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Vnomad

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Viewing 15 posts - 916 through 930 (of 2,429 total)
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  • in reply to: J-11D or Su-35 for Pakistan #2177435
    Vnomad
    Participant

    Don’t be silly now..
    It does not help Rename it(the Su-27SKM) into another J-** designation or put WS-10 engines and AESA on it.. The airframe SCREAM FLANKER all over it..

    Well, let me ask another ‘silly’ question – given that the airframe screams ‘Flanker’, for every J-11 that is produced at Shenyang, is a royalty paid to Russia?

    There exist protocols(yes Russians love protocols..) in the license-production. Should China not honor it, then its bye bye for those engine contracts along other deals between them.

    China would never Risk it.

    Engine contracts for the AL-31? I imagine they’ll all be allowed to lapse without replacement as the WS-10 enters widespread service. Which other deal exists, which if cancelled would lead to China paying a heavier price than Russia?

    Besides, have ANYONE ever seen a stand at Airshows, where J-11 has been advertised for export?
    No I did not think so..

    As long as its powered by the AL-31, it obviously not viable as an export option.

    in reply to: J-11D or Su-35 for Pakistan #2177439
    Vnomad
    Participant

    Because (some) analysts feel that China is beyond making unlicensed copies for sale past the F7s, and it would not be appropriate for the Chinese-Russian alliance, as well as for the future of the SCO.

    I am holding out for a sinofied Su35 tailored to maritime roles for the PN/PAF. I would think it best without TVC though.

    The alliance, such as it is, is quite lopsided. Of course, the Chinese with there huge economic heft might not be too concerned about the revenue lost by foregoing J-11 exports. But if they did decide to go ahead and offer the aircraft to Pakistan, I doubt Russia would try to make an issue out of it, in light of current geopolitical realities (recession, sanctions, depressed commodity prices, etc).

    in reply to: The truth about the F-22 #2177459
    Vnomad
    Participant

    That’s not what we were told. Lockheed had said the F 22 is the stealthiest aircraft ever built. They maintained this line even when the F-35 was being produced. Now they say the F-35 is the most stealthy aircraft. Question is, if stealth is the primary factor then why use the F-22 at all?

    The F-22 is long out of production. There’s a decade’s gap between that and the F-35.

    USAF of course. Because they were told the F 22 is more stealthy.

    You’ve got that backwards. The JSF program’s requirements vis a vis stealth requirement were less stringent that that for the ATF program, as drafted by the US DoD (incl. the USAF). Based on cost considerations. However, recent statements coming from the USAF & LM suggest that the RCS actually delivered was well above spec, bettering the F-22. Critics say that, if true, this only applies to new jets and that the effective RCS will rise with time and usage.

    in reply to: J-11D or Su-35 for Pakistan #2177552
    Vnomad
    Participant

    If you knew the very back ground history of J-11, you would also know that any export of J-11 is prohibited. Its eighter Russian Flankers or some other two engines jets.

    Could you please elaborate. Why would China refuse to export a J-11 powered by pair of WS-10As to a near-ally i.e. Pakistan? Yes its roots lie in a license-production deal for the Su-27, but that was ages ago. The design has been extensively (entirely?) indigenized over the years.

    in reply to: F-35 News, Multimedia & Discussion thread (2015) – Take two #2177555
    Vnomad
    Participant

    Not neutral spectator but wise buyer with nation’s best interest in mind. If the become LM’s PR instead (as in that document, among other things), they are betraying their primary mission

    I’m sure they’d consider it if Dassault offered them a hefty payoff. Maybe get a pool going with EF, SAAB, Boeing and all other adversely affected companies. 😉

    Seriously though, the USAF may well be doing what is the best thing for the nation, in its own considered opinion. One may agree or disagree with its choices, but there’s no grounds for questioning its motives, so far.

    in reply to: The truth about the F-22 #2177558
    Vnomad
    Participant

    That’s a joke, right? 🙂

    Gen Mike Hostage said something similar.

    in reply to: F-35 News, Multimedia & Discussion thread (2015) – Take two #2177699
    Vnomad
    Participant

    Yes, I have read it. And everything in said documents ia nothing but blatant advertising for the F-35.

