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  • in reply to: The PAK-FA News, Pics & Debate Thread XXV #2180966
    mig-31bm
    Participant

    Or you consider the phrase ” the extra features that Raptor have when compared to other VLO aircrafts such the 360°degree stealth coverage, flat nozzles…” a way to negate it instead of recognizing this, just relative, superiority?
    And yes, I was talking precisely about “others VLO” planes not just LO, so only about PAK-FA, J-21& 31 and F-35, all stealth without any doubt but no one with flat noozlees.
    I also tried to explain why this feature is not so important in a plane that is not expected to stay long or even all into enemy controlled territory.

    To be fair, i dont believe any aircraft have 360 degrees stealth , all of them has enormous beam RCS

    about Jamming (only your inboard one as no VLO plane can follow you there)

    There are support stand off jamming too, then there are stand in jamming assets such as MALD-J
    https://basicsaboutaerodynamicsandavionics.wordpress.com/2016/03/29/electronic-countermeasure-ecm/

    .. loitering over enemy controlled territory in order to achieve Air dominance is something actually just impossible to even try.

    Disagree, loitering over enemy territory are what they (VLO aircraft) designed to do

    in reply to: The PAK-FA News, Pics & Debate Thread XXV #2181069
    mig-31bm
    Participant

    Have you hear nothing in the last TEN years about metric wavelenght radars?
    Actual AEW radars can detect and track stealth aircrafts with enough precision to allow ARH missiles to be fired against it, with a way lesser hit ratio than against normal ones but still enought to make the mission pattern F-22 was developed around i.e. I repeat loitering over enemy controlled territory in order to achieve Air dominancejust impossible to even try..

    The problem is not whether you can detect them or not but at what distance ?how well in jamming condition ? , and AEW with low frequency radar isnot thing new ,in fact most if not all AWACs (E-3 , E-2 , A-50 ..etc ) all use low frequency (C band , L band or even lower ) , it is unlikely that Russia , US , china ..etc dont know about the ability of metric frequency radars , they still choose to follow the stealth path and for good reason.

    in reply to: F-35 News and discussion (2016) take III #2181197
    mig-31bm
    Participant

    I could not say it better myself.. Yes, there might be flight regions where the Rafale can pull 5.5g with that config, so Picard was RIGHT, after all.. Thanks for proving my point..

    No, just no!
    when any heavy AG weapons are carried on A-G station( let say 2 2000 lbs bombs) , software automatically limit max G down to 5.4G because that a structure limit, turn harder and the aircraft will break into to small pieces. (the CAT III limiter on F-16 do exactly the same things when weapons are carried on A-G stations). That doesnot in any shape or form mean the Rafale will sustain 5.5 G when it carry 3 2000 L EFT+2 Storm shadow doesn’t matter what speed or altitude it fly at.

    https://www.flightglobal.com/news/articles/pentagon-lowers-f-35-performance-bar-381031/
    http://www.jsfnieuws.nl/?p=1140

    What are you talking about? Both the 5.5g figure for the heavily loaded Rafale (make it 5.4g if you want to) and the 4.6g limit for the [clean] F-35A were confirmed..

    Because of the altitude different, and the different of the turn itself

    sustained 4.6G turn at 15K feet is vastly different (much much harder) from instantaneous 5.5G turn at sea level

    in reply to: F-35 News and discussion (2016) take III #2181200
    mig-31bm
    Participant

    No, you’re not wasting your time.. quite on the contrary, this piece was very useful..
    Let me sum it up, why are we talking about this.. Picard has mentioned somewhere Rafale could go up to Hopsalot has argued the FCS only allows for 4.0g and supplied a source.. I have responded that such limit was unknown to me and that it was in no way a hard limit, to my knowledge.. and that you needed whole envelope map in order to assess such info bcs it could be that the 4.0g limit was only valid for the given speed.. Your response was that I did not grasp aircraft design and flight control laws..

    Anyway, it looks that I was right, after all. The link mentions that at lower speeds the FCS provided higher g-load limits, namely 5.2g or 5.4g. Which is exactly what I have asked about.. And if that is true, then Picard, too was correct on this..

    MSphere, no you are not correct, and neither was Picard, read Garry post!

