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

I don't see how this is technically possible without SAAB having provided their source codes to the Chinese thru the Paxtanis or vice versa. Both are impossibilities.

OTOH Chinese presence in the Paxtani war room & continuous satellite feed besides inputs from Beijing is a much more plausible scenario.
Apparently, Turkey had something to do with it.

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Apparently, Turkey had something to do with it.

View attachment 44734
From my extremely limited knowledge of electronics I'd say that in order for the integration to happen two OEMS - SAAB & Chengdu would have had to exchange source codes or pass them on to this Turkish firm undertaking the integration.

Who in your opinion would have shared their source codes with this Turkish firm or with PAF ? Chengdu or SAAB or both & if so what do you think were their motivations for doing so ?

The Link 16 is standard DTL used by NATO & ALLIED forces like Sweden . Do you think Sweden would countenance sharing of such information by SAAB much less the rest of NATO especially the US ?

OTOH from China's PoV Chengdu would have to share their source codes with Turkey a bonafide NATO member ? Do you think it's possible ?

The only way this could've happened is jury rigging the Link 17 which that *censored* site Quwa (whom most indians mistake for a genuine source given the retarded stuff each & every Paxtani analcyst indulges in which in turn makes someone slightly honest look credible forgetting that the bar itself is so damn low to begin with ) attested to being a Paxtani developed one if you can believe such a thing.

This still doesn't answer the question whether this has resulted in changing the entire communication suite of the Erieye for I don't see it working otherwise which in turn would render the LC guarantees if any issued by SAAB to PAF null & void.

Alternatively the Turkish firm shared the source code of this Link 17 with the Chinese. Then again how sophisticated this Link 17 itself is , would be another topic of discussion. And if that's the case it still means Link 16 is off bounds .

Even so , this jugaad ( for that's the only term I can think of to describe this arrangement ) must be extremely limited in its scope & thus performance.

Furthermore India still lacks access to the Link 16 if I'm not mistaken & we've signed all those pacts with the US like COMCASA , BECA etc for interoperability. Came across news earlier we were seeking some sort of via media between Vayu Link & Link 16 to ensure interoperability . No clue how far have things proceeded in that direction.
 
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From my extremely limited knowledge of electronics I'd say that in order for the integration to happen two OEMS - SAAB & Chengdu would have had to exchange source codes or pass them on to this Turkish firm undertaking the integration.

Who in your opinion would have shared their source codes with this Turkish firm or with PAF ? Chengdu or SAAB or both & if so what do you think were their motivations for doing so ?

The Link 16 is standard DTL used by NATO & ALLIED forces like Sweden . Do you think Sweden would countenance sharing of such information by SAAB much less the rest of NATO especially the US ?

OTOH from China's PoV Chengdu would have to share their source codes with Turkey a bonafide NATO member ? Do you think it's possible ?

The only way this could've happened is jury rigging the Link 17 which that *censored* site Quwa (whom most indians mistake for a genuine source given the retarded stuff each & every Paxtani analcyst indulges in which in turn makes someone slightly honest look credible forgetting that the bar itself is so damn low to begin with ) attested to being a Paxtani developed one if you can believe such a thing.

This still doesn't answer the question whether this has resulted in changing the entire communication suite of the Erieye for I don't see it working otherwise which in turn would render the LC guarantees if any issued by SAAB to PAF null & void.

Even so , what this jugaad for that's the only term I can think of to describe this arrangement must be extremely limited in its scope & thus performance.
This MilSoft DLP appears to be a middleware/gateway system that can translate dl msgs from one format/protocol to another. Eg: NATO to non-NATO. It is conceptually similar to software API where source code is not (always) required. It's plausible that SAAB would've given Turkey access to some Ereiye code as a fellow NATO member. No way to say for sure.
 
This MilSoft DLP appears to be a middleware/gateway system that can translate dl msgs from one format/protocol to another. Eg: NATO to non-NATO. It is conceptually similar to software API where source code is not (always) required. It's plausible that SAAB would've given Turkey access to some Ereiye code as a fellow NATO member. No way to say for sure.
Edited by previous post to include this 👇 which you may not have read .

Furthermore India still lacks access to the Link 16 if I'm not mistaken & we've signed all those pacts with the US like COMCASA , BECA etc for interoperability. Came across news earlier we were seeking some sort of via media between Vayu Link & Link 16 to ensure interoperability . No clue how far have things proceeded in that direction.
 