    While the USAF should be a neutral spectator? Why?

    in reply to: The truth about the F-22 #2177702
    Vnomad
    Participant

    Just please don’t quote me that clown. He starts BSing the second he opens his mouth, just to thrash talk Su-30MK. He should really stick with military stuff and leave science to engineers. You know, 28 degree turn @ 20000 feet (sustained or not) is physically impossible as F-22 flying to Mars and back, even at its empty weight.

    Even while playing to the crowd, I thought he was fairly complimentary – ‘these are young guys, still learning on the aircraft… eventually they’ll be able to beat the F-15 & F-16 on a regular basis‘.

    I don’t want to make the same calculation I’ve already made in this forum before, but just to tell about its absurdity; A clean F-16 with 25% fuel can sustain 11,8 deg/s at 20k feet. Same F-16 sustains 21,5 deg/s at S/L. Now IF F-22 sustains 28 deg/s at 20k feet, it could easily sustain 50+ deg/s at S/L. F-16 can really sustain 21-22 deg/s for 360 degree turns in airshows. 10 years in active service, countless demo flights and F-22 didn’t even sustained 20.

    I agree its not happening at 20k feet. He probably mis-spoke. Don’t think air shows are really relevant. But point again was that the (F-15) pilot put the F-22 on a pedestal when it comes to BFM.

    How about thinking about the possibility of no single military pilot has free-will to openly talk about such things? Let me talk about pilot quotes;

    Typhoon pilots say, Su-30MKI demonstated better maneuverability than their aircraft. Typhoon pilots say F-22 is at disadvantage after the merge.
    So Su-30MKI>Typhoon>F-22 according to Typhoon pilots.
    Our idiot colonel claims F-22 > Su-30MKI > F-15C directly contradicting to what Typhoon pilots are saying.

    And please, DO question the pilot’s credilibity in such claims;

    At low speeds/lower altitudes, one would expect the Su-30MKI to be more maneuverable.

    But again, even with ‘we more than held our own’ comments, that admiration for the F-22 still filters through. I find it hard to believe that its, as you suggest, entirely unfounded.

    “Raptor has vector thrust: Typhoon doesn’t,” he said. “What the aircraft can do, it’s incredible. The Typhoon just doesn’t do that.”Wg Cdr. Rich Wells, RAF.

    in reply to: The truth about the F-22 #2177742
    Vnomad
    Participant

    If you fuel them with same ratio as their wing areas (so that we can count in the drag of their physical differences in size, and make them fueled for same range);

    You’re equating drag with wing area. Only applies to a clean jet while any aircraft entering BFM will be combat configured with missiles.

    For Su-27/35 I wouldn’t say anything conclusive just by looking at their T/W. But T/W difference between F-22 and F-15E is really HUGE.

    And yet, F-15 drivers hold the F-22 in certain degree of awe even in a WVR fight Col Fornof’s Red Flag briefing comes to mind – (The F-15 has an instantaneous [turn rate] of 21 [degrees] and a sustained [turn rate] of about 15-20 degrees. The Raptor can sustain 28 degrees.). Either the F-22’s performance well exceeds what is publicly known or its airframe design delivers better efficiency than legacy models.

    Same applies to the Su-27. Against the F-15, it’ll come down to how-high-how-fast. But to suggest that it’ll exceed the F-22 almost across the spectrum, goes against everything that operational pilots are saying about it.

    in reply to: Indian Air Force Thread 20 #2178088
    Vnomad
    Participant

    Can you shed some light on the PAK-FA procurement program of the Indian Air Force?

    Based on some media reports it seems the Indian Air Force will purchase an un specified number of PAK FAs off the shelf within the next 3-4 years and eventually the FGFA will roll out in another 10 years. Thanks.

    Can’t say I know any more than what’s been reported in the press. The PAK FA requirement started out with about 250 jets, a figure which was then formally cut to 127. Then last month they again announced that the projection had been downsized to 65 units, probably off-the-shelf.

