Russia Defence Forum

Would you like to react to this message? Create an account in a few clicks or log in to continue.

Military Forum for Russian and Global Defence Issues


    Su-57 Stealth Fighter: News #7

    magnumcromagnon
    magnumcromagnon

    Posts : 7326
    Points : 7475
    Join date : 2013-12-05
    Location : Pindos ave., Pindosville, Pindosylvania, Pindostan

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  magnumcromagnon Sun Apr 11, 2021 5:51 am

    Backman wrote:
    bren_tann wrote:
    Atmosphere wrote:This is the final blow towards the "round IRST bad" rethoric
    Su-57 Stealth Fighter: News #7 - Page 18 Eygp_q10
    [url=https://servimg.com/view/20305403/6][img]https://i.servimg.com/u/f63/20/30/54/03]

    AFAIK KF-X doesn't have internal weapons bays, so its RCS reduction is minimal.

    It has them. They just aren't operational due to regulations with the GE engines. They will make them work later apparently

    But will it follow with sanctions? Uncle Sham is actually contemplating the unthinkable...sanctioning it's vassals allies. Mary Antoinette said "Let them eat cake!", the modern day equivalent would be like "Let vassals have Vaseline!"

    UZB-76 and Backman like this post

    LMFS
    LMFS

    Posts : 3480
    Points : 3482
    Join date : 2018-03-03

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  LMFS Sun Apr 11, 2021 6:28 am

    UZB-76 wrote:Is this the serial production aircraft?

    Yes, see the number 01 on the fuselage

    UZB-76 likes this post

    Backman
    Backman

    Posts : 680
    Points : 688
    Join date : 2020-11-11

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Backman Sun Apr 11, 2021 6:44 am

    (this chatter should have happened in the S.Korea thread. The aircraft deserves a thread at this point)

    Anyway I Googled around just for fun to see if I could find the exact restrictions for why it cant have internal weapons. Basically every single part of an aircraft is subject to regulations.

    All I could come up with is this weird lingo about some amendment. Low observable blades ? Whats that about..

    DEPARTMENT OF STATE 22 CFR Part 121 [Public Notice 6316] RIN 1400–AC47 Amendment to the International Traffic in Arms Regulations: The United States Munitions List Category VI

    Four (4) commenting parties recommended the ninth sentence of the explanatory note delete ‘‘radomes’’ and ‘‘low observable blades’’ and add ‘‘rotodomes’’ and ‘‘bomb bay doors.’’The Department accepted the substitution of rotodomes for radomes
    TMA1
    TMA1

    Posts : 133
    Points : 135
    Join date : 2020-11-30

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  TMA1 Sun Apr 11, 2021 6:58 am

    What is a rotodome??
    Atmosphere
    Atmosphere

    Posts : 45
    Points : 47
    Join date : 2021-01-31

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Atmosphere Sun Apr 11, 2021 7:36 am

    In any case. That IRST is highly similar looking in both shape and color of coating to the KS-V.

    But one thing always perplexed me. Why is the su-57 always bashed for having a round IRST , while the F-35 is regarded as very stealthy with that enormous gun cylinder over it. Which not only looks like the round IRST from the front , but also extends to a very big portion afterwards.Su-57 Stealth Fighter: News #7 - Page 18 Images11
    Su-57 Stealth Fighter: News #7 - Page 18 Images10

    Backman likes this post

    magnumcromagnon
    magnumcromagnon

    Posts : 7326
    Points : 7475
    Join date : 2013-12-05
    Location : Pindos ave., Pindosville, Pindosylvania, Pindostan

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  magnumcromagnon Sun Apr 11, 2021 4:03 pm

    Atmosphere wrote:In any case. That IRST is highly similar looking in both shape and color of coating to the KS-V.

