PAK-FA / Sukhoi Su-57 - Updates and Discussions

This chronic symptom of getting weak-kneed the second you catch a glimpse of your 'American Daddy' can probably be managed by taking calcium supplements
What can others do if you equate everyone to be same, named yourself "hyperactive ADD" & also behaving like that with repeated cheap uncivilised language & off-topic stuff which adds only to user's image, doesn't affect others.


Radar detection follows this exact rule: for the same radar, the detection range and the target's RCS exhibit a 4th-root relationship.
RCS 100 = 400 km (Benchmark)
RCS 20 = 267.5 km
RCS 10 = 224.9 km
RCS 5 = 189.1 km
RCS 3 = 166.5 km
RCS 1 = 126.5 km
RCS 0.51 = 106.9 km
RCS 0.5 = 106.4 km
RCS 0.1 = 71.1 km
RCS 0.01 = 40.0 km
This means that for every 10-fold reduction in RCS, the actual reduction in radar detection range is a meager 44%.

Russian engineers have noted that an RCS below 1.0 can meet all beam requirements,
Therefore, designers recognize that an equivalent RCS of 0.5 represents the optimal, balanced sweet spot. Pushing for lower signatures beyond this threshold triggers a massive overflow of diminishing returns, severely compromising the aircraft's kinematic and kinematic performance.
Incidentally, the theory of low-RCS aircraft design was invented by the Russians.
Yet the Americans have taken this theory as gospel and gone to extremes with it; the most typical example of low‑RCS aerodynamic junk is the F‑117.
……From the Russian perspective, both the Su‑57 and the F‑22 lie in the optimal solution interval of 0.3 to 1.

Furthermore, shifting from 0.5 to 0.51 (by adding an external pylon) causes absolutely no qualitative change, and the same goes for four pylons. In reality, the primary purpose of an internal weapons bay is to reduce aerodynamic drag—a concept that originated with bombers and torpedo planes. The reduction in RCS was merely a happy accident.

> I guess you're using this formula -

1782025909602.png

So like i said that frequency/band also matters. And there're other variables of X'mit power, recieved power, Gain.

> I'm aware of Pyotr Yakovlevich Ufimtsev, a maths physicist who revolutionized electromagnetics and modern aviation through his pioneering work on the Physical Theory of Diffraction (PTD) and edge wave diffraction, and Americans noticed it & continued on it.

> You're continiously ignoring that stealth is not just physical size. Pushing RCS below 1m2, 0.1m2 also depends on RAS, RAM, EW, so it won't compromise kinematics. It's just that diferent nations' RAM, RAS, EW have different efficiency.
> West is trying to stall Russian R&D in every way, otherwise Russians could have achieved very low RCS too.

> NON-STEALTHY pylon RCS not 0.01 but 0.1 to 1 m2. NON-STEALTHY big AAM RCS 0.1m2 +/-. So a broad range of 1-5 m2.
 
What can others do if you equate everyone to be same, named yourself "hyperactive ADD" & also behaving like that with repeated cheap uncivilised language & off-topic stuff which adds only to user's image, doesn't affect others.




> I guess you're using this formula -

View attachment 52467

So like i said that frequency/band also matters. And there're other variables of X'mit power, recieved power, Gain.

> I'm aware of Pyotr Yakovlevich Ufimtsev, a maths physicist who revolutionized electromagnetics and modern aviation through his pioneering work on the Physical Theory of Diffraction (PTD) and edge wave diffraction, and Americans noticed it & continued on it.

> You're continiously ignoring that stealth is not just physical size. Pushing RCS below 1m2, 0.1m2 also depends on RAS, RAM, EW, so it won't compromise kinematics. It's just that diferent nations' RAM, RAS, EW have different efficiency.
> West is trying to stall Russian R&D in every way, otherwise Russians could have achieved very low RCS too.

