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wrightwing

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  • in reply to: US wants F-22 fighter successor ideas #2365416
    wrightwing
    Participant

    Exec,

    JSF unfortunately is unsustainable given decreasing procurement buying power over the coming years. Possibly as few as 16 LRIP F-35A jets will be afforded under a base defense budget of $520 billion. How many will be afforded under $450 billion, along with increased inflation eating further into the equation? F-35 unfortunately is not sustainable as by design, requires high volume buys to remain ‘affordable’. Absolutely, if USAF is contemplating a new NG aircraft R&D program now for an insufficient F-22 number, then monies should be rather more realistically and strategically be deployed in a nominal mix of high-end F-22 supplemented by proven, affordable 4.5 gen and flexible mix of UAV/UCAV as proven reliable and required.

    Unfortunately, the F-35A budget is where the cash is. Although, as you said it’s a matter of the AF needing jets NOW, not in 2017 (when first squadrons are hopefully in IOC and cost-effective condition). It’s been a flawed recapitalization strat for at least the 3-4 yrs, I’m sorry. The proof is in the exceedingly wide tac requirement shortfall, significantly more than expected, by 2020 and beyond. By default, the requirements are going to be reduced to match the capability the AF will have… but if AF will only be affording say 30-35 tac units yr, then imho better they be a flexible mix of strategic high-end and proven, reliable 4.5 gen upgrades. This NG TacAir however, unfortunately only distracts attention, reality and strategic thinking about today. (Hopefully that’s not an admission and the intent).

    You do realize that the USAF budget has numerous pots of money right? This means that just because R&D is being conducted on whatever, it’s not coming out of the F-35 budget, and vice versa. You’re also making claims for what the future budget will be, to support your thesis. I suspect what’s more realistic is that the growth of the defense budget will slow compared to recent trends vs. real cuts below current budgets.

    in reply to: F-35 News Thread III #2365420
    wrightwing
    Participant

    That’s correct, we don’t. But this somehow does not prevent you from claiming that the RCS is much lower than with conventional aircraft. And if asked how exactly they achieved that, you simply don’t like to answer..

    Conversely, it doesn’t stop you from making claims, that you can’t back up.:rolleyes:

    A – how can you do that if there are many emitters? Even F-22 only can be in one position at any given time. And it’s inevitable that the position won’t be ideal or most favorable towards all emitters.

    Due to the reduced signature vs. a non-stealthy aircraft, the emitters aren’t going to have overlapping coverage like they would normally have. One of the features on the F-22, is a display with all threat emitters, and their respective threat radii. This allows the F-22 to plot courses to take advantage of those gaps. Now factor in the fact that there’ll be jamming/EA occurring degrading those emitters, and the F-22’s high speed when operating in close proximity, minimizing its exposure.

    B – Exactly. And you need to do that because stealth has its limits.. If your F-22 was as invulnerable as you claim, then you would not bother with that, at all. Remember how vital was it for F-117 to strictly hold to the pre-planned route in order to avoid enemy SAMs? For F-22 or F-35 it’s no different.

    The F-117 didn’t have the advantage of sensor fusion and elaborate ESM systems, so that the pilot could react in real time against unexpected threats. Additionally, the F-117 doesn’t have the speed, agility, and countermeasures that the F-22/35 have. Lastly, the F-117 was less stealthy than either of the other 2.

    C – I suspect that, too. But being involved in a business at least slightly related to RF, I know by experience that the effect you can achieve by applying damping materials (in that case RAM) is quite limited. You can cut the amplitudes to half in certain frequency bands, right, every saved dB counts by at least reducing the max. detection range but it’s years away from any invulnerability

    The only time those angles would be presented to a threat, is if the F-22 was already in the merge. Even then, those angles won’t be presented long enough to maintain a track.

    Come on, don’t make me laugh. You US-fans seem to be obsessed with conspiracies – too much Hollywood, right?

    You’re the one suggesting a conspiracy, not me.

    You can do it in a much simpler and more intelligent way. Simple arrange few exercises with F-22As blue force primarily tasked with free hunt while placing some severe restrictions on the opposing legacy red force – fighter-bomber missions for some, need to escort the fighter-bomber package for others. Then you might furthermore enhance Raptor’s chances by ROE (altitude, speed, initial position and other restrictions) set up in favor of the F-22s and just let the Raptors excel.. Out of the sudden, you got a nice little 1xx:0 score. Noone needs to lie, noone needs to deceive, only the score is pure BS from practical point of view.

    This flies in the face of some known info, as well as common sense. Pilots that have flown against the F-22, have used all the tactics they could think of(i.e. wide dispersion, multi angle, high altitude/high speed, extreme low altitude, etc…), and still met with the same result. The point of exercises it to provide realistic training for all involved, not to give F-22 pilots unrealistic expectations of how their aircraft performs.