    You are confusing between “available” G and structure G limit
    Available G = how much lift can the wing and body of the aircraft generated , it depending on AoA, weight, and airspeed
    Structure G limit refers to structural g limit , the FCS of Rafale need to put a limit of 5 G when weapon are carried on heavy A-G station because otherwise the wing will fall of when aircraft turning too hard .
    Now you can argue that the pilot can override the FCS ( or for some reason the FCS shut down and let the pilot do what ever he want ) , and then he can fly the Rafale at maximum speed to generate enough lift for 5,5-6 g sustained turn with 3×2.000 l external fuel tanks, 4 air-to-air missiles and 2 SCALP cruise missiles , and we ignore the structure limit ,there are still several problems:
    1) the Rafale wont be able to fly much faster than mach 0.8 with 3×2.000 l external fuel tanks, 4 air-to-air missiles and 2 SCALP cruise missiles, the drag in that configuration would be enomours
    2) Turn rate is affected by speed , so while 5G turn at mach 0.8 is still decent , a 5G turn at mach 1.8 is almost like not turnning ( as the turn rate reduced to 1-2 degrees/second)
    3)instantaneous turn rate is different from sustained turn rate , while going faster can help improve instantaneous turn rate because more lift will be available through speed, it a different story with sustained turn rate , because in a sustain turn the engine have to overcome drag to maintain speed of aircraft , and as you go faster there will be more drag.
    4)Last but not least , Picard exact statement was : ” In fact, Rafale can achieve 5,5-6 g sustained turn with 3×2.000 l external fuel tanks, 4 air-to-air missiles and 2 SCALP cruise missiles. F-35A can only sustain 4,6 g when in clean configuration.”
    which mean he need to compare them in the same condition which is 15K feet , mach 0.8 . If he take the sustain turn performance of Rafale at sea level then compare it with the F-35 at 15K feet then he is even more of a moron because that would be similar to me compare the speed of the F-35 at 30K feet with speed of the Mig-25 at sea level then declare F-35 is a much faster aircraft .

    in reply to: F-35 News and discussion (2016) take III #2181387
    mig-31bm
    Participant

    Which type of M2K with which engine?
    How do you compare engines with so different flow rate?
    How do you compare single delta (M2K) engine with dual enfine delta canard.????
    Sry i do not see your point.

    It doesn’t matter which Mirage or F-16 or Rafale we talking about
    the range will always be reduced when they fly at low altitude (nap of the earth profile) because the air is alot thicker, which mean there will be more drag, to overcome drag you need more thrust, hence more fuel consumption.

    in reply to: F-35 News and discussion (2016) take III #2181466
    mig-31bm
    Participant

    Except your tb iq decade outdated. Magic missile? 1700 L droptanks? Are yu kidding?

    Physics cannot be out dated unless the Rafale suddenly follow a different Physics law. It not about the actual range of these aircraft but about the different between high altitudes and low altitude. And while these aircraft may carry less fuel than Rafale , they only carry merely 4000 lbs of bombs (aka 2 2000 lbs bombs)

    in reply to: F-35 News and discussion (2016) take III #2181653
    mig-31bm
    Participant

    OK, I’ll bite, what is the combat radius of the Rafale with that load, then?

    for any normal aircraft , changing mission profiles from hi-lo-hi alone already cut range by nearly haft
    http://s17.postimg.org/lvfc3mwjz/israeli_syrian_air_and_sam_strength_analysis_75.jpg
    in Picard example : the mission profile changed from hi-hi-hi to lo-lo-lo , then the aircraft need to carry 6 more 500 lbs bomb ( alot more drag) ,he also changed the fuel tank fromm 600 gallons to 380 gallons ( alot less fuel )
    If Rafale follows physics like others aircraft then it would be lucky to have combat radius of 300 km in such configuration

    And how is that relevant to the F-35?
    And, again, how is that relevant to the F-35?

    Yawn… How is that relevant to the F-35, please, remind me..

    I’d love to have your problems, dude.. Is THAT it?


    Yawn …..
    The example he gave you are by no mean the only mistakes (or BS) made by Picard , you can find dozens more ( about both Rafale and F-35) in the same post he written if you want to look for it , the problem with any number or claims made by Picard is not just they are wrong ,but they shows that he dont understand what he talking about even at basic level and that he keep pull numbers out of thin air , everyone can be wrong but if your claims are constanly being wrong and at a ridiculous level then all your credibility will go out of window.

    in reply to: Canadian Fighter Replacement #2184854
    mig-31bm
    Participant

    strike eagle was an air superiority aircraft equipped for strike, which is the easiest way to convert an airframe, as it has the performance way above what is needed for strike in the first place. The F-16 was an exclusive air to air fighter, again, having extremely high flight performance… from which one could add what it took to make it strike capable. the F-35 was developped as a strike aircraft and they try to make pretend to be also an air superiority platform.

    any evidence to back up your theory ? number and what not?

    in reply to: Mig-31's Top Speed With Weapons Load #2185479
    mig-31bm
    Participant

    Flight Manual

    I dont remember seeing time limit of 1 minute for F-15C at mach 2.3 in it’s manual , can you post the photo of that page?

    in reply to: Canadian Fighter Replacement #2187881
    mig-31bm
    Participant

    Larger plane….more fuel. The Gripen can more than adequately defend Canadian airspace and do so at longer range than the F35 without tanks. It can carry as much in A2A as the legacy hornet with tanks. Not a problem.

    e.

