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  • in reply to: Pugachevs Cobra #2434453
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    first its not a new maneuver….it was done in 1955.

    http://www.youtube.com/watch?v=Hax3rhqGJcQ

    But its made in really thin air, and lift is probably made out of enginepower (the long stay in position of su-27)…
    the aerodynamics and center of gravity have probably something to do with which airplanes capable of it.

    in reply to: Non-God-Fearing Aircraft, (stability profile, F-16) #2434457
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    I assume the canard configuration is more unstable and therefore offers more manoeuvrablity compared to the traditional unstable configuration like that used in the F16.

    If this is correct, why is it more unstable, and if not, what’s the point of canard?

    The moment force from the canard in the front to the weight in the back of the airplane, makes the canard much much more responsive. Not just for the responsiveness of the aircraft itself, but it need less angle of attack for the same response, and therefore bleeds less energy in turns.

    Also in high alpha the canards seems to better, for the vortex created by the canards thats generates extra lift on mainwing.

    in reply to: Non-God-Fearing Aircraft, (stability profile, F-16) #2434476
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    You are correct. For canards, the CG is forward of the wing’s center of lift and the canards do provide lift for balance.

    we talking about relaxed stability close-coupled canards like the gripen and the rafale.
    Isnt that only lift in canards in stable airplanes like Saab Viggen? When center of gravity is in front of the lift of the main wing?

    in reply to: MMRCA News and Discussion III #2435126
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    I’d like to see some numbers on Gripen’s climb rates and acceleration if possible. Where is signatory/robban?

    USS.

    approx 80 sek from brake release to 10 km, and futher to altitude 120 s approx to 14 km.
    Think this i figures for Gripen A/B.

    in reply to: MMRCA News and Discussion III #2436687
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    See, we were discussing range-payload comparisons only. Avionics can be taken for granted because Tejas has been a test-bed for the avionics of the Su-30 MKI. The EW suite, jammers, Litening target pod, HMDS etc. of Tejas Mk.1 are equivalent to Gripen – NG. Weapons on it are also contemporary.

    Mk.2 will have greater sensor fusion, and IRST. EADs had earlier offered an AESA radar for the Tejas, however it is not under consideration presently.

    no one here does understand your weird “logic”… so please get the evidence och stop argueing..

    in reply to: MMRCA News and Discussion III #2437883
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    And you’re wrong πŸ™‚
    But I don’t tell you why. Because feeding the trolls is a waste of time.

    Just hope that you understand my sarcasm. they have bigger engines…just follow the link.. for example the rocket engine vulcan 2 makes 1340 kN of thrust πŸ˜‰

    in reply to: 36 Dassault Rafale for Brasil – Official #2438288
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    Look at the SAAB offer to Austria. They overcharged, & lost. It was cheaper than Eurofighter, but not by enough. All subsequent Gripen sales have been at lower prices.

    Part right only, Bae handeled that deal.. and the deal was optimized fΓΆr EF….so not the normal prize for Gripen.
    Saab was not happy of the Bae work and Bae was cut of from future deals.

    in reply to: 36 Dassault Rafale for Brasil – Official #2439134
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    Which AESA ? The one from Thales or from Selex ? I doubt that the gripen NG is anywhere as close to the rafale F3+ as regarding development. The aircraft exist in the form of a unique demonstrator which is far to be representative of an operational aircraft what about all the hardware dev. and integration ? It has taken around decade to dev. the SH, rafale, Typhoon, F35 systems and you would like tyhe gripen NG to be already nearly operational ? 2013 is a minimum to field an operational gripen NG. The dev. of the F3+ started in 2007 even earlier if you take into account that the rafale flew with an AESA radar in 2003 for the first time and that it beneficiates from an ESA architecture since the beginning.