> NON-STEALTHY pylon RCS not 0.01 but 0.1 to 1 m2. NON-STEALTHY big AAM RCS 0.1m2 +/-. So a broad range of 1-5 m2.
Your knowledge base is a tragedy. You’re just pulling stuff out of your *censored* and patching up your arguments with ad-hoc Google searches. Watching you secretly move the goalposts with those numbers is straight-up comedy.
So, in your world, the F-22 features some omnipotent multi-band radar that hops from X-band to visible light to L-band? What 'variables' are you even rambling about? Are you planning to scavenge the Su-57’s L-band arrays and bolt them on yourself?

Sorry,
but physical dimensions are an absolute reality. Gimmicks like geometric shaping or Just swapping out a few materials here and there, and pulling off some cheap tricks with specialized coatings.. to deceive radar have hard limits.
The 'RCS' everyone defaults to is just a basic equivalent baseline calibrated for X-band radars of that era.



At the end of the day, it's just an aircraft. We are talking about technology that was first put into practice forty years ago, and hardware that entered active service two or three decades back. It's not a Gundam, it's not some black tech from Cybertron, and it's certainly not magic

Put it under S-band or L-band, and physics takes over: bigger size equals bigger reflection. Period.
Your narrow perspective is just using a new lie to cover up the last one, exposing your pure ignorance.

I’m hilarious that a foot-spa worker from Zimbabwe has a firmer grip on science than you, a self-proclaimed 'IP engineer.'
Check your privilege.
All the garbage noise you fed me for two days evaporated into a joke the split second actual physics entered the chat. Fifteen years ago, understanding this was a middle-school entry requirement for any military board.

If you had even a shred of high school math education, you would know just how steep a quadratic curve is, and exactly where the coordinate X=1.0 sits in that system. To make it worse, this is actually a quartic function (a 4th-degree function), which means it’s exponentially steeper than a quadratic one. What kind of meaningful return do you honestly think you're getting once you drop below 1.0?

Now you claim a missile pylon has an RCS of 0.1 or 1 square meter? You're just making it up as you go.
Explain this to me: how does something with a frontal projection smaller than 0.1 square meters end up with an RCS larger than its physical size? Did the pylon magically turn into a Luneburg lens?

Take the KS-172, for instance. That missile is absolutely massive, right? Its diameter is 0.51 meters. Even if we completely ignore whatever advanced materials it uses and treat it as a literal solid steel rod, its frontal physical area is still well under 0.2 square meters.
Watching you pull these imaginary, cross-disciplinary theories out of thin air every single day is honestly enough to make anyone burst out laughing

Honestly, I only know the 26 letters of the alphabet, so whatever gibberish you're writing is completely beyond me.
 
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What kind of person in 40s wastes so much time, energy to write abusive paragraphs on foreign forums against anonymous people for no reason even when spoken to nicely?

Your knowledge base is a tragedy. You’re just pulling stuff out of your *censored* and patching up your arguments with ad-hoc Google searches.
5th time let me ask you - what should we use instead of Google?

Watching you secretly move the goalposts with those numbers is straight-up comedy.
What's secret here on casual chat forum? This is the real comedy.

hops from X-band to visible light to L-band?
This is your exaggerated addition. Real comedy.

Sorry,
but physical dimensions are an absolute reality. Gimmicks like geometric shaping or Just swapping out a few materials here and there, and pulling off some cheap tricks with specialized coatings.. to deceive radar have hard limits.
The 'RCS' everyone defaults to is just a basic equivalent baseline calibrated for X-band radars of that era.
Same "Gimmicks" used by Russia, China & others too. 🤷‍♂️
While it's true that it's very difficult to calibrate a jet's body for every band, that could be physical limit, but the geometry, RAS, RAM, EW, RF blocker, etc try to address as many bands as possible, bcoz different bands are used by AAMs, SAMs, Fighters, AWACS, etc.