    But one thing always perplexed me. Why is the su-57 always bashed for having a round IRST , while the F-35 is regarded as very stealthy with that enormous gun cylinder over it. Which not only looks like the round IRST from the front , but also extends to a very big portion afterwards.Su-57 Stealth Fighter: News #7 - Page 18 Images11
    Su-57 Stealth Fighter: News #7 - Page 18 Images10


    What's more embarrassing is all the visible RAM tape applied on the F-35's.
    Backman
    Backman

    Posts : 680
    Points : 688
    Join date : 2020-11-11

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Backman Sun Apr 11, 2021 7:32 pm

    @Atmosphere

    Like this ? Good point. Its because everyone isn't arrogant and deluded enough to think that Lockheed built stealth defeating defects into the design. But they are deluded enough to think that Sukhoi would build stealth defeating defects into their design. The Russia side is too busy debunking these child like claims against the su 57 that they dont have time to make up child like claims against the F-35 or F-22.

    while the F-35 is regarded as very stealthy

    It isn't regarded as very stealthy in any analytical sense. Its made by the USA. So its the greatest. Period. Nobody has gone over the design with a fine tooth comb.

    The front of this elongated cylinder on the F-35 is just as round as the IRST on the su 57. Or the IRST on the KF-21. Why didnt Lockheed build one of those funky trapezoidal things at the front of it. Probably for the same reason Sukhoi didn't. It wasn't necessary.

    Su-57 Stealth Fighter: News #7 - Page 18 Dehkv3i-8f95d2ef-c3e3-4044-bda0-35cb53d2c9ab.jpg?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJ1cm46YXBwOiIsImlzcyI6InVybjphcHA6Iiwib2JqIjpbW3sicGF0aCI6IlwvZlwvNjczMmY2M2YtZDU0Zi00Nzg5LWI0ZWEtZGU0ZTIxMzMyZDk2XC9kZWhrdjNpLThmOTVkMmVmLWMzZTMtNDA0NC1iZGEwLTM1Y2I1M2QyYzlhYi5qcGcifV1dLCJhdWQiOlsidXJuOnNlcnZpY2U6ZmlsZS5kb3dubG9hZCJdfQ

    Gomig-21 and Hole like this post

    Atmosphere
    Atmosphere

    Posts : 45
    Points : 47
    Join date : 2021-01-31

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Atmosphere Sun Apr 11, 2021 10:21 pm

    the very principle of assuming that someone will see with his bare eyes what tens of engineers that had studied the subject for at least five years to get their diploma is infact nothing short of delusion.

    Some people try to patch it up and say "ok we are not claiming they dont know how to build stealth airplanes but the ministry of defense simply didnt need something as stealthy as F-22/35" , but that is completely baseless and unfounded. It is merely an assumption.


    Last edited by Atmosphere on Mon Apr 12, 2021 12:59 am; edited 1 time in total

    kvs, LMFS and Finty like this post

    Finty
    Finty

    Posts : 118
    Points : 120
    Join date : 2021-02-10
    Location : Great Britain

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Finty Sun Apr 11, 2021 10:49 pm

    magnumcromagnon wrote:
    Atmosphere wrote:In any case. That IRST is highly similar looking in both shape and color of coating to the KS-V.

    But one thing always perplexed me. Why is the su-57 always bashed for having a round IRST , while the F-35 is regarded as very stealthy with that enormous gun cylinder over it. Which not only looks like the round IRST from the front , but also extends to a very big portion afterwards.Su-57 Stealth Fighter: News #7 - Page 18 Images11
    Su-57 Stealth Fighter: News #7 - Page 18 Images10


    What's more embarrassing is all the visible RAM tape applied on the F-35's.

    Only on earlier builds. If you look into it you’ll see that the painting process has improved and those lines are no longer visible.
    avatar
    limb

    Posts : 176
    Points : 184
    Join date : 2020-09-17

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  limb Tue Apr 13, 2021 10:59 am

    How do you debunk the claim that the Su-57's wing mounted L band radars are only there for IFF? I constantly keep hearing claims that for an LDAR radar to be able to detect targets at meaningful ranges, it must have a very large antenna, and theese arguments cite the nebo as having a much larger antenna than similar xband ground based radars as proof of this. However the IFF claim doesnt make sense since IFF technology hasnt changed much and it would be a waste to put 2 entire Lband radars on just for IFF. I hear yet other claims that the wing mounted Lband radars to be for IFF, ground search as well as datalink disruption, but not detection of stealth targets.