Su-57 in its present state is still not a pure 5th gen aircraft. It has an RCS closer to rafale and super hornet than the f-35 or even j-20 for that matter.
false, firstly whats a clean superhornet gonna do? perform a kamikaze attack? a clean configuration is irrelevant in the real world, when its equipped with weapons, its rcs values goes down the drain, also what makes you assume 4th gen fighters have close to the rcs of su 57? You do know russians invented the stealth doctroine americans hurried to copy on their jets? They just didnt wanna compromise on other features when making their jets. The americans like to use their ideal RCS values like RCS values are highly dynamic and the values they quote arent the reality in the battle field when the radars arent actually set in the ideal angle at the ideal plane, just look at the geometry of these aircrafts and its pretty clear than su57 was infact stealthy .Firstly it has an internal weapons bay bigger than american fighters which already make it on another league compared to their 4th gen, it is the flattest designed 5th gen with small vertical stablizers which is something even the 6th gen tempest is modeled after, it also has the best range which is another thing the 6th gen is modelled after, it can also act as command center with AI assistance which is also a 6th gen feature, it has the best designed airframe for a fighter jet currently which can do both air superiority and ground attack. Did I mention it having flat nozzle for better rear stealth and having much better thrust vectoring than american jets which will be crucial when entering contested air space against a real military power, it also has the best situational coverage and IR missile counter measures american jets dont have. Su57 was a design ahead of its time. Not to mention its airframe is already the best in the market right now and it can upgrade any such component for future 6th gen development. Let not forget that its bvr capabilities and current/future weapons are most likely better than american ones.
It's stealth is still subpar compared to other stealth jets, including j20.
false
 
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I dont believe I need to give out the values of their other performance parameters like speed, acceleration, manuverability of the felon vs fat amy. Not to mention its not outdated like f22. Read somewhere here that the rcs value of f22 is 95% dependent on its geometry beacause of its older aluminium/titanium frame unlike su57 which is 70% because of the use of RAM and RAS. Its also a true multi role aircraft unlike american 5th gen. There are other points also, not to mention the misinformation being spread by America because they wanna economically attack Russia and one of the easiest way is to parrot misinformation because most people arent experts on the topic unlike some on defence forums who could understand the difference.
It's stealth is still subpar compared to other stealth jets, including j20.
 
Let me also add that, Instead of having a wide, flat surface like the F-35 or even more so the F-22, The Su-57’s belly design leverages advanced radar cross-section (RCS) management through contouring and faceting that minimize specular radar reflections from ground-based emitters. Instead of a broad, uninterrupted flat underbelly—which acts like a radar “mirror” when illuminated from below—the Su-57 employs segmented, angled surfaces with varying inclinations. These surfaces deflect incident radar waves away from the emitter rather than back toward it, especially in X- and S-band frequencies commonly used by search and tracking radars. Combined with the integration of weapons bays into the fuselage and reduced protuberances, the belly’s shaping lowers the aircraft’s effective RCS in look-up and look-down scenarios. That means ground-based radars, AWACS, or missile guidance systems get a weaker “picture” of the jet, giving the pilot more time to get in, hit the target, and get out before being locked onto. This kind of shaping matters most when flying low, sneaking past defences, or dodging missiles in contested airspace. In short, it’s not just a design quirk—it’s a smart way to make the jet harder to spot and harder to kill when it really counts. I'll add some picture for reference, f35.jpgsu57.jpgf22.webpj20.webp
 
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Nope.
It's stealth is subpar compared to other stealth jets.
J20 and f35 also uses RAS materials like su57, unlike more metal construction of f22.
thats what people who have no idea about stealth like to parrot, fortunately the russian's who invented the tech know what they are doing.
 
thats what people who have no idea about stealth like to parrot, fortunately the russian's who invented the tech know what they are doing.

fortunately the russian's who invented the tech know what they are doing.
Now if we optimistically assume su57's RAS and RAM coating to be as effective as f35's RAS and RAM coating, even then su57's rcs will be 8-10 times higher than f35's.
That will mean increase in detection range of 1.68-1.78 times from an x band array.

If an f35 can be detected at let's say 30km by an x band array , then su57 will be detected at 50-55 km by the same array.


If you disagree with it, it would be better for you to provide more credible info in favour of your argument, then to just parrot mindless jargon to su57 being equal in stealth to f35.

Not to mention that naked irst of su57 which when working completely takes away its stealth.
 
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Now if we optimistically assume su57's RAS and RAM coating to be as effective as f35's RAS and RAM coating, even then su57's rcs will be 8-10 times higher than f35's.
That will mean increase in detection range of 1.68-1.78 times from an x band array.

If an f35 can be detected at let's say 30km by an x band array , then su57 will be detected at 50-55 km by the same array.


If you disagree with it, it would be better for you to provide more credible info in favour of your argument, then to just parrot mindless jargon to su57 being equal in stealth to f35.

