Now, considering their demonstrated respective high AoA and low speed capabilities, the only thing that prevent a Rafale or Gripen to emulate F-18 or F-35 AoA are the traditional squadron Op limits, certainly not their structural or aerodynamic limits
F-14 demonstrated high AoA and low speed capability too, but that doesn’t mean it can simulate a helicopter/pedal turn like F-18 or F-35
Gripen/Rafale won’t be any different
Thanks for the video but i’m not overly impressed, I saw Kerherve do that at Farborough on the Rafale M straight off the Runway after a vertical climb, he actually made TWO 360*.
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Then where is the video of Rafale pedal turn? why do you have to result to a photo where the Rafale direction is unclear? as far as iam concern,that photo only show Rafale turn down toward the earth after a turn, that doesn’t show it perform Kulbit, Herbst or Helicopter turn
So you’d have tried everything to make your false point which was: Every 9.0G A-C is capable of pulling more, FCS is god.
Yes, every 9G aircraft are capable of pulling more, ultimate structure G limit are never the same as operational G limit, there are cases of 6.5 G fighters pulling 8G, 9G, this is no surprise that 9G fighters can pull 10G, 11G
Nope, I didn’t miss anything but you certainly did, Op G load depends directly on structural load limits; instantaneous or sustained, it matters little, end of the topic, if you haven’t got it yet, I can’t help you with that .
Nope, operational instantaneous G-load depend on speed, altitude (air density), and aircraft weight
Sustain G load depend on speed, altitude, aircraft weight, drag, thrust
F-15A/C operational G limit is 8.5G
F-16C operational G limit is 9G
Guess who has better sustained G limit at 20.000 feet?
F-16 can sustain about 4.8G while F-15 can sustain 5.5G
you should try to at least learn the minimum so as not clutter the topic with terms you didn’t understand
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@ garryA, about your last pic.. all the opposing aircraft has to do is extend in a high yoyo manoeuver and close in for a gun kill from above… the X-31A falling like a leaf would just be a nice target in such a scenario.. looks nice on paper, but you need an opponent that coooperates with you to get such a kill 😉
Yes, in combat, it will look like the two photos above it, the last picture is only an illustration of what a pedal turn look like if pilot keep steering his plane around
Speak for yourself, you visibly didn’t read what is written in the doc you posted.
If had, you would have figured that he doesn’t mention the F-16 in the topic of superstall but the fact that it posses an Alpha limiter as I was saying, so your little literature doesn’t serve your cause and certainly don’t support you calling people names, when it comes to mistaking A-C, testing flight envelops, spin recovery and post-stall maneuvring on the topic, you should apply them to yourself. For the reason for F-16 AoA limitation see DRYDEN Flight test reports
Do you think you can divert the attention away from your claim earlier?
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Actually Rafale performed Post stall maneuvers, the Herbst maneuver among them, controled flight below 30kt during a mock fight vs a Mirage 2000, this is a lot more relevant to AdlA and M.N than a 50* AoA Op limit, a guy like Yves Kerherve, Rafale M test pilot and chief test pilot for the Rafale program at the time conclusion were: We don’t need TVC. I’ll take his specialist word over yours any time.
so Russian engineer didn’t know anything when they put TVC on Su-30 , SU-35 and Su-57 ?
Besides, flying slow at high AoA is not a thing out of ordinary.
Gripen at 90* AoA demonstrated that it could initiate a yaw movement with ailerons inputs and stop them the very same way, that’s what CONTROLED flight means, not getting your hands off the stick and wait for the A-C to recover by itself.
You won’t do that with a F-16, boy, and spin recovery doesn’t equal to controlled flight in post-stall situation, if you cannot see the difference between the two, there is no point having this conversation in the first place, regardless of the biased opinion of those who probably doesn’t know a bit about Gripen or Rafale high AoA test flights, and btw however hard they tried, Rafale test pilots during high AoA flight test (AoA relaxed FCS) never managed to put it into a superstall, that’s arodynamics vs FCS “twicks”.Yes they do, Rafale low speed nose pointing capability is one of its most remarked capabilities, ask any pilot who got into a dog fight vs them, it can roll at 80kt and even lower than that, THIS is what CONTROLED flight means, and they are much less prone to loss of control than conventional A-Cs like the F-16 I quoted for example, which also mean that they CAN initiate maneuvers and stop them at those AoA, you really think post-stall maneuvers like that Gripen or Rafale pulled during testing are done without full 3-axis control?