    Sorry I didn’t intended to confuse you. Unless I don’t have a formal statement about LCC I won’t give it too much credit. A lot of desinformation has been made about it recently from Boeing againsat Dassault.

    p4 of this thread (extract)

    I agree with you but that what still given as a reason buy Nelson Jobim I think. Nevertheless all the satistical studies show that if you compare a mono vs twin engine fleet of aicrafts, the attrition is lower for twins over the years.

    the radar is Selex-Saab microwave systems(or nowadays Saab Electronic Defence Systems). And lots of programing is taken from selex radars and PS-05A upgrade 20. So its a quite developed system. But as all modern systems softwares are updated all the time, and the systems getting better and better.
    By all do respect, even if f3+ did fly in 2003, its today a different system, and still not i operation, as for NG. Youre doubts depends on what?
    Rafale have some strong points, but gripen got its too.
    even a gripen A beats any rafale in networking radars.

    in reply to: Rafale News VII #2413404
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    Considering that Brazil likely wants to spend its extra money on developing and integrating their own weapons rather than on anything else the more operational and funded basic aircraft capability on offer would clearly be appreciated. I don’t know if EuFi offered AESA or not to the FAB, but Gripen/Rafale/SH has today more operational multirole integration .

    doesnt rafale has a integration problem in the past?

    in reply to: F-22, A Definite No-No For Japan Now?… #2413405
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    They will buy the F-35.

    to replace those F-15? are y kidding? maybe Silent eagle or eurofighter.
    They want a 2 engine fast jet optimised for Air to Air… maybe some F-35 for complement..

    in reply to: Rafale News VII #2414956
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    Can Rafale operate from the smallish Sao Paolo?

    I agree that in any case Rafale is probably the front runner — Rumors say Brazil wants to build a new aircraft carrier — consider that Eurofighter and F-16 was not on the shortlist, and neither are easily converted to naval operations. Some people claim Gripen may be easier to convert.

    Still, Rafale seems the front runner in Brazil. My uneducated guess is it will win in Brazil, not SH, for political reasons. It seems Brazil wants to keep some “independence” of the US.

    L

    If rafale wins over gripen, i think that ither a sweet TOT, like nuclear subs, or really really good price, is in play.

    in reply to: X-47B Prepares for 1st Flight #2415043
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    one way for the UCAV to complement a F-35 or 4 gen. is to add firepower to a strike and the manned fighter can act as a sensorplatform and “master” and the UCAVs more like “slaves”..
    Cheaper to use, to buy, and expendible.

    in reply to: X-47B Prepares for 1st Flight #2415047
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    Missile motor plumes can be detected at extremely long ranges by IR sensors. For example, the Ukrainian S-200 that shot down Siberia Airlines Flight 1812 over the Black Sea in October 2001 was detected and tracked by an American DSP satellite in geosynchronous orbit at 22,000 miles altitude. The Russians refused to believe anyone could track such a small missile from so far away until they recovered wreckage full of shrapnel holes. The Ukrainians were shamed into confessing after the Americans quietly told them that we had the evidence. This is why F-22, F-35 have IR based missile detection.

    Radar-based missile approach warners do not have the range of IR detectors and only provide warning for the last few seconds prior to impact. Maybe that is enough time to play the ECM/ECCM game successfully or maybe it is not. Time will tell.

    any name of the hardware or the company that does that kind of detector, a hard part in IR spectra is all other radiation sources. Seems really hard for signalprocessing, and alot of false alarms.

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    And maybe the A- and R-Darters would equip Brazil’s next generation of fighters, e.g. Rafale, Super Hornet.

    so why not the gripen NG for Brazil?, seems obvius that the integration costs is next to none..

    in reply to: US Senate halts F-22 funding #2416062
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    Sin you must remember though that the Gripen benefited from a lot off the shelf technology… that wasn’t the case for the F-16 at the time.

    what is shelf tech in gripen A/B? parts of the engine? ejector seat?

Viewing 15 posts - 1,051 through 1,065 (of 1,400 total)