    Given that the program is still a long while from operationalization, its not likely that the actual order would be placed any time soon. Which leaves a basic question unanswered – why cut a ‘notional’ order? The bulk of the actual expenditure is a decade away and the cut isn’t going improve the current cash-flow situation.

    My guess is, they’re trying to back out of the FGFA program. The window for India to be involved in the design has long since expired, the ToT offered is less than expected, and the workshare is minuscule. Instead of running a ‘joint venture’, I believe they’re coming around to the opinion that a normal PAK FA acquisition (with possible licensed production a la Su-30MKI) is preferable. No R&D investment.

    Though where most parties would have made a clean break, the India govt is backing away quite slowly, since the deal has a political dimension (an outright cancellation would be perceived as a snub to Russia).

    in reply to: The truth about the F-22 #2178123
    Vnomad
    Participant

    F-22 doesn’t have better T/W than F-15 or Su-27, that is assuming 35000 pound class DO means 35000 pound class as some disagree. As for maneuverability, I had written a thing or two about this in PAK-FA thread, I didn’t go further as it was OT.

    I was referring to Su-27 with the first part. The F-22 has a higher TWR compared to all variants of the Su-27 incl. the Su-35S (assuming the same fuel fraction). If we go with public figures (which I’m very sceptical about), the F-15 has a greater g-limit in at a specific speed and altitude (its roughly achieves corner velocity there). But across a broader span of flight regimes, I don’t see it keeping up with the F-22 with its lower effective wing loading (body-lift) and TVC.

    Anecdotal, but comes from the other side – Ex. Taufan: Turning and burning with the best. Most other accounts of BFM against the F-22 run on a similar theme.

    The Rafale/Su-30 can perhaps match it in the subsonic region, F-15 in the transonic and the F-16/EF would come close when flying Mach 1.2+. But as a whole, its only peer will be the PAK FA.

    in reply to: The truth about the F-22 #2178218
    Vnomad
    Participant

    Based on what exactly?

    Thrust to weight ratios. Empirical observations vis a vis drag. But more importantly, details that come through from test pilots, squadron pilots, exercises, etc. But I admit it is a general impression rather than a conclusion based on hard numbers.

    in reply to: The truth about the F-22 #2178222
    Vnomad
    Participant

    I have serious doubts about this.. The Raptor is the only fighter giving emphasis on rear aspect RCS reduction. There might be discrete angles where the F-35 has smaller RCS, but overall value is hardly anywhere near the F-22.

    While the F-22 is stealthier from the rear aspect, the other claim is much harder to verify.

    in reply to: The truth about the F-22 #2178235
    Vnomad
    Participant

    F-22 will surely have better maneuverability than F-16/J-10/Rafale/Typhoon especially with fuel for long range flights and at high altitude for air superiority missions. Still for same mission, I expect Su-27 and F-15 to offer better overall maneuverability though.

    Maneuverability is a rather nebulous term. Depends to a great extent on the flight regime. At transonic and supersonic regime the only aircraft that can match the F-22 will be the PAK FA, with a slicked off EF being the next best thing.

    At lower speeds its an open field – MiG-29, Rafale, SH, F-35 all fairly competitive. But the F-22 will still be better than the baseline Su-27 and far better than all variants of the F-15.

    in reply to: Indian Air Force Thread 20 #2178245
    Vnomad
    Participant

    The specificity of the claims distinguishes it from most unsourced journalism. Better than even money that it’s accurate.

    The fact that its posted on a blog instead of a magazine/newspaper and that the author’s credentials are entirely unknown would suggest otherwise.

    The real question is why is there apparently no provision or planning for an IRST/EOTS capability for AMCA? Actually, forget AMCA, why is no such capability planned for Tejas Mk. 2??

    Could be there eventually on the AMCA. Doesn’t necessarily need to be presnt on the models.

    The Tejas Mk2 will be equipped with the Litening V, so EOTS-like capability is already accounted for. Question is, are they planning a LWIR sensor? Sources vary.

Viewing 15 posts - 916 through 930 (of 2,429 total)