In your doc, they put F-35 into a SPIN to test its recovery capability, from there I am standing this doesn’t qualify as post stall maneuvers
You are so full of ****
For the so called 100 degrees AoA test, Gripen was put into a spin an see how it recover with flight control system inputs, exactly what happened in F-16 and F-35 spin test, they all initiate a yaw movement with ailerons/rudder inputs and stop them the very same way, but that doesn’t mean they all have the same level of nose pointing authority, just because your aircraft can recover from a spin at high AoA doesn’t mean the same aircraft will have usable control authority for post stall maneuver in combat, because able to recover or roll at high AoA is not enough, your yaw maneuver at high AoA need to be accurate. That why Gripen was designed to return to normal flight when pilot go to high angle of attack
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And for your information, in F-16 spin test, the pilot didn’t just let his hand go off the stick and wait for the aircraft to recover by itself
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Now for the full of it hilarious bit.
What exactly does this have to do with its Ultimate Structural Load limit I keep mentioning?
An A-C with a lower margin than the standard 1.5 will have a 10.5 g, with 1.2 Ultimate Structural load like E-F, you perfectly can test it a 9.9 g to see how it behaves it doesn’t mean you will pull 11.0 or 10g without problems, and its Operational Load limit is firmly 9.0G.
If you cannot comprehend what is written you should try to at least learn the minimum so as not clutter the topic with material you didn’t understand in the first place, the 0.9g beyond the operational limit mention should have grabbed your attention before you decided to show off.
0.9 G over an operational limit is common in flight testing, it is designed to explore the behaviour of the A-C passed those Op limits, nothing fancy there, but of course for fanboys it is SOOO exiting, missing the point totally, so back to the topic of designed Ultimate Structural Load, come back when you digested it, if ever, a clue: The standard is 1.5, that of all F-35 have been lowered.
It really much does, especially with your comment that somehow Eurofighter and F-35 will l be popping rivets and breaking bits long before they reach 10G-11G, yet F-35 had been flown to 9.9G, 0.1G is such a long way heh?
The standard is 1.5, that of all F-35 have been lowered
Mind telling us where you pull this from? your behind?
or you cannot comprehend the difference between Ultimate structure limit and sustain G limit at Mach 0.8 15k feet? seem like you should least learn the minimum so as not clutter the topic with terms you didn’t understand in the first place
where does it says F-35 performed post-stall maneuvers again?
Let me guess, you don’t know what is a pedal turn
Even pre-IOC,this jet has exceeded pilot expectations for dissimilar combat. (It is) G-limited now, but even with that, the pedal turns are incredible and deliver a constant 28 degrees/second
https://www.heritage.org/defense/rep…and-concurrent
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Why don’t you complain to L-M about the data they provided to the press then?
You call yourself someone who know his basic but you can’t even distinguish between ultimate structure limit and a sustain G limit at specific altitude and speed ?
This is one area where Rafale is hard to beat, but not everyone actually knows why, looking at the AoA hard Op limit is very deceptive for the reason I explained, US aircrafts are not AoA limited the way French A-C are, to the exception of F-16 which can get into a superstall passed the FCS-limited AoA, it is an aerodynamic limitation, not structural, but if you look at the raw numbers of demonstrated AoA during testing, none of them actually came anywhere close to 100*, not the TVC-X-31, not the F-18, none of them X or F whatever.
Put into this context, 70* AoA is not that impressive, I mean Saab Draken pulled Cobra maneuvers for decades, John Boyd was doing this in a F-100, what matters is the level of control the A-C retains once departed, post-stall manoeuvring requires control.[/SIZE][/FONT]
Gripen also demonstrated post-stall maneuvers, those characteristics are specific to close-coupled canards which are naturally resistant to stall, retain control and do not risk superstall, but they both are AoA limited for operational reasons, it is a choice, not an incapability.
Keep trolling
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https://aviationweek.com/defense/f-3…hter-maneuvers
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F-14 had been tested to around 90 degrees AoA
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F-15 also
Getting to high AoA and yaw departure, spin resistant tests are very common, most fighters must go through with that including Rafale and Gripen, but that doesn’t mean they suddenly have the same level of control over nose pointing at high AoA like a F-35 or Flanker with TVC.