Not to mention that naked irst of su57 which when working completely takes away its stealth.
SU 57 is a over hyped tin can period..........Even Russian airforce doesn't want it............ it's a white elephant with incurable design flaws that can’t be fixed without starting over again from design board....... AMCA will run circle around it if ADA & DRDO manage to deliver which i am sure they will.
 
Let me also add that, Instead of having a wide, flat surface like the F-35 or even more so the F-22, The Su-57’s belly design leverages advanced radar cross-section (RCS) management through contouring and faceting that minimize specular radar reflections from ground-based emitters. Instead of a broad, uninterrupted flat underbelly—which acts like a radar “mirror” when illuminated from below—the Su-57 employs segmented, angled surfaces with varying inclinations. These surfaces deflect incident radar waves away from the emitter rather than back toward it, especially in X- and S-band frequencies commonly used by search and tracking radars. Combined with the integration of weapons bays into the fuselage and reduced protuberances, the belly’s shaping lowers the aircraft’s effective RCS in look-up and look-down scenarios. That means ground-based radars, AWACS, or missile guidance systems get a weaker “picture” of the jet, giving the pilot more time to get in, hit the target, and get out before being locked onto. This kind of shaping matters most when flying low, sneaking past defences, or dodging missiles in contested airspace. In short, it’s not just a design quirk—it’s a smart way to make the jet harder to spot and harder to kill when it really counts. I'll add some picture for reference, View attachment 45870View attachment 45871View attachment 45869View attachment 45873
Lmao, everything said here is wrong.

One of the upgrades of megapolis program of su57 is modifications in its belly shape, the su57m will have a improved lower profile for lower rcs.
A wider and flatter fuselage than current su57.

And chinese are not retards to go with flat belly in not only their j20, but current j35 and future j50 and j36.

Turkish kaan design, UK-italy-japan design gcap design, our amca all feature flat belly.
And no flat belly is not worse for rcs, your stupid comment fails to take into account that grounf based radar will not be directly below the jet, the radar waves will not interact with flat belly at 90% angle.
 
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SU 57 is a over hyped tin can period..........Even Russian airforce doesn't want it............ it's a white elephant with incurable design flaws that can’t be fixed without starting over again from design board....... AMCA will run circle around it if ADA & DRDO manage to deliver which i am sure they will.
I wouldn't say overhyped, more like most shitted on jet on internet.


It does have its flaws, mostly being its stealth being not as good at other stealth jets.

But it has lots of good points, high maneuverability, supercruise, largest iwb, its sensor suite is the most exquisite out of all the stealth jets, with side and even back facing radar arrays, dircm, L band strips all things that other stealth jets don't have.
as for rest it has every sensor suite or planned that f35 has, its is the only jet outside f35 that has full helmet based display planned.


It is also a large twin engine design which gives it high future upgrade potential.
 
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false, firstly whats a clean superhornet gonna do? perform a kamikaze attack? a clean configuration is irrelevant in the real world, when its equipped with weapons, its rcs values goes down the drain, also what makes you assume 4th gen fighters have close to the rcs of su 57? You do know russians invented the stealth doctroine americans hurried to copy on their jets? They just didnt wanna compromise on other features when making their jets. The americans like to use their ideal RCS values like RCS values are highly dynamic and the values they quote arent the reality in the battle field when the radars arent actually set in the ideal angle at the ideal plane, just look at the geometry of these aircrafts and its pretty clear than su57 was infact stealthy .Firstly it has an internal weapons bay bigger than american fighters which already make it on another league compared to their 4th gen, it is the flattest designed 5th gen with small vertical stablizers which is something even the 6th gen tempest is modeled after, it also has the best range which is another thing the 6th gen is modelled after, it can also act as command center with AI assistance which is also a 6th gen feature, it has the best designed airframe for a fighter jet currently which can do both air superiority and ground attack. Did I mention it having flat nozzle for better rear stealth and having much better thrust vectoring than american jets which will be crucial when entering contested air space against a real military power, it also has the best situational coverage and IR missile counter measures american jets dont have. Su57 was a design ahead of its time. Not to mention its airframe is already the best in the market right now and it can upgrade any such component for future 6th gen development. Let not forget that its bvr capabilities and current/future weapons are most likely better than american ones.

false
All that design doesn't change the fact that it's RCS is lo not vlo.
Also GaN AEWCs won't care how small your RCS is. Modern Airwar is done through AEWCS. Not even f-22 can do anything if they are facing an AEWC with a GaN radar.
 
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Also GaN AEWCs won't care how small your RCS is. Modern Airwar is done through AEWCS. Not even f-22 can do anything if they are facing and AEWCS with a GaN radar.
Unlike ideal labs results.

In realistic case you can expect *optimistically* 15-20% increase in range using GaN over GaAs.
And some improvements in resolution due to better SNR.

But its not some magic pill that will render stealth ineffective.