    Feom kinematics pov
    Gripen with 3 tank will have no advantage over the traditional hornet, similar speed (probably even slower) , not agile

    in reply to: Canadian Fighter Replacement #2187986
    mig-31bm
    Participant

    The F35 may have narrow band frontal stealth.

    F-35 stealth can affect even AWACS radar so it is not exactly narrow band, most AWACS use S, L band radar
    https://www.flightglobal.com/news/articles/eurofighter-boasts-typhoon-reign-over-f-35-345265/

    in reply to: F-35 News and discussion (2016) take III #2189776
    mig-31bm
    Participant

    On what bandwidth? From what angle? What you seems doesn’t have understood in my post is that

    From this, https://www.flightglobal.com/news/articles/eurofighter-boasts-typhoon-reign-over-f-35-345265/
    it appears that even AWACs with their powerful low frequency radar need to stay out of F-35 frontal cone (60 degree) to detect it.

    there will be several radars, several AD systems operating in different bands all acting at the same time.

    there will be several F-35, MALD-J too

    Actually, to counter stealth those system are evolving into a multistatic environment, with many of them able to made direct use of emission coming from other sources.

    And how far are these systems have to be located from each other to be always able to look at stealth aircraft from their non stealthy aspects ?

    Problem is that f-35 was initially marketed as being perfectly capable to operate just alone and so to greatly compensate its way higher unitary cost. So the comparison would need to be made between VLO RCS alone against LO RCS + supports.
    For USN there will growlers available , so no problem but what have USAF taken instead of EF-111?

    MALD-J , any aircraft carry ALQ-184, ALQ-131, and even F-35 itself can do seft support jamming with APG-81, ASQ-239 and ALE-70

    in reply to: Norwegian Instructor Lies about F-35 BFM Performance #2189778
    mig-31bm
    Participant

    IMHO the wing station is preferable since there are many of them and they can be easily bolted on the current airframe. It might be limited to the outer stations in order for the control surfaces not to be affected.

    The centerline station is a no go due to tangle issues in any serious maneuvering.

    The spine is possible but might be too close to the exhaust. Remember that the tail mounted F-16 towed decoy are a couple of feet above the engine plume.
    btw, the Super Hornet’s ALE-55s are also pylon mounted (ie not integral to the plane like teh F-16’s tail mounted units).

    you got things mixed up
    actually ALE-50 on F-16 is integrated with station 2/8 pylon
    http://s16.postimg.org/62g47cll1/A_CATMAIM_92.jpg
    while ALE-55 on F-18 is integrated on the upper body just few feet from the exhaust
    http://s9.postimg.org/gpruil5jj/idecmjpg.jpg
    no fighter is going to perform high G maneuver when they deployed towed decoy

    in reply to: Norwegian Instructor Lies about F-35 BFM Performance #2189931
    mig-31bm
    Participant

    A better place for them might be a VLO conformal pod on the wing stations since they are already wired.

    you mean carry a whole new pod on wing station ? , wouldn’t that be counter productive? , in my opinion F-35 will carry ALE-70 the same way F-18E Carry ALE-55

    in reply to: Norwegian Instructor Lies about F-35 BFM Performance #2190094
    mig-31bm
    Participant

    Does F35 have any active jamming except the main radar? (except the possibilities of using pods or MALD-J’s)

    yes

    Always active, AN/ASQ-239 provides all-aspect, broadband protection, allowing the F-35 to reach well-defended targets and suppress enemy radars. The system stands alone in its ability to operate in signal-dense environments, providing the aircraft with radio-frequency and infrared countermeasures,

    http://www.baesystems.com/en/product/an-asq-239-f-35-ew-countermeasure-system
    and

    BAE Systems Electronic Solutions, Nashua, N.H., is being awarded a $47,352,248 indefinite-delivery/indefinite-quantity delivery order contract for the manufacture of the transmitter countermeasures T-1687A/ALE-70 (V) in support of the Joint Strike Fighter program. – See more at: http://www.afcea.org/content/?q=taxonomy/term/1213#.dpuf

Viewing 15 posts - 526 through 540 (of 1,759 total)