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Satorian

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Viewing 15 posts - 511 through 525 (of 690 total)
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  • in reply to: SU-35 vs. the European fighters #2473977
    Satorian
    Participant

    I think he is being sarcastic

    Well, you never know around aviation forums. :p I tend to forget which side of the fence people are on and slip into taking everything at face value. 🙂

    I think the engagements between modern 4th gen fighters come down to who suprises the other with his pants down first.

    in reply to: SU-35 vs. the European fighters #2473984
    Satorian
    Participant

    The Meteor , Aim-120C will be useless for Euro canards , the Su-35BM will destroy those missiles (i think the last quote was 8 minutes to destroy 6 BVR missiles) and it would come to dog fighting .

    How exactly is it going to do that?

    in reply to: SU-35 vs. the European fighters #2473991
    Satorian
    Participant

    Assuming you mean a head-on BVR engagement, I think it’d be a close call either way, at least by what is publicly known about the different aircraft.

    In terms of aerodynamic/kinetic performance the Su-35BM and at least the Typhoon seem to be on a reasonable parity, AIM-120B/C5 vs R-77 or METEOR vs R-77M seem close to parity and going by their radars none of them is stealthy enough to not be detected outside of MRM employment parameters by the respective other.
    It might indeed come down to the EWS and how long the shot can be denied.
    WVR, between the AIM-9X, ASRAAM-132, IRIS-T and R-73, there probably is preciously little difference as well.

    Going down to guns, I’d hand it to the Su-35BM though. But then again, how likely is that to happen?

    in reply to: F-22 internal fuel #2474202
    Satorian
    Participant

    Dont automatically assume that missiles are going to work. first example is Su-34.

    I don’t understand. Why shouldn’t a AIM-9X, ASR-132, IRIS-T work against the Su-34?

    I was under the impression that modern IR SRMs got pretty high Pk.

    in reply to: F-22 internal fuel #2474573
    Satorian
    Participant

    Also, the top speed on that graph is incorrect if Paul Metz is to be believed. Should go up to at least Mach 2.4

    It looks like Mach 2 is an imposed hard limit on the graph. From the general shape one could speculate what speed the F-22 terminally reaches, but it seems like either the exact figure is supposed to be classified or perhaps the FLCS limits the F-22 to Mach 2 for some technical reason, like preserving the RAM coating, saving the engine or whatever else can crop up.

    in reply to: F-22 internal fuel #2474748
    Satorian
    Participant

    Does anyone have the Sfc of the F100 @ afterburner ?

    EDIT- Just checked most figures for F-15C give it at 2.100lb fuel / lb thrust per hour so that would make it at 2.100 x 29,000 = 60,900 of fuel consumed per engine per hour in After burner . So 2 engines would consmume 121800 lb’s of fuel in an hour . So if we were to calculate the AB use , the AW week article males some sence . On internal Fuel the F-15 cannot maintain AFter burner for much more then 6.5 minutes and if we figure in that it takes some ammount of fuel to take off , reach the theater of opperation and you need certain reserves to get back to base or hook upto a tanker – i dont think the F-15 Can maintain much AB for more then 2.5 minutes . So much for some claims of Mach 1.5 for 2 hours thirty minutes .

    The website i used doesnt provide the Sfc for Max dry setting but even if we were to assume that the Sfc @ max dry setting is 35% of that @ AB (i think this is quite a reasonable value but ofcourse its just an assumption) then i dont think that the F-15C can even cruise at max dry setting for 2,5 hours ..

    Those are figures for MSL though. At height, the fuel consumption goes down to a fraction of that at full thrust setting due to changing air density. At 36,000 ft it should be roughtly 25% of that, if I’m not mistaken. But, to add another layer onto that, the numbers given are probably for static installed thrust. At speed, and depending on how much air the intake feeds, thrust numbers can vary again.

    http://www.jet-engine.net/miltfspec.html

    This is a fantastic link! Thank you very much for that!

    in reply to: Eurofighter Typhoon news II #2474942
    Satorian
    Participant

    Where is that info regarding the TVC not being used from?

    in reply to: F-22 internal fuel #2475635
    Satorian
    Participant

    Why? The difference in internal fuel is 2 tons.

    What’s the latest consensus on the F-22’s internal fuel capacity?

    And I was just quipping there. Cheap shot at Kopp’s creative accounting.

    in reply to: F-22 internal fuel #2475715
    Satorian
    Participant

    Could be “with equal loads” ie. 8 AAMs full internal fuel? :confused:

    And three drop tanks, at least on the F-15 to “equalize” fuel loads. 😀

    in reply to: F-22 internal fuel #2475719
    Satorian
    Participant

    Well the graphic does not seem to represent the airframe performance but the engines thrust generation depending on altitude and mach number. He basically compares the F100 to the F119, with the later producing about the same or more thrust dry than the former on reheat. I don’t think the figures are that unreasonable at all. The F119 is optimised to generate a lot of thrust dry also at high mach numbers and altitudes that actually enables the F-22 to fly supersonically at very high altitudes on dry thrust only.

    While that sounds like a possible approach, don’t the thrust figures actually depend too much on intake design to just compare raw jet engine numbers for specific flight regimes?

    But perhaps you are right and he mildly fraudulently just compares theoretical jet engine performance and labels it by the airframes the engines are employed in.