    So is it true that its possible for an Lband radar on the Su-57 to be supplied with enough power and have the size to detect detect stealth fighters at 300-400km? I'm guessing the physics of it are classified, but western electric engineers are basically claiming is physicially impossible.
    LMFS
    LMFS

    Posts : 3480
    Points : 3482
    Join date : 2018-03-03

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  LMFS Tue Apr 13, 2021 12:11 pm

    limb wrote:How do you debunk the claim that the Su-57's wing mounted L band radars are only there for IFF? I constantly keep hearing claims that for an LDAR radar to be able to detect targets at meaningful ranges, it must have a very large antenna, and theese arguments cite the nebo as having a much larger antenna than similar xband ground based radars as proof of this. However the IFF claim doesnt make sense since IFF technology hasnt changed much and it would be a waste to put 2 entire Lband radars on just for IFF. I hear yet other claims that the wing mounted Lband radars to be for IFF, ground search as well as datalink disruption, but not detection of stealth targets.

    So is it true that its possible for an Lband radar on the Su-57 to be supplied with enough power and have the size to detect detect stealth fighters at 300-400km? I'm guessing the physics of it are classified, but western electric engineers are basically claiming is physicially impossible.

    Stealthflanker did a range calculation for the L band radars on the Su-57 vs fighter target and it was >100 km IIRC. Vertical discrimination is non existent, count of modules is small indeed, but they can be rather powerful due to their size. The use as radar seemed to have viability, though I doubt it is the only use of those arrays.
    Atmosphere
    Atmosphere

    Posts : 45
    Points : 47
    Join date : 2021-01-31

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Atmosphere Tue Apr 13, 2021 5:47 pm

    You see this is a principal *flaw* of thinking that comes around whenever the Su-57 topic is brought up.

    The L-band radars "are only for IFF" , is not backed by a shred of proof , not a source , not an interview , nothing. It merely is some theory made by people on the internet.
    And the reason is obvious. The fact that an airplane has an integrated multi band radar that sees stealth is hard to swallow and hurt the feelings of those who are zealous about this plane having a bad avionics set.

    And yet,

    It seems to be a claim that needs to be debunked , like ,this mere proofless theory already has been "validated" by the internet.
    In a sense that now any one can claim anything he/she wants about the plane and it becomes valid and the su-57 is placed on the defensive regardless of the fact that no legit proof is given aside from hindsight.

    Like the T-14. It has been repeatedly stated that the radars can be used for recon and battle managment. People didnt want to swallow it. So they ignored it and claimed it to only be for APS.

    These claims should not even be considered to begin with. Because they are not based on proof. They are based on vague , gritty guesswork.

    *PS: There are countless official sources that confirm the L-band arrays to be radars. This invalidates every theory going against that. Including guesswork about array size. Its not like basics of basics are out of the grasp of the people that spent 8 years fine tuning the radar*

    magnumcromagnon, kvs, miketheterrible, Hole and Backman like this post

    Backman
    Backman

    Posts : 680
    Points : 688
    Join date : 2020-11-11

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Backman Tue Apr 13, 2021 6:00 pm

    @Limb
    Where are you hearing this nonsense ? Just curious. Key Pub forum is basically dead. Are you on F-16.net ?
    avatar
    limb

    Posts : 176
    Points : 184
    Join date : 2020-09-17

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  limb Tue Apr 13, 2021 8:55 pm

    Backman wrote:@Limb
    Where are you hearing this nonsense ? Just curious. Key Pub forum is basically dead. Are you on F-16.net ?
    I read it on keypublishing from actionjackson, garryA, and some others I think, and a user called knownspecific1 on r/warcollege.

    There was an HM1199  video where he described the Lband radars to be mainly fir data link disruption and IFF, but not detection.

    The thing is for someone not educated in graduate level electrical engineering, the argument  that the Su-57's Lband radar cannot have range and power near the nebo Lband,  which has a many times larger power supply and size, is hard to counter.


    Last edited by limb on Tue Apr 13, 2021 11:05 pm; edited 1 time in total

    Backman likes this post

    miketheterrible
    miketheterrible

    Posts : 5765
    Points : 5739
    Join date : 2016-11-06

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  miketheterrible Tue Apr 13, 2021 10:51 pm

    It all depends on how many elements there are in the wing tip modules. The engine and APU provide enough power to power the 20KW radar N036 and possibly enough for upwards to 1KW or more for the side mounted modules.