    Do you really think that this multi-billion dollar business is run by idiots who are unable to set up a simple ploy in order to aid their goals? The big players like LM and Boeing can easily afford to pay whole crowds of people in all branches of US Forces so that they can effectively influence everything, from orders through funds, R&D projects, right up to future strategy and planning.. It’s been done like that for ages, admit it or not.

    LM/Boeing have nothing to do with Red Flag, Green Flag, etc…. Who’s suggesting conspiracies again exactly?:rolleyes:
    The reason the USAF wanted more F-22s was because of how well they performed, not because they had unrealistic exercises, in order to get more.

    It’s a quite pathetically sounding belief, when I think of it. I just hope your mission planners are wiser and better informed than that, for the good of your own pilots.

    The mission planners have access to far more info than you or I, and numerous tests under realistic conditions to provide baseline data, and to get back on topic, the F-35 will also be rigorously tested for the same kind of data.

    in reply to: The PAK-FA Saga Episode XV #2365647
    wrightwing
    Participant

    Are not ‘stealthier nozzles’, they are a modification of the reverse thrust for the old ATF requirements, that later were changed

    Exacly the same reason why this ‘stealth nozzle’ is studied for the PAKFA

    What a surprise….

    Yes, the 2D nozzles are stealthier. That’s why the F-22 uses them rather than the 3D. The Russians would just leave them as is, if signature management wasn’t a significant factor.

    in reply to: F-35 News Thread III #2365650
    wrightwing
    Participant

    Sorry but you have to meet a decision now. Either you want to claim that a) F-22 exhibits much lower RCS levels than conventional aircraft from all angles (which includes the one from below, as well) or you want to claim that b) Raptor’s RCS was optimized from front and rear and the levels from below and maybe some other angles were not treated because they are less important, anyway.

    We have no way of knowing what the RCS of the F-22 is from that angle, so there’s no way to really address that in the terms that you’re framing it in. I’ll concur that an F-22 is much more likely to be spotted, if it is it the verticle(or a 90 deg bank), and presenting its belly/back and wings to the emitter. I don’t really see that as posing serious restrictions though as A- the F-22 pilot is not likely going to perform maneuvers which would result in presenting that aspect. B- the ESM systems on the Raptor will alert the pilot to emitters that he/she needs to be concerned with, so he/she can stay outside the threat radius. C- I suspect even those angles have been treated in some manner for signature reduction.

    I simply believe that they were much more successful in shooting down the F-22 than claimed. In the time when F-22 fought hard for more funds from the Congress, highlighting its successes and concealing its drawbacks would be quite logical. And even if we consider LM and USAF as being on the opposite side of the barricades (supplier vs client), in that case both sides followed the same goal – more units ordered and procured. So why not cooperate a bit?

    So basically you’re saying that there was a big cover up by the USAF, USN, and USMC, and foreign exchange pilots, so the USAF could get more Raptors(and all those pilots have kept quiet about it).

    If the claimed exercise scores of 1xx:1 were true, then the Raptor would in fact be practically invulnerable. In that case, the whole programme would have been treated differently. I mean, who wouldn’t want a nearly invulnerable fighter?

    Against legacy fighters, the Raptor is practically invulnerable(not totally).

    in reply to: US wants F-22 fighter successor ideas #2365775
    wrightwing
    Participant

    IIRC its datalink capabilities do not compare well with the F-35, the F-22 can’t share its radar data with other friendly assets. Other than the pilot getting on the radio that is.

    That’s a different issue than it’s sensor fusion having obvious shortcomings, and one that’s being addressed with Block updates. The F-22 has never had an issue with receiving data from any manner of sources. It just didn’t have a way to send its data to legacy aircraft via datalink. Its radar, ESM, MLD, 3rd party info, etc… are highly fused though.

    in reply to: F-35 News Thread III #2365777
    wrightwing
    Participant

    I feel I am talking to a brick now. :confused:

    Exactly where have you seen my response saying “curves arent important on the B-2”?

    I don’t remember having talked about the B-2A at all, you must be mistaking me for someone else. :confused:

    How can they not be important on the F-35 and F-22, if they are important on the B-2? You can’t have it both ways. You might not have addressed the B-2, but you did address curves.

    in reply to: F-35 News Thread III #2365779
    wrightwing
    Participant

    I will gladly believe that upon being explained what exactly can you do with to reduce Raptor’s signature from below, for example, to a level that we can call “not conventional”.

    Unless the Raptor is in a 90 deg bank or climb, it’s belly/back are not going to present a flat angle to an emitter, so……the returns aren’t necessarily going to bounce back to the source(hence the sawtooth patterns, combined with RAM coatings).

    Explaining these basic questions is much more persuasive than pointing at some illusory exchange ratios from exercises. Í personally am being very skeptical when it comes to the achieved scores – if a bunch of six Raptors was indeed able to kill virtually hundreds of legacy fighters as the scores indicate, then it would very soon be the only required fighter aircraft in the inventory. Its production would surely not have halted at 187 units..

