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  • in reply to: The EuroFighter Typhoon #2496674
    greg
    Participant

    A:

    a. Not necessarily, EF-2000 is a much smaller fighter than F-22A, which should make it more difficult to be viewed by eyes in the WVR dogfight. However, in the cloudy weather, this advantage for EF-2000 may also be diminished.

    Too thin. The EF is not that much smaller than the raptor in overall dimensions.

    b. and c.
    Such advertisements that have also been declared by Russian, Frenchman, and even the American of Boeing who wish to sell more F/A-18E before.

    It is an official claim, not a rumor, after all. On the other hand it might be a marketing BS.
    Choose your pick.
    BTW I didnt know the F/A-18 was offered with IRST device.

    in reply to: The EuroFighter Typhoon #2496698
    greg
    Participant

    A:

    1. Typhoon has not equipped HMD yet, and it hadn’t equipped PIRATE formally until the Tranche I, Block5 fighter entered service in 2007. It is very possibile that Typhoon still hasn’t use PIRATE to try to against Raptor up to now.

    .

    Two points

    a. If according to RAF chief, clouds influenced the outcome in favor of the raptor, this clearly indicates that an IR device for BVR sensing was used by the other part. Or else clouds would have blocked both opponents. Right?

    b. In the recent Defendory exhibition that was held in Athens, last month, a Eurofighter Consortioum spokesman, stated that even if CEASAR will not be incorporated, the PIRATE is able to search and track stealth targets. Up to 70nm away.

    http://www.defencenet.gr/defence/index.php?option=com_content&task=view&id=5528&Itemid=49

    Σε ερώτηση του http://www.defencenet.gr, όσον αφορά το κατά πόσο θα μπορούσε το EF-2000 Typhoon να αντιμετωπίσει το τεχνολογίας stealth μελλοντικό του δυνητικό αντίπαλο, το F-35, η απάντηση που λάβαμε ήταν πως χάρη στην ύπαρξη του παθητικού συστήματος έρευνας και ιχηλάτησης υπερύθρων IRST που διαθέτει το μαχητικό, το PIRATE, ουσιαστικά το πλεονέκτημα του χαμηλού ηλεκτρομαγνητικού ίχνους των αεροσκαφών stealth ουσιαστικά παύει να υφίσταται.

    In a question of http://www.defencenet.gr, referring to the ability of the EF-2000 Typhoon to counter the stealth technology and future potential opponent F-35, the answer we got was that thanks to the passive search and track IR system PIRATE, the advantage of the low electromagnetic return, cease to exist!

    Its all greek to me….

    PS of course the EADS spokemans quote, can always be marketing BS.

    in reply to: The EuroFighter Typhoon #2496756
    greg
    Participant

    Actually these claims are virtually worthess For all we know the radar didn’t detect the F-22 until it was five miles away. Hardly valuable as it’s visible to EVERY radar if is close enough. The “claim” tells us nothing new. It didn’t say the F-22 lost, it said it won- in close combat- against a Typhoon that has HMCS, AIM-132, and Pirate, while the F-22 doesn’t even have AIM-9X or a HMCS. So what do these claims REALLY tell us? That in the best situation a Typhoon could hope for (IE the F-22’s stealth not being a factor because it was WVR) it still lost.

    The claim speaks for BVR and WVR DACT.
    Anyway I think it was build up too much.
    All I ever hoped was, if anybody else had heard something close to this.

    in reply to: Hutton serious about JSF pull-out? #2496788
    greg
    Participant

    http://www.gizmodo.com.au/2008/11/guy_builds_f35_fighter_jet_on_his_own-2.html

    At least in Australia the F-35 enjoys a rather good reputation.
    In fact they already “operate” one!

    in reply to: The EuroFighter Typhoon #2496799
    greg
    Participant

    I’d want a lot more evidence before I accepted these reports uncritically.

    Being the one who brought these report here, I must declare that I couldnt agree with the above statement more!

    I consider it just a bit of information, that might eventually form a good picture, if more bits are gathered .