    I guess this kind of ‘creativity’ is why people approach his work so cautiously.

    in reply to: F-22 internal fuel #2475732
    Satorian
    Participant

    http://www.ausairpower.net/FA-22-Envelope-4.png

    What is the big deal? He made a mistake, $hit happens. The diagram above should say “F-15C non-Afterburning envelope”.
    It just shows that very few people understand what he is talking about or the level of analysis in his articles. 🙂

    I don’t think so. Using consistent nomenclature, he would have called it “Dry Thrust”, just like he did for the F-22 (which is still called the F/A-22 in the diagram by the way). And you honestly think he wouldn’t have corrected the mistake you claim in all those years?

    Just like others here, I assume he used some heavy and draggy combat load for the F-15C.

    in reply to: Rafale news III: the return of the revenge #2475939
    Satorian
    Participant

    That linked article about the Dutch evaluation spoke of the Rafale F4.

    @TMor:
    Interestingly, many of the improvements you mention for 2020-2025, like radar, M88-3 and CFT, have in principle been planned by the year 2001 for 2006 already as Rafale Mk2 for export.
    http://aviationweek.com/shownews/01paris1/airfrm08.htm

    Seems Dassault sometimes need longer than planned as well. :p

    I hope the upgrades progress as quickly as possible now. The bird deserves it.

    in reply to: Rafale news III: the return of the revenge #2476168
    Satorian
    Participant

    What’s the supposed/planned/rumoured spec for the F4 standard? Is there anything out on that yet?

    in reply to: Eurofighter Typhoon excellent photos #2480170
    Satorian
    Participant

    If anyone is wondering about the music in that video:

    Amy Macdonald – Footballer’s Wife

    Great video, really! Nice composition, stunning shots. Definitely a keeper.

    in reply to: Israel & Iran v2.0 #2480366
    Satorian
    Participant

    Well given what you wrote – dignity is the last word I’d use for your post, frankly – because it came across as really weird and I am not even Israeli (or horror of horrors, right wing US neocon republican etc etc)! And yes, cognitive dissonance – since you latched on to semantics to whitewash Irans rather odious record in supporting Pal militias – which are as adept at brutalizing their own people as attacking Israel and then ended with a plaintive oh i want everyone to live with peace & dignity ..etc! Oh well!!

    I’m under the impression that you misread what I wrote because you wanted to see the post in a specific light.
    Please note that I used words like:

    “I wonder”
    “from what I could get”
    “I’ve heard several Iranian voices”
    “from what I have read”
    “I have read of”

    That’s not semantics, that’s relating the fact that I have no first-hand knowledge of the situation and what I have is fragmentary. This should also have revealed the nature of my post as not claiming objective truth and general veracity, but just pitching in one more potential aspect of the debate.

    I don’t actually know what’s really happening in Iran and I’m not planning to whitewash anything. I don’t have a personal believe of what’s really happening there. If the things related are factually wrong, please just point out why and how they are wrong and refrain from attacking me personally.

    Wouldnt that..errmmm…require the Iranians to first realise that the state of Israel has a right to exist and stop sponsoring attacks on the same?

    Yes, they should acknowledge Israel and respect the nation’s and its inhabitants’ rights. I never claimed anything else. What I tried to point out was that some Iranians seemingly are opposed to the state Israel as a national structure, not the people living there or the Jewish religion. Whether that’s actually true is open to debate.

    (On a side note: The last paragraph of my post was a call for all of them to acknowledge each other and get along. I’m in favour of all of them dropping the religious and nationalist BS and finally treating each other as human beings and equals.)

    Contradictory things, hmm?

    To quote Merriam Webster on cognitive dissonance:
    “psychological conflict resulting from incongruous beliefs and attitudes held simultaneously”

    The thing is: I don’t have any particular belief on what’s going in Iran. Iranian plans for maximum possible hostility (perhaps also of the nuclear kind) seem as possible to me as the whole stance being governmental posturing to distract people away from inner-Iranian issues and problems. I don’t have nearly enough information to quantify their respective likelihoods, so I don’t. Which is also why I opened my post with “I wonder…”.

    I don’t have a lot of beliefs or opinions.

    Your post was a masterpiece in semantics!

    You are giving me too much credit. At most it was uninformed and only introducing a very specific aspect of the debate. I would still like to know how any part of my post exploited semantics in your reasoning.

    I mean, Israel just had a brutal war recently with the Pal militias, backed by Iran. Several scores of people died, and you have the cheek or naivete (I dont know which, which is why I said cognitive dissonance!) to suggest that its not the Israelis the Iranians dislike but the state of Israel which they dont seek to destroy but abolish etc etc.

    Again, you read my post on the wrong premise. (And still, your grasp on cognitive dissonance is slippery.)
    I don’t know anything about Pal militias (neither do Google or Wikipedia it seems, unless they usually go by another name) and I only know the whole ME conflict by its broadest strokes. The words I used should have made it clear that I was relating a possible, particular stance associated with some Iranians.

    By jove, I read that stuff three times over – AND it still sounds as weird as the first time I read it!! How exactly do you think the Iranians plan to “abolish” the state of Israel? By giving them the Comfy Chair treatment from Monty Python?? Or stuffed teddy bears signed by Ahm. himself?

    The same way most politicians go about demanded reforms: Shouting loudly and not doing anything. Politicians call for a lot of things all the time without ever acting upon them.
    Also, people are free to have their opinions and don’t necessarily have to act upon them. Somebody who thinks gun ownership should be banned might never even do a single thing to actually get it banned while still demanding the ban when the issue comes up in discussion. Actually most people never do a single thing about anything, no matter how much it supposedly peeves them.

    Or could it be that they have put their money where their mouth is, by repeatedly sponsoring groups that attack Israel, and are now working towards a nuclear weapon exactly because it will give them full deterrence against israeli retaliation!

    Could be. I don’t know. You have reliable data on that?

Viewing 15 posts - 511 through 525 (of 690 total)