At the end of the day, it's just an aircraft. We are talking about technology that was first put into practice forty years ago, and hardware that entered active service two or three decades back. It's not a Gundam, it's not some black tech from Cybertron, and it's certainly not magic

Put it under S-band or L-band, and physics takes over: bigger size equals bigger reflection. Period.
Your narrow perspective is just using a new lie to cover up the last one, exposing your pure ignorance.

I’m hilarious that a foot-spa worker from Zimbabwe has a firmer grip on science than you, a self-proclaimed 'IP engineer.'
Check your privilege.
All the garbage noise you fed me for two days evaporated into a joke the split second actual physics entered the chat. Fifteen years ago, understanding this was a middle-school entry requirement for any military board.

If you had even a shred of high school math education, you would know just how steep a quadratic curve is, and exactly where the coordinate X=1.0 sits in that system. To make it worse, this is actually a quartic function (a 4th-degree function), which means it’s exponentially steeper than a quadratic one. What kind of meaningful return do you honestly think you're getting once you drop below 1.0?

🤬🤬🤬🤬🤬🤬🤬🤬🤦‍♂️🤦‍♂️
:LOL:
- You're treating 0.0001 m2 RCS as Magic, Gundam, Cybertron tech.:ROFLMAO:

- Well, it's not hilarious but pity that a person with firm grip on science ended up as foot-spa worker in Zimbabwe or anywhere, hence venting his anger & frustration on random anonymous people for no reason even when spoken to nicely.
- Unfortunately we all have to be anonymous otherwise ADHD guys would attack personal & professional profile,perhaps of family members too.


Now you claim a missile pylon has an RCS of 0.1 or 1 square meter? You're just making it up as you go.
Explain this to me: how does something with a frontal projection smaller than 0.1 square meters end up with an RCS larger than its physical size? Did the pylon magically turn into a Luneburg lens?
- Physical area & measured RCS can be different depending upon wavelength/band.
- I could be wrong but i'm trying my best. You can't expect non-aero people to start giving Phd level stuff or join aero-university for casula chat.
- I can also say that you're claiming based on your non-google sources like that Chinese article screenshot on Su-33UB & you don't tell what sites we should use.

- The usage of Luneburg lens itself proves how critical all stealth aspects are. Every nation can't create best RAM, RAS, EW.
- Unstealthy Pylons have bent/curved surfaces, discontinuities, gaps, bumps, which amplify the RCS & different bands give different #.
- RF reflection, diffraction & scattering are of multiple types.
- When the size of the object is much larger than the radar's wavelength, maximum backscattering RCS = 4.pi.Area^2/wavelength^2
If area =1 m2, because the physical area A is squared in the numerator, any wavelength shorter than sqrt(4.pi) = 3.54m will result in an RCS greater than 1 m2.
X band wavelength 2.5-3.75 cms, Ku band 1.6-2.5 cms, C band 5-7.5 cms, the pylon is certainly bigger & its not just flat but bent, curved, bumped, amplifying the RCS.

Watching you pull these imaginary, cross-disciplinary theories out of thin air every single day is honestly enough to make anyone burst out laughing
Honestly, I only know the 26 letters of the alphabet, so whatever gibberish you're writing is completely beyond me.
These theories are pulled out of internet search. That's all non-aero members can do. Unfortunately you're not disciplined in any way, hence these things go beyond you, hence you can't do proactive search & you burst into laughing.

You can ignore everything here, but all the makers are paying attention to all aspects of stealth which you call gimmick, trash, cheap tricks, lies, fantasies, magic, Gundam, Cybertron tech.🤦‍♂️:ROFLMAO:
If you're Chinese then still you call Chinese jets trash.
If you're from Zimbabwe then obviously it doesn't matter to you. Then why wasting time & energy on Indian forum & actually not giving any data?🤦‍♂️o_O
 
Same "Gimmicks" used by Russia, China & others too. 🤷‍♂️
While it's true that it's very difficult to calibrate a jet's body for every band, that could be physical limit, but the geometry, RAS, RAM, EW, RF blocker, etc try to address as many bands as possible, bcoz different bands are used by AAMs, SAMs, Fighters, AWACS, etc.

