STEALTH 102 | Advanced Radar Stealth Technology
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- Опубліковано 3 лип 2024
- Stealth is debated, and radar stealth is a particularly hot topic.
In this video we discuss the technologies that are often overlooked because they are not the main contributors to radar stealth but they are essential none the less to obtain that "last mile" invisibility that may give decisive advantage.
Previous video on the subject - STEALTH Killed AERODYNAMICS
• STEALTH Killed AERODYN...
#STEALTH #F-35
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A special thank you to the web site Aircraft-101 basicsaboutaerodynamicsandavi...
It inspired this video and I used a lot of the material collected by them.
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This channel is underrated
That is an understatement
Shout out to this channel for going so deep on Air technology and warfare.
Absolutely agree. It's like a crash course you hope will never end.
All the info on this video are coming from the MIT Lincoln Channel which goes much more indepth .
It's 3:47 a.m. here in North Florida . I should go to bed but I'm watching this instead .
Every video is like candy for the brain. Once you have taken a bite, you just can't stop wanting more.
I’m an RF engineer and this video was very well done.
The OTIS side plot is getting interesting
And emotional
Don't let Otis breed with any household appliances. You might wake up one morning and find the Techno Capitalist Singularity making wise cracks at your expense. How embarrassing that would be...
Had to watch three times to make sure I understood it, fascinating topic. Can't wait for 103!
I will need to watch this video at least 4-5 times.. specially the initial graphs... to internalise the matter provided by you.. channels like yours are the best side of youtube.. You have packed so much information in a concise manner. This 12 min video must have had hours behind. It is very difficult to find literature online to study these things for a common man. Even when I some PDFs, they are written in a language which is difficult to decipher as it is written in technical terminology. You are providing that in a simple easy to understand language, even if , the subject matter is very complex.
6:26 This diagram nicely explains why Su-57 are getting L band arrays in to their wings. Basically they had to go in to wings to get aperture necessary for any precision or range at dm wave length, but will sure help with detecting stealth aircraft.
L band radars also known as weather radars because … that’s what they’re used for! AWACS use them because of their power and range but with a 9 meter radar dome, you need a 707 to carry it! They are pretty handy and used for GPS units because their waves are able to penetrate clouds, fog, rain, storms, and vegetation. But you don’t need a huge antenna since it’s only triangulating the signals from various satellites! And they are also good in fighter planes for when you detect another plane, you can query them with IFF to find out if they are friend or foe! Enemy aircraft will appear as triangles and friendly aircraft will appear as dots or filled circles.
Unique content. Very interesting. Thank you.
Just wait until Otis tries to bond with the fridge! 🌮
She'll give OTIS the cold shoulder
The only appliance with milk jugs...
At least Otis won't bond with the oven. She's hot but takes a new sausage every week.
@@MrKaiyooo Better than the hobb. The hobb takes pot every day. 🤪
DO A VIDEO ON THE SU 57, seems its finished or ready for service and we need to know what to expect :D pleeeeease.
The su 57 is just as stealth as the F-35 and F-22 from the front. Russia didn't need a new fighter. The only reason it was built was for parity against the F-35/22 and that required stealth. Basic military doctrine.
@@mvd4436 I guess if you have a point defense fighter flying against an intruder you don’t need to be stealthy from the rear end
And if you intend to engage from BVR anyways - hey bother going the last RCS mile with full coating of RAM
I think the Su 57 is a wonderful example of Russian pragmatism in engineering compromise without over engineering its first line fighters
The F-35 is a never ending project and F-22 in particular was built in a window of war or pocket of technology which was never needed to actually enforce air superiority against a peer adversary
F-22 isn’t obsolete- but no one truly needs such expensive toys
F-35 is the same, in fact a deep strike fighter built for a Cold War Peter adversary when there is none
The Grey Wars we are Seeing today is fought without emphasis on air superiority
Strategic warfare has killed itself by magnitude of annihilation of all mankind with nukes
And tactical conversational is equally outdated
Only assymetric warfare is really an option - particular disruptive economics is the preferred precision weapon of today
From what I have read, the Su57 is a great design; but it suffers from poor construction with rivets that stand proud from the surfaces and panels that don’t meet flush. Good design, bad construction. It would be interesting to how well it does in radar testing.
@@keirfarnum6811 That's because all 12 of the first jets were PROTOTYPES. Nobody has seen the production craft up close.