    Do you believe that the F-15, F-16, and F-18 pilots were giving less than their best efforts, in order to make the F-22 pilots look good?

    I’m not saying that the F-22 is invulnerable, but a lot more thought went into its design, than just making it stealthy from 1 angle against a very narrow frequency range.

    in reply to: The PAK-FA Saga Episode XV #2366009
    wrightwing
    Participant

    We don’t know that the reduced size of the T-50’s verticle stabilizers requires TVC to compensate in regular flight though, especially considering that the entire stabilizer moves, which should give good control authority.

    in reply to: F-35 News Thread III #2366013
    wrightwing
    Participant

    Here to my brief reaction:
    – If you have planform alignment, you try to concentrate the radar return to few peaks at relatively discrete angles. At these angles, the return signal is most likely amplified since it bounces back from several edges at once. That would mean that at these angles the stealth aircraft most likely has much higher RCS than a conventional design without planform alignment. This is a trade-off you pay for having lower RCS at other angles

    This is assuming that only the shaping is being used to reduce RCS, without regard to materials, and RAM coating/paint.

    – if Raptor’s fuselage and canopy have sloping sides, then it means you got rid of a right angle when looking from front. So far so good. You have also seemingly reduced the aircraft’s lateral RCS because when illluminated from a side, it would most likely reflect the energy in different direction. But what noone tells you is that you have not really reduced its RCS, you have only shifted it to different angles/frequencies just like you shift a natural frequency of a structure by adding a strenghtening rib.[/quote]
    That’s one of the main points of stealth, and signature reduction. Ensuring that any RF energy that is reflected, is reflected away from the source, and in a much lower amount due to the construction materials and coatings.

    The outcome is that you might have improved stealthiness in your chosen band but you might have spoiled it in other band(s) – but fanboys are not really interested in these “tiny” details, right?

    Or you may have improved it(though not optimized), or had a negligible effect. You’re still ignoring the other aspects other than just the shape, while offering no evidence to suggest that the RCS will be higher than a conventional aircraft under any conditions.

    – I would be very much interested in seeing how curves with changing radii scatter radar beams in all directions and exactly how does it help the F-22A which has very much a flat belly. If curves are the way to go, then why is the F-22A’s underside, which is most likely to be illuminated by enemy SAMs, flat like a pancake?

    Flat belly or not, what angle does the F-22’s belly appear to SAM radars? Until it gets very close, it’ll be a very shallow angle, and if the SAM radar is emitting, the ESM systems will alert the pilot where the threat radii are.

    in reply to: US wants F-22 fighter successor ideas #2366016
    wrightwing
    Participant

    What exactly are the F-22’s obvious short comings in sensor fusion?

    in reply to: F-35 News Thread III #2366057
    wrightwing
    Participant

    I am glad you said that by yourself.

    I have yet to see any reasonable results from the exercises. If the Raptor is as good as they claim, why not call in RAF Typhoons and AdlA Rafales on an exercise and cream them badly for everyone to see? You are guessing right.. because it’s just BS. F-22 is a very good fighter, arguably the best one so far, but all these exercise scores of 1xx:0 … puhleeze… 🙂

    The point I was making was that the F-22’s RCS doesn’t become conventional, as soon as it presents any other aspect than its frontal one, or the legacy fighters would have a much better exchange ratio.

    in reply to: SAM Threat article #2366245
    wrightwing
    Participant

    There’s an awful lot of revisionist history going on here.

    in reply to: The PAK-FA Saga Episode XV #2366402
    wrightwing
    Participant

    Once it gets the new stealthier nozzles, it will have 2D TVC, not 3D.

    in reply to: F-35 News Thread III #2366691
    wrightwing
    Participant

    LOL, I do my best to stay out of this, but Ww makes sure nonsense arrive in abundant numbers.

    Ww, the point of planar alignment is that a plane has a few peaks, but average lower RCS.
    LO means that the object has an AVERAGE RCS, lower than some yardstick and is thus OVERALL more difficult to spot, using radar.

    I haven’t said there weren’t peaks, just that those peaks were smaller than on conventional aircraft.

    in reply to: F-35 News Thread III #2366693
    wrightwing
    Participant

    The fact that teen fighters weren’t designed to be stealthy from any angle, and the F-22/35 was designed to have reduced RCS from all aspects. Again, for your and Cola’s benefit- this is not to say that certain angles are less favorable than the frontal aspect, but even the peaks from other angles will be lower than a conventional aircraft’s peaks. Again the proof is in the pudding- if there was an easily exploitable vulnerability like you suggest, the results in numerous exercises wouldn’t be so lop sided.

Viewing 15 posts - 706 through 720 (of 3,666 total)