Poslao: 21 Feb 2009 15:35
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- Toni
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Joj sto sam spavo do 3,sad mi zao sto nisam bio uzivo da ucestvujem u "nabavci" 150 MIG-31
mean_machine ::Ako vec oces ultimativni BVR lovac onda je to Su-35BM u kombinaciji sa ramjet verzijom R-77 (a bice dostupni verovatno 2012godine).
Rekose 2011.
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Registruj se da bi učestvovao u diskusiji. Registrovanim korisnicima se NE prikazuju reklame unutar poruka.
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Poslao: 21 Feb 2009 16:58
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- mean_machine
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TOP GUN ::Joj sto sam spavo do 3,sad mi zao sto nisam bio uzivo da ucestvujem u "nabavci" 150 MIG-31
mean_machine ::Ako vec oces ultimativni BVR lovac onda je to Su-35BM u kombinaciji sa ramjet verzijom R-77 (a bice dostupni verovatno 2012godine).
Rekose 2011.
Pa prvo ce valjda Rusi da kupe. Koliko sam video prvi avioni stizu u Rusko RV 2011 godine. E sada kada ce biti gotova R-77 ramjet to ne znam.
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Poslao: 21 Feb 2009 18:32
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- acatomic
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Zanimljiv tekst o EF radaru:
Typhoon & AESA
Ares
A Defense Technology Blog
AESA And Typhoon
Posted by Bill Sweetman at 2/19/2009 10:24 AM CST
Everyone buying fighters wants an active electronically scanned array (AESA) these days, no doubt after reading Dave "Mr AESA" Fulghum on the subject.
But Eurofighter remains wary about the issue. The consortium's executives still stay that - for today - the mechanically scanned (M-Scan) Selex Captor beats any in-service AESA for the Typhoon's mission, even though Selex itself is ready to go with its Vixen range of AESA radars. A clue as to why they think that way emerged at the Aero-India seminar last week.
Discussing future technologies, Dr, Peter Gutsmiedl, senior vp engineering at EADS Military Air Systems, pointed out ways in which AESA could be integrated into Typhoon - one being the conventional fixed, canted antenna. They included an antenna with auxiliary side arrays, an azimuth gimbal and the so-called "swashplate" radar, a canted antenna on a rotating mount:
What's behind this thinking? A few years ago, Prof. John Roulston - former technical director at BAE Systems' radar division, now part of Selex - presented a paper in which he pointed out a limitation of AESA: at extreme scan angles the effective aperture decreases, and the performance of the radar (range, sensitivity and jamming resistance) declines as a result. So today's M-Scan has a larger field of regard than a fixed AESA, and better performance at the edge of the scan envelope.
This is important for Typhoon because the whole system - in the air-to-air regime - is influenced by air-combat simulations in which a fighter-to-fighter engagement could involve multiple MRAAM shots, followed by a supersonic turn to evade the adversary's fire and extend the F-pole - the distance between the launch aircraft and the target at impact. To do this, it's essential to have a radar that can continue to track the target and guide the missile as the shooter turns away.
The gimbal of a pointable AESA does not have to be anything like as fast as an M-Scan gimbal. The high-speed stuff, tracking a moving target, is still done electronically, with the gimbal moving relatively slowly to optimize the field of view.
Moreover, the electronic field of view is now added to the gimbal scan: the swashplate design shown here adds the 60-degree AESA limit to its 45-degree cant angle, to cover 105 degrees in all directions - a total 210-degree field around the nose.
By the way, the designers of the Su-35 think the same way, and the F-22 has space, weight and cooling provision for side arrays, but so far they have been deferred due to budget cuts.
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Poslao: 21 Feb 2009 19:30
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- x9
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a sta fali eurofajteru?samo da ne zeznemo ko austrijanci da kupimo avione bez naoruzanja
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Poslao: 21 Feb 2009 19:49
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- mladen
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Ko ce prvi kupiti MiG-31,kupice ga onaj ko bude imao da plati.Sto se tice sukoba savremenih PVO sistema i lovackih aviona mnogo je veca verovatnoca da ce preziveti jedan MiG-31 nego Grippen,F-16,MiG-29.Eurofajteru fali to sto je mnogo skup,tj moze se reci da ima los odnos dobijenog i ulozenog.A u toj klasi ima mnogo boljih aparata:F/A-18E,MiG-35.
Dopuna: 21 Feb 2009 19:49
Srbija nazalost ne plovi nigde,ona tapka u mestu.......
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Poslao: 21 Feb 2009 19:53
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- Sousuke
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Opet vi mig31...ehhh, svaki avion ima namenu, definitivno ne bi svrstao 31-ca kao "Visenamenski" avion. To je presretac visokih performansi, kojem ja ne vidim ni svrku ni ulogu kod nas.
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Poslao: 21 Feb 2009 20:05
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- mladen
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Da svakako svaki avion ima svoju namenu.Precizno MiG-31 nije presretac,to je lovac-presretac visokih perfomansi.Najblizi njemu je F-14 Tomcat koga je nadmasio u svim parametrima.Pravi presretaci su MiG-25,Tu-128,Tu-161...I jedno pitanje cemu avioni,uopste vojska treba da sluzi da stiti drzavu od agresije,ili da unapred izgubi tu bitku?
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Poslao: 21 Feb 2009 20:46
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mladen
Citat:Ko ce prvi kupiti MiG-31,kupice ga onaj ko bude imao da plati
Неће га купити нико, јер никоме не пада н памет да купује крш стар 25+ година, који троши као Џамбо Џет, треба му земља површине бар 700.000км квадратних, комплетна земаљска инфраструктура грађена само за њега, читава армија механичара и инжењера за одржавање и најмање 50 милиона безобразно богатих пореских обвезника који ће све то да плате. На то треба додати и цену бар још једног типа авиона за друге задатке.
Уосталом тема се зове"Избор вишенаменског авиона за Српско Ви ПВО", а Миг-31 није вишенаменски авион, већ искључиво ловац-пресретач.
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Poslao: 21 Feb 2009 21:03
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- mladen
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Ne bi se slozio.Varijanta MIG-31F je visenamenski avion.A to da je nama takav avion nepotreban to nema veze sa zivotom.Pogledajte kakva je geopoliticka situacija oko nas.U vecim smo problemima nego Izrael.Ako je F-15 koji je inace najbolji avion zapada bar po postignutim rezultatima,sta bi Srbiji falilo da poseduje aparate kao sto su MiG-31.Naravno na pocetku svog izlaganja sam rekao ako se popravi ekonomsko stanje u zemlji.A kupovina 12 aviona je u ovom stanju cista ludost.U slucaju nekog sukoba bili bi lepe pokretne mete,to je svima jasno.Prvo standard,zakon,rad.red i disciplina a avioni ce doci sami.Poenta svega je to da bolje je spreciti nego leciti.
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