When was the last time Gripen or Rafale did something like this:
or this
As for the issue of G limitation, there also the forum legends are hard to kill, to resume, if you believe the advocates of “they all can do it”, an A-C with no structural load margin will not break parts pulling as many Gs as Rafale, sorry but in the case of E-F the Ultimate Structural load is 10.8 G, meaning you’ll be popping rivets and breaking bits long before you reach this, at which point you will simply shred the A-C apart and I believe it is the same for the F-35 for the same reason.
At that time, Griffith had taken one of the initial F-35A test aircraft to 583 KCAS (exceeding Mach 1.2). Now, as the pace of testing continues to accelerate despite earlier delays caused by an inflight dual generator failure, and problems with the integrated power package (IPP), the jet has been flown to Mach
…………The aircraft has also been flown to 9.9g – which is 0.9g beyond the operational limits.
You can download the spreadsheet i made for above calculation here :
http://www.mediafire.com/file/cp58n9…ff+Jammer.xlsx
I made one for self protection. Download here: https://ufile.io/s72e3
5 Megawatt radar
10 Watt jammer
Target RCS: 0.01 m2
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^ i tried and get 7.5 km
No more aggressor F-15C?
Placing design, size and performance limitations on the weapon (by optimizing for tactical fighter carriage) when ample number of long range strike bombers are available and in the pipeline would have been quite stupid decision. There are other programs at or in the same TRL ballpark that will be more suitable for tactical fighter carriage so there is no pressure to field an AL BGV that is performance limited because of fighter carriage optimization.
Is there any hyper sonic weapon available for tactical fighter carriage?
Roper: Hypersonics Capability Less Than Two Years Away
I wish tactical aircraft can launch TBG but that seem unlikely
The thing is that. You will not know which missile have anti radiation warhead nor a warning unless they already launched.
Plus you should not confuse Anti radiation with HOJ. Though both are passive there are clear differences. Namely that the former is specifically designed to engage emitting target while the later is an operating mode using existing hardware.
You can easily see that Anti radiation missile seeker is designed with wideband antenna like spiral or conical and use interferometer method in extracting target angular position. while HOJ missile is basically your AMRAAM with HOJ mode.
and turning off radar is basically a loss of situational awareness. Your enemy may have mixed type of seeker, while the ARM one might be fooled, you might lost another IR or radar homer coming. This is why it’s preferable to have towed decoy or an expendable decoy in ARM situation
You are right that HOJ is not the same as anti radiation missiles but IMHO, they can be countered the same way. Turning off radar is only one of the option at close range, at such distance missiles can be tracked by other sensor such as DAS.
But i get your point,
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[USER=”71228″]garryA[/USER]
Let me remind my original point once more: attack against an unaware enemy is and has always been the focus of air forces because it has a huge influence in success chances. It has been done and continues to be done with or without VLO, since it depends on many other factors and not only RCS, because the kill chain needs the use of radioelectric spectrum to detect / identify target and links for guidance, as well as moments during the attack where VLO is not guaranteed. Conversely, it is difficult that an advanced adversary will be caught unaware by a missile coming out of the blue and will therefore take action to counter the attack.I am not discussing the whole range of tactics and means of aerial warfare nor denying the advantages of reduced RCS so I will not extend myself in the off-topic much further
Briefly to your points:
1. Weapons bay: true, it can be hidden from a given aspect but not to the IADS. In normal conditions at that moment the attacker would be at least detected by surveillance stations and the plane under attack could be informed.
2. Regarding ECCM: goal here is to fool the missile seeker at least during the end game, so burn-through distance not that relevant.
It is easier to make an attack that your enemy is unaware of when you fly in a stealth fighter, the sensor # shooter is the new trend,hence, while enemy can know someone is out there looking at them, that someone won’t be the one attacking them. There are moment during the attack where stealth fighter will have higher signature, but that does not guarantee detection.
1.Why only conventional fighter side get to have support from IADS? If we account for IADS for both side, the conventional fighter will be attacked by SAM from 300-400 km before they have the chance to engage stealth fighters.
2. Burn through distance is relevant because that the distance that a radar can negate your jamming and thus, they can launch missiles against you without worrying that their missiles will go find birds. Besides, if missiles negate your jamming at 12 km, they will be harder to dodge than if they negate your jamming at 270 meters
Of course, the smaller the RCS the better, On a side note, it does not help if we use RCS data about LO/VLO planes which are not realistic and only represent claims in laboratory conditions at a very specific aspect and frequency.
where did you find that fancy illustration of RCS (guesg it’s born in a basement?)