    The Raptor is a hell of a good fighter, after all.

    in reply to: The EuroFighter Typhoon #2497134
    greg
    Participant

    http://www.4tforum.gr/phpBB3/viewtopic.php?f=13&t=9939&start=2430&st=0&sk=t&sd=a#p1333260

    Κατ’ αρχή σε κλειστές αερομαχίες τα τάιφουν ΠΑΝΤΑ υπερίσχυσαν των φ-15/16 (μάλιστα μια φορά 1 τάιφουν νίκησε ζεύγος από φ-15/16, ποτέ δεν θυμάται είπε περίπτωση και σε άλλες ασκήσεις φ-15/16 να έχει καταρρίψει τάιφουν) ενώ από τα ράπτορ έχασαν με μικρή διαφορά (narrow win), κυρίως όταν είχε σύννεφα δεν μπορούσαν να τα εντοπίσουν εγκαίρως λόγω στελθ, ικανότητα που όμως χάνεται εάν το α/φος φέρει εξωτερικο οπλισμό ή έστω και ένα ατρακτίδιο ή δεξαμενή, συνεπώς το ραπτορ πλεονεκτεί καθαρά μόνο εάν φέρει αποκλειστικά τον περιορισμένο εσωτερικό του οπλισμό και σε μάχες πέρα από τον ορίζοντα διότι ανιχνεύεται δύσκολα από τα ραντάρ α/φων και (ενεργών) πυραύλων (πέραν του ότι είναι πανάκριβο για αγορά, δύσκολο, απαιτητικό και ακριβό και στη συντήρηση, μόνο 120 θα πάρει τελικά η usaf ενώ προγραμμάτιζαν… 500 και επί του παρόντος δεν υπάρχουν σκέψεις για εξαγωγή ούτε καν στο ισραήλ, επίσης το θέλει και η ιαπωνία). Το ράπτορ συνολικά κρίνεται καλύτερο από το τάιφουν αλλά υστερεί σε συντελεστή κόστους/αποτελεσματικότητας.

    http://babelfish.yahoo.com/translate_txt

    According to the translations from the website mentioned above. The Greece post said that F-22A had only gotten a “Narrow Win” over Typhoon in “Closed air combat”, not in the condition of BVR combat.

    And personally, I don’t think this kind of result is suprising, especially when you consider the difference of WVR weapons that F-22A (AIM-9M) and EF-2K (AIM-132) use nowadays……

    Toan I contacted this man, and he was most willing to answer.
    He told me that the DACTs lasted a week, and were both BVR and WVR.
    And some time they went for guns.
    He also told me that the raptor was visible to the radar from certain angles , not only azimuth but azimuth and elevation angles.
    He concluded that with the introduction of CEASAR and METEOR, the situation for the Typhoon against L/O targets will improve even more.

    in reply to: The EuroFighter Typhoon #2497203
    greg
    Participant

    Of course it goes to the credibility of each source.

    Or it should be…..

    Most times people tent to believe exactly what they wish to believe.:dev2:

    in reply to: The EuroFighter Typhoon #2497225
    greg
    Participant

    A: What DACT exercises in which year??

    A:

    The IRST today is still more a complement for radar (helping radar to cue and identify the target that radar has found and picked out) than a completely independent sensor to search, track, identify, range, and lock the target by itself in the long range. A modern IRST like Pirate can detect 200 targets at the same time. However, in this kind of situation, the pilot can only see 200 light spots on its screen that is impossible to tell which target(s) /light spot(s) is / are the real bad guy(s), not to mention gathering the necessary information to shoot it / them down.

    If the pilot wants to use IRST to do the jobs of tracking, identifying, and ranging, then it can only handle a single target at one time within a very limited effective range (around 30 ~ 55 km), which is still not good enough when considering that the combination of Raptor + AIM-120C6/C7/D has the BVR capability to attack more than six targets at the range of 80 to 100 km+ away……

    And even if the pilot of EF-2000 identifies and locks F-22A successfully with the help of Pirate IRST, then what kind(s) of weapon(s) shall Typhoon be able to use to shoot Raptors down?? The active seekers of BVRAAMs like AIM-120 or Meteor are much less powerful than modern fighters’ radars today, which are highly unlikely to be able to lock Raptor successfully. Modern WVRAAMs with IIR seekers like ASRAAM or IRIS-T may have more chance, but their effective range is much less than AIM-120C6/C7/D, especially when the later is fired from the F-22A with high speed (1.5-1.8 M) supercruising…..

    I do not have all the answers. A lot of these details are clasified and cannot be disclosed, so we can only assume.