    The thing is, what we saw was for Su-35. Not for 57. And the wing modules are from as far back as 2007. Russia has made great strides in both GaAS and GaN modules (Russia's newest ships use GaN AESA from what TR1 posted back on keypub a few years ago). If they somehow incorporated that onto Jets (dunno, would have to reduce size of modules and have a cooling solution for it), they could have increased power output without needing as many modules.

    But all is speculation cause we got nothing else to go off of
    Backman
    Backman

    Posts : 680
    Points : 688
    Join date : 2020-11-11

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Backman Tue Apr 13, 2021 10:59 pm

    limb wrote:
    Backman wrote:@Limb
    Where are you hearing this nonsense ? Just curious. Key Pub forum is basically dead. Are you on F-16.net ?
    I read it on keypublishing from actionjackson, garryA, and some others I think, and a user called known specifically on r/warcollege.

    There was an HM1199  video where he described the Lband radars to be mainly fir data link disruption and IFF, but not detection.

    The thing is for someone not educated in graduate level electrical engineering, the argument  that the Su-57's Lband radar cannot have range and power near the nebo Lband,  which has a many times larger power supply and size, is hard to counter.

    That's no surprise.

    Actionjackson has the worst case of su 57 derangement syndrome of anyone. His existence is dedicated to bashing the su 57. He spews nothing but sophistry. This is the guy who says that the Iranian fake cardboard 5th gen fighter is better than the su 57.

    Big_Gazza, x_54_u43, miketheterrible and LMFS like this post

    Atmosphere
    Atmosphere

    Posts : 45
    Points : 47
    Join date : 2021-01-31

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Atmosphere Tue Apr 13, 2021 11:32 pm

    Regarding forums i dont know very much about them since im not too involved , but i advice you to never get info on russian airplanes from english speaking sources. Or at least to take them with truckloads of salt.

    So far every little theory that has been bred over various forums and articles has been smacked across the wall.

    They claimed that it had no sensor fusion but it was clear afterwards that it had. And had very fast data buses
    They claimed that the AESA tech was decades behind yet they have quickly made modules based on very modern LTCC architecture, similar to what the west had , with at least similar gain and noise figures.
    They claimed that it must have used western computers but it was confirmed that it was using elbrus chips
    They claimed that it was cancelled but it did infact enter service.
    They claimed that the technology involved in building it was decades behind but it was shown that they were literally using VR.
    They claimed that the R-77M was glass and mirrors "fantasy" missile yet now it can be seen flying with it.

    See a pattern?

    As for Youtube then there are only Su-35 and Kornet videos on HM1199 so i don't know. Still those videos are a magnitude higher in quality than the mish mash you find on some forums

    Big_Gazza, thegopnik, Hole, lancelot and Backman like this post

    LMFS
    LMFS

    Posts : 3480
    Points : 3482
    Join date : 2018-03-03

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  LMFS Wed Apr 14, 2021 12:00 am

    Su-57 Stealth Fighter: News #7 - Page 18 282882

    magnumcromagnon, PapaDragon, DerWolf, Gomig-21, littlerabbit, lancelot and Atmosphere like this post

    Atmosphere
    Atmosphere

    Posts : 45
    Points : 47
    Join date : 2021-01-31

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Atmosphere Wed Apr 14, 2021 12:43 am

    Su-57 Stealth Fighter: News #7 - Page 18 5810

    Stolen from 🅱aralay

    George1, Big_Gazza, PapaDragon, Maximmmm, Gomig-21, LMFS, lancelot and Backman like this post

    thegopnik
    thegopnik

    Posts : 411
    Points : 417
    Join date : 2017-09-20

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  thegopnik Wed Apr 14, 2021 1:18 am

    limb wrote:
    Backman wrote:@Limb
    Where are you hearing this nonsense ? Just curious. Key Pub forum is basically dead. Are you on F-16.net ?
    I read it on keypublishing from actionjackson, garryA, and some others I think, and a user called knownspecific1 on r/warcollege.

    There was an HM1199  video where he described the Lband radars to be mainly fir data link disruption and IFF, but not detection.