A metallic F-117 model (no RAM) was measured in Bremen anechoic chamber: as you can see above 2 Ghz then a value of -18 dBsm is feasible, next to it, are absorbing capability of some generic radar absorbing materials. Add them together, you can see that USAF claims are very plausible
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IMHO modern stealth fighter can be at least as good at F-117 which born decades earlier?
Interesting tidbit, P-18 detected F-117 at distance closer than 30 km, and F-117 only appeared once they switched to the lowest frequency setting.
Also anti-radiation heads exist, that can lock onto you radar emissions.
Allow me to answer this for of MLight too, anti-radiation seeker are not useful against fighters because:
1. They home on what is emitting so they can’t chase aircraft who run away or simple have their radar offline when missile reach terminal phase
2. Same as above, anti radiation head can be countered with terrain bounce jamming (shine your radar, jamming beam toward the ground surface and let the missile hit reflection lobe)
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or blinking jamming (2 assets alternatively switch their jamming beam on then off)
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1. A partner plane in safe position will guide the missile and perform IFF interrogation. True. But what about radar flare when weapons bays are opened and missile is launched? Wouldn’t this give away the position of the attacking plane?
2. ECCM exits… both sides. So as said, it is a matter of whose systems are better as a whole and how many weak spots each side has, not only about who is stealth and who is not. In any case, if a fighter gets to detect early the launch it can try to outrun the missile, destroy it, attack the guiding plane with a faster missile, jam the link or take a number of actions, fooling the seeker being only one of the options available. Kinematics matter here too, i.e. consider engagement envelope of a 4 M AMRAAM against an almost 3 M MiG-31 flying 5 km above a F-35 and then the opposite situation if a F-35 would need to evade a R-37M launched from a MiG-31. This is massively lopsided in favour of the faster plane with longer ranged missiles. Again, not the only factor but also an important one to be considered in the overall capability comparison
4. Between RWR and radar detection, the advantage is always for the RWR side, at least in terms of intercepted energy. We can theorize about LPI as much as we want but in the end this is physics and not magic. So a non-VLO plane could potentially detect the VLO one by detecting its radar emissions and pass the coordinates or go for a kill, even before it has been detected itself.
5. Going into a more complex scenario, now that you open the field: the defending side without VLO planes can keep them passive and relying on IADS data to get approximate positions of VLO assets in the area, launching LRAAM with active seekers that will be guided until being very close to the attackers, where its seeker can be used for the kill. That could degrade even further the advantage of VLO design to the point where it is not decisive at all.
Allow me to reply for dicross
1. Unless you are at lower altitude than the VLO plane, you can’t even look inside the opening weapon bay of adversary VLO fighter, trigonometry and all that, if your aircraft is at higher altitude, the view to the bay will be blocked by VLO fighter’s airframe, at the same altitude the radar flare is negligible because the bay door’s edge are designed to deflect radar wave in others direction rather than directly back. The weapon bay opening only for a few seconds, thus, even if you can launch missiles reacting to VLO plane, after a few seconds, your radar loses track and you can’t guide missiles to target.
2. ECCM exist on both side, but not to the same level of effectiveness, VLO airplane will always have a significant advantage
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Radar burn-through is massive lopsided in the favor of the plane with lower radar cross-section.
4. In terms of intercepted energy, it favors RWR over the radar, but in terms of available information, radars are far better because other than the direction of threats, they can also provide vital information such as distance to target, target velocity, heading, and radar are better overall for NCTR.
Besides, a fighter with its radar offline is effectively invisible to adversary RWR and radar information can be transferred through data link, so you know what this means:
If you have a squadron of 10 non-VLO plane versus a squadron of 10 VLO planes, the VLO squadron can know the location of all non-VLO planes, whereas the non-VLO squadron only know the location of 1-2 VLO fighters who are emitting
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Which figure ? The recent one i posted was mix. Only those having (R90) is 90%. Rest are taken from open source with no adjustment. Recently however i decided to cut down everything to 90% Detection probability to give a more “standardized” looks.
The one for J-31 i meant
Can’t really say. It’s eventually down to how much they spend on the cooling. Anyone having more excess cooling capacity will have better radar or more “headroom” to get better in the future.
I would say tho the current F-35 will have the processing and power aperture edge as it’s lot more mature and use state of the art module
I think F-35 should have better cooling since it carry more fuel and apparently have bigger cooling vents,
Is your figure with Pd = 90 or Pd = 50?