    I think it is safe to say that PIRATE can work as a standalone sensor.
    Of course it works better in a combination with the radar, but when the pilot shuts it down, it can provide azimuth and elevation information about IR targets, and possibly TRACK this targets, under certain circumstances.
    The basic problem is ranging, of course. Personally I do not believe that any IRST sensor can provide accurate range measurements mainly because both sensor and target are moving.

    But, there might be an other solution! Aircraft fly in pairs. If angular information by BOTH PIRATEs can be combined through datalink and sensor/fusion, range information CAN be obtained. Provided that sensor fusion software is able to match contacts of one PIRATE with contacts of the other.

    Ov course there is the range issue. I really dont know.
    Still assuming, if the raptors need to fire their AMRAAMS in max range, they need to fly supercruising. And although the raptors may not using their A/B, their skin temperature is quite high!

    Anyway I contacted this guy and I have to say he sounded VERY credible.
    Nevertheless it is one source, and still needs to be cross-confirmed.

    in reply to: Rafale news III: the return of the revenge #2497818
    greg
    Participant

    Is it a picture or is it a painting?

    Neither.
    Photoshop rocks

    in reply to: Rafale news III: the return of the revenge #2497882
    greg
    Participant

    I think, this multi-ID joke must end.

    I watch this forum since 1999, cant remember anything like this before.

    in reply to: The EuroFighter Typhoon #2497993
    greg
    Participant

    There was a report in a greek forum, that during DACT exercises between RAF and USAF, the Eurofighters won every battle with F-15/F-16s and against the F-22s, the raptors only got a “Narrow Win.
    The statement was done by the air chief of RAF, last year, at the Oxford Union Debating Society.

    http://www.4tforum.gr/phpBB3/viewtopic.php?f=13&t=9939&start=2430&st=0&sk=t&sd=a#p1333260

    According to the same officer the score of the eurofighters could even become better against the raptors, if the weather was better (less clouds) as the formers were using the PIRATE/IRST to spot the F-22s, and many times that was not possible.

    Can anybody confirm or decline that?

    in reply to: What ever happened? #2498021
    greg
    Participant

    You know how a rumor spreads.
    Usually there is an idea thrown on the table, and than all little parrots propagate it, as if granted.

    I wouldnt hold my breath.

    in reply to: What ever happened? #2498140
    greg
    Participant

    There have been rumors (not very credible) that the Qatarian M2000s will end up at the Hellenic air force as an offset of a deal to sell Olympic Airways to Qatar.

    Just rumors.

    in reply to: The EuroFighter Typhoon #2498388
    greg
    Participant

    Excactly. Thrust is a force versus drag. Both do drop in a similar way, but not the same way with height. That is related to military or dry thrust at subsonic. AB or wet thrust is not effected in a similar way. The oxygen content does drop with the height too, but when the mass flow is high it does drop much slower. 😉

    I will give you a rough example of the GE J-79 from memory.
    It is ~50 kN and a sfc of 0.84 static at ground level. 5100*0.84= 4284 kg/h or 71,4 kg/min.
    At ~40.000 feet and Mach 0,9 it is ~12 kN and a sfc 0.9+. 1224*0.9= 1102 kg/h or 18,4 kg/min.

    thanx

    in reply to: Hutton serious about JSF pull-out? #2498542
    greg
    Participant

    Low freq radars might be able to detect that a stealth aircraft is in the area, but it doesn’t provide accurate enough info to track a stealth aircraft, much less guide a weapon. They might be able to set up some kind of trap, if the F-22/35 is behaving predictably, where they can alert SAM sites, which might be able to passively detect them before turning their radars on. In any event, it’s going to be a much more difficult task for the SAM operator, to engage Raptors/Lightnings.

    The idea is that low-freq or bistatic ground radars will guide interceptor-fighters (Su35??) with aesa antennas.

    The key element is not the AESA, or Low-frequency, as neither can beat the laws of nature. The key element is heavy DSP by powerful computing power, that will be able to screen out stealth targets deep covered by noise.

    I’m guessing that the imagery in that photo isn’t classified(i.e. isn’t showing specific capabilities/vulnerabilities.)

    If I was LM I woudnt disclose it. Not that a bright electronic engineer cannot figure out the actual info this photo contains, but it gives an excellent graphical assistance, to any tactician that will be called to counter the F-22.

Viewing 15 posts - 166 through 180 (of 301 total)