Diagrams got vanished in previous post

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f-35-inlet-again-medium-wavelength.png



f-35-inlet-again-x-band.png
 

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What kind of person in 40s wastes so much time, energy to write abusive paragraphs on foreign forums against anonymous people for no reason even when spoken to nicely?
Go look in the mirror; that should answer all your questions.

Same "Gimmicks" used by Russia, China & others too. 🤷‍♂️
While it's true that it's very difficult to calibrate a jet's body for every band, that could be physical limit, but the geometry, RAS, RAM, EW, RF blocker, etc try to address as many bands as possible, bcoz different bands are used by AAMs, SAMs, Fighters, AWACS, etc.

Didn’t I ask you this exact question earlier? The RCS of an F-4 is massively larger than that of a MiG-21, and the F-15’s is far bigger than a MiG-29’s. Yet back then, none of you were obsessing over whether an RCS was 'large or small,' despite these blatantly obvious gaps.
But now, when it comes to the F-22 versus the Su-57—where we have to rely strictly on professional intelligence agencies for standardized assessments
…but somebody even claimed with absolute certainty that he could, through his so-called "***-eye darkroom," measure exactly which parts of the Su-57 are inferior to the F-22 and by how much.
—suddenly you start hyper-focusing on this metric again?
See? You still can't answer me.
🤬🤬🤬🤬🤬🤬🤬🤬🤦‍♂️🤦‍♂️
:LOL:
- You're treating 0.0001 m2 RCS as Magic, Gundam, Cybertron tech.:ROFLMAO:

A jet with an RCS of 0.00 followed by whatever number of zeros might not be magic, but the mythical 'S-150 missile' that’s supposed to shoot it down definitely is.
- Well, it's not hilarious but pity that a person with firm grip on science ended up as foot-spa worker in Zimbabwe or anywhere, hence venting his anger & frustration on random anonymous people for no reason even when spoken to nicely.
- Unfortunately we all have to be anonymous otherwise ADHD guys would attack personal & professional profile,perhaps of family members too.

Every single time you realize that a foot-spa worker in Zimbabwe understands these basic principles while you, a self-proclaimed 40-year-old IT professional, are utterly helpless, you lose sleep over it. You keep trying to invent a new lie to cover up the embarrassment of your previous one, only to be violently slammed back onto the ground.
From your inability to distinguish between an L-band communication antenna and an L-band radar array, to your bizarre math of 'stealth jet + stealth missile = non-stealthy jet carrying a missile,' to the painful revelation that you are completely clueless about the relationship between RCS and actual radar detection range—your rhetoric has brought you zero returns. It has done nothing but pour salt on your own open wounds.


One must learn to make peace with oneself and accept one's own mediocrity. Whenever you hit a seemingly insurmountable wall in life, just remind yourself that you got thoroughly defeated today by a Zimbabwean foot-spa worker—and suddenly, nothing else seems like a big deal. You can even write it on a sticky note and paste it right by your headboard.
It’s really not that big of a crisis; after all, nobody cares. Think about Donald Trump trying to sign the Treaty of Versailles—hundreds of millions of people worldwide watched it as a total stand-up comedy routine. Or look at how devastated the Americans were when their F-117 and F-35 got shot down. Compared to that, your little minor setback is absolutely nothing.
What's secret here on casual chat forum? This is the real comedy.

And yeah, absolutely, Over 80% of actual intelligence agency data comes from open-source intelligence (OSINT) collection, not James Bond.

networks vs networks
human vs human
I got all of this from online searches. How come you couldn't find it?

Which of these two factors actually failed here? Or could it be that both of them went completely off the rails?
Whether it's the Su-33UB, the Su-35S, or the Su-57—even simple foot-spa workers from Tanzania like us can instantly pull up the exact images and model specs online. Yet somehow, a self-proclaimed 'IT engineer' like you is completely incapable of doing so. It truly makes one wonder about your actual professional competence
 
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