    The thing is for someone not educated in graduate level electrical engineering, the argument  that the Su-57's Lband radar cannot have range and power near the nebo Lband,  which has a many times larger power supply and size, is hard to counter.

    garryA and mig-31bm at key aero/Ronny both secretprojects and space battle forum(war room)/stealthflanker at India defense forum/eloise at F-16.net is a Vietnamese user that has an axe to grind with Russia. Statistically Vietnam is the most Pro-American country https://qr.ae/pG1YtG Vietnam in 1978 signed an alliance pact with the USSR to contain China. There is a reason China invaded Vietnam in 1979 and not 1977. The fact Russia didn’t open a second front at China’s Northern Borders showed the world that the 1978 Vietnam-Soviet pact was in fact worthless.

    ActionJackson background I do not much about other than shitting on Russia's stealth and radar technology at key aero. But I sort of managed to get him to shut up when I brought up photonics being an option later. Even if they were not getting PICs a up to date MMIC would do the Su-57 good anyways. While F-35s can afford avionics upgrade since it has to continue with the rest of the block upgrades along with fixing deficiencies. The above users you mentioned I would not recommend as reference points for anything Russian military equipment related.
    Backman
    Backman

    Posts : 680
    Points : 688
    Join date : 2020-11-11

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Backman Wed Apr 14, 2021 1:24 am

    Atmosphere said
    never get info on russian airplanes from english speaking sources

    This.

    Even official news outlets were peddling libelous untrue garbage. The su 57 has to be the first piece of military equipment ever, that was said to be cancelled , in the same year that it was going into production. Sukhoi really should file some lawsuits.

    It all happened at the same time. The whole English language defense media was suddenly loaded with headlines saying "su 57 abandoned" " su 57 failed" blah blah blah. YouTube too. It was just unreal.

    Russia’s ‘stealth-killer’ fighter project has been abandoned

    https://www.news.com.au/technology/innovation/military/russias-stealthkiller-fighter-project-has-been-abandoned/news-story/03e50ea76d6a5dfb5aaac69b9c75fbd6

    Big_Gazza, Gomig-21 and lancelot like this post

    LMFS
    LMFS

    Posts : 3480
    Points : 3482
    Join date : 2018-03-03

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  LMFS Wed Apr 14, 2021 3:52 am

    Backman wrote:Even official news outlets were peddling libelous untrue garbage. The su 57 has to be the first piece of military equipment ever, that was said to be cancelled , in the same year that it was going into production. Sukhoi really should file some lawsuits.

    It all happened at the same time. The whole English language defense media was suddenly loaded with headlines saying  "su 57 abandoned" " su 57 failed" blah blah blah. YouTube too. It was just unreal.

    Russia’s ‘stealth-killer’ fighter project has been abandoned

    In retrospective, it was good for them to ridicule themselves so mercilessly, and we are allowed to remind them the clowns they are for at least as long as they have been slandering the plane... it is going to be sweet for the next twenty years Laughing

    magnumcromagnon and Backman like this post

    Backman
    Backman

    Posts : 680
    Points : 688
    Join date : 2020-11-11

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Backman Wed Apr 14, 2021 4:19 am

    From Paralay


    Su-57 Stealth Fighter: News #7 - Page 18 8b33a57593e3

    magnumcromagnon, Gomig-21 and LMFS like this post

    GarryB
    GarryB

    Posts : 29034
    Points : 29562
    Join date : 2010-03-30
    Location : New Zealand

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  GarryB Wed Apr 14, 2021 8:46 am

    The information I have read comes mostly from Piotr Butowski, and he says something along the lines of the L band radar being able to scan and detect the presence of stealth targets, but not being able to track them like a normal radar, as a consequence of the shape of the radar array and the frequency...

    But your mentioning the NEBO ground based system is interesting... most western experts think it is simply three different radar operating in three different frequencies that operate together.

    It is more than that, they are actually linked and their results are combined using computers to get more information than the radars supply.

    Think of it in terms of light... an enemy sniper will wear all sorts of light and shape based camouflage to conceal his presence... that is like radar stealth and is intended to defeat a human beings primary detection system... our eye balls.

    Our eye balls are still very capable and useful, but that capability is not reliable at night and in bad weather and with snipers in gillie suits in suitable foliage.

    What NEBO does... and also what the Su-57 does, is use a range of sensors to make the job of the sniper harder.

