
“They’re looking at all of the tradespace of the various attributes,” including lethality, survivability, range and payload, he said.
Citat:The Air Force is trying to flush the words “sixth generation fighter” from its lexicon, Grynkewich said. Even the service’s initial terminology for an F-35 follow on — Next Generation Air Dominance — is being eschewed in favor of the label “Penetrating Counter Air.”
“You start to have an argument over what does 'sixth gen' mean. Does it have laser beams, is it hypersonic? What is it? What does it look like? That’s not a useful conversation,” he explained. “The more useful conversation is, what are the key attributes we need in order to gain and maintain air superiority in 2030?”
The Air Force is looking at incorporating sophisticated, cutting edge technologies like directed energy in the initial version of Penetrating Counter Air (PCA) or a future block upgrade. But ultimately, the service does not want to hold up the program so that a particular sensor or weapon can mature.
The outcome may not turn out to resemble a traditional fighter jet, Grynkewich said.
“I’ve gotten into a little hot water with my fighter pilot brethren over this, because I say things like, ‘Hey, it may not necessarily be a fighter,’” he said, adding that the aircraft will likely still receive the “F” designation reserved for fighter jets. “A typical fighter pilot for air superiority would say you need 9Gs, two tails, a gun, short range. That’s what fighters are. This is something that’s a little bit different and has some different attributes in my mind.”
Itd http://www.defensenews.com/articles/air-force-futu.....-dominance
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Poslao: 09 Jan 2017 21:54
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- boksi
- Legendarni građanin
- Pridružio: 11 Jun 2008
- Poruke: 7834
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Američki lovac šeste generacije biće opremljen futurističkim tehnologijama koje će pomeriti granice ratnog vazduhoplovstva
Za 20 godina borbeni avioni će biti opremljeni sledećom generacijom stelt tehnologije, ofanzivnim elektronskim sistemima, sofisticiranim kompjuterima, pojačanom autonomijom, hipersoničnim oružjem i takozvanim "pametnim skinovima" koji podrazumevaju senzore ugrađene u spoljašnjost letelice.
Neke od ovih tehnologija viđene su kada je Nortrom Gtuman SuperBoul AD predstavio prvi 3D dizajn novog borbenog aviona šeste generacije.
Nova letelica trebalo bi da nasledi F-35 Džojnt Strajk Fajter i da se nađe u upotrebi do sredine 2030-ih. Za sada, avion je još uvek u konceptualnoj fazi razvoja, a očekuje se da će letelice popuniti prazninu kada se F/A-18 Super Hornet povuče iz upotrebe 2035. godine.
Pretpostavlja se i da će američki borbeni avion šeste generacija biti napružan laserima.
http://www.kurir.rs/planeta/brzi-jaci-pametniji-pe.....vezano.com
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Poslao: 19 Sep 2017 17:06
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- Pridružio: 01 Okt 2012
- Poruke: 4067
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dok ne rastave petu generaciju tamo neka "..plemena " kubovima i nevama , da vidimo od cega je sastavljen, nece biti seste 
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Poslao: 19 Sep 2017 22:06
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- mean_machine
- Legendarni građanin
- Pridružio: 23 Dec 2006
- Poruke: 12575
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Razrada MekDonald Daglasovog JSF predloga sto i nije daleko od realnosti jer se od novog lovca ocekuje da koristi slican motor ko JSF.
I da sumljam da sa takvim usisnicima bi bio realan ali da izgledaju dobro to da sto je umetniku bilo i najbitnije 
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