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TooCool_12f

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Viewing 15 posts - 2,761 through 2,775 (of 3,094 total)
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  • in reply to: Rafale v Typhoon and the F22… #2405720
    TooCool_12f
    Participant

    er, jackjack, when you say “it can fly at 110° AoA, that basically means it’s going “backwards”… nozzles are the first part of the aircraft in the air.. now, thrust vectoring or not, no plane flies like that… mostly it can flip to such value and then, regain normal flight through flipping back (forward or backwards)…

    second, the link I gave you last time (march 7th)

    http://www.aoe.vt.edu/~mason/Mason_f/F22.ppt

    it’s from the prototype, yet, aerodynamically, it was even better suited for high AoA than the series model (so the numbers relative to high AoA behavior are obviously very similar or lesser for the production model)

    No TV above 225kts IAS and no roll above 21-22° without TV to stabilize the thing…

    in reply to: Rafale v Typhoon and the F22… #2406022
    TooCool_12f
    Participant

    while we discussed that particular item, I’ve given a link to a presentation with a graph showing roll performance as AoA increased, with and without TV (without it was about 26-28° AoA max)

    it was also specified that TV couldn’t be used at high speeds as it would overstress the airframe (240kts IAS was the limit if my memory serves well)

    in reply to: 4.99 generation fighter #2406170
    TooCool_12f
    Participant

    hem.. yeah, whenever it finally is ready… if ever… 😉

    in reply to: Rafale v Typhoon and the F22… #2406172
    TooCool_12f
    Participant

    oh yeah, you mean, when doing 120kts in a straight line? very useful indeed… 😀

    what counts is not how much AoA you can pull, but how hard can you turn and, eventually, keep your energy (the more the better), but we’ve been through that before

    in reply to: Serbian Defence Industry, pls no flaming #2406174
    TooCool_12f
    Participant

    It is interesting so many Serbian military plants survived NATO bombing campaign or entire above blabbing is fake. Anyway during Serbia’s integration with EU remaining Serbian military complex will fall thanks to “restructuring process” which eventually completes unfinished NATO effort! 🙂

    er, that still remains to be seen.. EU counts several weapons manufacturers (and big ones), and anything bringing benefits into one new Eu member is welcomed, or either, the Eu will have to put more money to compensate…

    anyway, from images that could be seen, lots of missiles/bombs were aimed at stuff having little to no direct military use

    in reply to: 4.99 generation fighter #2406298
    TooCool_12f
    Participant

    politics play a big role, you know? 😉

    now ask yourself, how many politicians really know stuff about aircraft… 😉

    in reply to: 4.99 generation fighter #2406355
    TooCool_12f
    Participant

    sferrin, the US have had some prototypes with canards, but no in service fighters, even if canards do give some advantages over classic “tail” system in certain configurations (high AoA, for example)

    it’s like the delta fighters. the US have had a few (even in service with the F-102 and F-106 for example), still, they don’t use that formula, while, even for stealth, it would be certainly more interesting than some other shapes…

    it’s always a compromise, and the fact that for the few fighters that made it into service the US didn’t choose any canard-equipped fighter doesn’t mean that canards are necessarily inferior… simply that they have chosen another way to do things, another compromise if you prefer

    in reply to: Pakistan Air Force II #2406842
    TooCool_12f
    Participant

    I personaly think that nuclear energy is not the solution for a nation with one of the largest coal reserves. Besides that the nuclear waste is a terrible thing no one can handle sofar. Not related to aviation but had to say.

    except that nuclear waste can be safely stored (it’s been done in France for the last 40 years or so) until we find a way to deal with it (and the 4th gen nuclear reactors are developed to use a good part of that, btw) while “coal waste” is pumped above our heads (CO2)… 😉

    anyway, as you said, it’s not exactly relevant in an aviation enthousiasts’ board 😉

    in reply to: Romania may go for "free" F-16? #2406856
    TooCool_12f
    Participant

    what I find a bit out of line is that a country receiving so heavy financial help to bring it to other european countries’ economical level doesn’t even take time to consider a european product…

    when UK buys the JSF, it’s their money, their “business”… I’m not so sure it’s the same for the romanian “f-16 budget”

    in reply to: Rafale v Typhoon and the F22… #2406898
    TooCool_12f
    Participant

    not magical, just technical that many downplay whenever they have a chance 😉

    in reply to: PAK-FA Saga Episode 13 #2407713
    TooCool_12f
    Participant

    I don’t like the solution though.

    Seems like a performance compromise. . . when the T-50 should have this as the undisputed strong point.

    actually, when you go at speeds near and above mach1, you need to slow down the air coming in the engine, so that may be interesting for keeping the engine performance up at the same time

    in reply to: Yet another F-35 thread #2409698
    TooCool_12f
    Participant

    and how much is it now?

    in reply to: The PAK-FA saga Episode 12.0 #2410085
    TooCool_12f
    Participant

    Oh not only is the difference night and day…its night and day on different planets.

    Its a very different concept and technology of assembly. What you see on the F-22 is mostly the daily access panels that have gaps in them…and as I said the gaps are intentional because thats where the RAM sealants go. On the rest of the outer panels, the spaces are already covered with a different kind of RAM sealant which makes them pretty hard to even see. But the point is…there’s a lot of effort put into optimizing those panels and screws.

    For example:
    http://i42.tinypic.com/f1bak1.jpg

    You will note that there is a material (probably a primer of some sort…I don’t know) applied along all the areas where there are screws and panels. I don’t pretend to know what this is…but you can bet that there is a treatment applied to those areas…ie…a RAM sealant. Now you can do this on the surface of that aircraft because of the technology and method of assembly. Where you see a seam…its there intentionally because under it there is a RAM sealant…and this is done for frequently accessed panels. For non-frequently accessed panels, the seams are covered over with a RAM sealant.

    The T-50 uses the same technology as has been used for decades and clearly not one optimized for anything other than assembly.

    so if I understand you correctly, when you see the “unfinished paint” pic of the F-22 with lines and rivets apparent, it’s doesn’t ring the bell that the irregularities on the T-50 bare metal skin will be greatly reduced or even nonexistent once the coating (RAM + paint) is applied? I don’t say the T-50 will be “invisible”, but I do say, maybe we shoudl all wait to see the final result before making such “final judgement” about plane’s RCS levels, no?

    in reply to: Yet another F-35 thread #2410948
    TooCool_12f
    Participant

    187? why that number?

    in reply to: Yet another F-35 thread #2411099
    TooCool_12f
    Participant

    er.. maybe france should offer the Rafale C to the RAF? it would be a “cheap” option, compared to the typhoon under these conditions 😀

    more seriously, the article is two years old, isn’t there anything more recent?

Viewing 15 posts - 2,761 through 2,775 (of 3,094 total)