    In optical terms it is like adding ground radar and thermal imaging equipment to the magnified optics... so anything that moves will draw other sensitive sensors to look there. Most snipers have IR defensive materials but they are not perfect and glimpses of heat will still be visible if you are zoomed in and looking at them... the same with a radar.

    What might give the sniper away is a radar return on a rifle barrel, or an IR glow from a gap in his gear as he creeps along or perhaps a thermal imager in a UAV that he didn't see and wasn't hiding from, or it might have just been him moving that attracts the attention of the system.

    The point is that to detect an enemy aircraft the Ku and Ka bands are the most accurate, so the Su-57 has those in its nose facing forward and sideways, so think of them as massively zoomed in optics.... they can detect stealth targets but having to scan the entire sky means broad casting your position and perhaps allowing them to remain outside the distance you can easily detect them.

    The thing is that the Su-57 also has IRST which detects targets in a different way and there are long, medium, and short wave IR imagers that can also be used to detect objects with heat sources like any stealth fighter ever made... it works in different frequencies that render radar stealth meaningless, and combined with radar can be very effective at finding all sorts of things without having to broadcast enormous amounts of radar energy.

    And we have the wing root mounted L band radars... which are radar but operate in a much different radio wave than the Ku and Ka band sensors... a bit like a thermal imager being used when the normal Ku and Ka are not effective.

    Think of it as Ku and Ka band radar as being visible light. You could try to see in UV frequencies but aircraft don't give off UV light naturally so you would need powerful UV lights for that to make a difference. L band is a much different range of radar frequencies like IR is, so stealth to Ku and Ka, is like darkness to visible light. L band is a thermal imager... and ironically it could be used to point the IRST and nose mounted AESA radars directly at the target with precision making detection much faster and less obvious and easier. Instead of sweeping the entire sky with 20Kwts of power, they can point the radar element directly at where the stealth object is and use maybe 5Kwts of power instead and still get a lock.

    Lband is not effected by RAM coatings and aircraft shaping because L band is too long a wavelength to be absorbed by coatings less than a few cms thick and L band can't see the shape of an aircraft anyway... the entire aircraft reflects the wave... its shape does not redirect it away from the antenna.

    The point is that by linking the L band and Ku band and Ka band and IR and visible light optical IRST (which includes an IR location sensor, and a couple of imagers (most likely long, medium, and short wave IR... LWIR, MWIR, and SWIR sensors, and also a LLLTV digital video system) I would think the processing power should make all sorts of detection and tracking of targets automatic and rather easier than on any other Russian fighter.

    Personally I think the western ignorance about the Su-57 is excellent.... the alternative would be respect and then fear and then mobilisation to try to make the F-35 and Tempest better to counter the threat.

    Having them complacent and wrong is a good thing.

    In the early 1990s the west thought it was invincible... it had just trashed the most powerful country in the world... so they said... Iraq...

    You would think experience in training against the MiG-29 would have shut them up... but no.

    It helps them sleep at night I suppose.

    Gomig-21, thegopnik and UZB-76 like this post

    thegopnik
    thegopnik

    Posts : 411
    Points : 417
    Join date : 2017-09-20

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  thegopnik Wed Apr 14, 2021 8:18 pm

    The 3 things I want is.

    1. photonic radar 360 degree coverage. Raytheon and DARPA have still yet to talk about a working photonic radar other than exploring the field of PICs. This will give this forum shitposting rights to claim they are ahead in radar technology and to get vengeance at the Russia does not have operational AESA on aircraft yet claim when they got something better.

    2.Minauture missile APS. Issues with miniature missiles is because of small diameter size homing features have more limited ranges especially engaging fast maneuverable air to air missiles. Therefore the 360 degree photonic radar will also compliment this feature since the frequency range is higher than X-band which offers far more better precision in tracking(sensor fusion with infrared/UV for enhanced accuracy). This will give this forum shitposting rights that they got the 1st missile APS on their aircrafts before the MSDM.

    3. hypersonic internal air to ground missiles. shitposting rights on claiming that the Su-57 has a better stealth option than the F-35 having an external option.


    Sponsored content

    Su-57 Stealth Fighter: News #7 - Page 18 Empty Re: Su-57 Stealth Fighter: News #7

    Post  Sponsored content


      Current date/time is Sun May 16, 2021 4:41 pm