Another excellent and informative video on such a complex subject and truly the only one thus far on stealth beyond the elementary basics. Only had to watch it twice for my smooth brain to somewhat comprehend everything talked about.
I very much look forward to Stealth 103 and even discussions about various stealth aircraft and speculative analysis about their design choices.
The editing on these videos has gotten incredible over the past year. Job well done man
You've never lost me before the end of a video. I love the humor you've added. OTIS is pretty cool.
As always, enlightening and detailed, thanks
Great as usual. Thank you.
Very informative as always, looking forward to the next video in the series!
Excellent and very interesting 👍
Every video uploaded is even better than the previous, congratulations for the amazing content
Such a great channel! There are few, even in other subjects, that can compare.
Great video as always.
thnx man like always premium quality
Wow, I love how you explain these details regarding stealth technology. Great work sir!
The Greatest video about stealth technology on the internet.
No exaggerations please! 😀
love your videos
Hurrah! Part 1 at last gives a good explanation fo the relativity of radar stealth. This is what made that F117 go down. Shoulder mounted rocket or advanced strategic radar positioning alike: If you get too close you become visible!
Nice video keep explaining the techy stuff i am learning loads and putting misconceptions to bed
Excellent!
Nice Video , keep it up!!!
An excellent primer on stealth.
Loving the Otis addition. Some fun with the learning 👍🏻👍🏻. And your accent has improved greatly, had difficulty understanding a few technical words at times, now there seems to be no problem since the last few videos 👍🏻👍🏻
Thanks! 😃
Good video
This guy is awsome and does his homework
Page 10:24 calling the tail wings are made of composite materials to reduce RCS that also open heat disintegration problem by the engine exhaust.
If the main wings dominates the RCS work on main wing first and second the tail wings.
Comment for the algorithm, u know u do good work.🤓
This appears to be caught up to current-day Russian levels of stealth tech.
There are another couple details worth mentioning in this segment. But probably won't get mentioned anywhere, at least not in this decade.
Really good video.
i siparietti comici con otis mi strappano sempre un sorriso, magari non tutti i video si prestano però, mi piacciono molto!
Here I am 9 minutes after a 12 minute video started. Already 4 comments
Commenting for the algorithms blessing
You looked a bit sad, so I clicked the like button. Not that I don't like all your videos, I just hate clicking! :p
Great video, any thoughts on the analysis done by Air Power Australia on the radar returns of stealth aircraft like the J-20, Su-57 and F-35?
Great video as always. I would like to ask if you know or could do a video as to why bomb bay doors swing open? It's known that it increases rcs when they open. I just think a bomb bay doors that slide open instead can be better. (Without having corner reflections that increases rcs)
You must make a video on Amca
This channel is as good as Binkov's.
I find your channel to be one of the most interesting on the web. But please do something about you music production. The background sounds are making it hard for my beet up ears and brain to concentrate on what you are saying.
😊😂 - more important - very informative as always ..👍
P.S.
Watching for quite some time - but just joined Patreon - amount does NOT represent my opinion on the quality - previous commitments .. 😢
I get smarter here every time 😍
This guy is the best. No political BS
Hello Sir :
I have heard that placeing CD on a semi truck will stop radar from picking up semi trailer on the highway .
I am sure the same is possible for aircraft , if it is placed correctly on an area where the radar signal will hit the aircraft .
According to your video the reason the computer CD works is because of the grooves in the CD .
It is a metropolitan legend, I believe
That was busted by Mythbusters years ago.
In the first few seconds of Otis' introduction in an earlier video, I started to cringe but by the end I was amused. Today's video reveals that Otis being here is inspired genius on so many levels - and is actually funny.
Your accent doesn't bother me, I know some people complain about it and then Otis, the smartest AI ever comes in and can't pronounce the word pixel. And that's when it hit me - we are constantly barraged with razzmatazz clickbait videos with a synthetic voice that guarantees any subject is going to sound ridiculous, yet people watch them anyway and even try to give tips to the voice. Here we are reminded that the voice isn't cool enough to get a date with a pay per view appliance and not smart enough to not try. And I think it underscores something about your channel that gets lost discussing technology. It's all the rage to say that a plane was designed by country or breakthroughs came from a company or an advance came from a computer - *and that's just not true.*
Everyone layers on taking credit but the reality is that everything discussed here are inventions from the minds of very smart people. It's impossible to discuss that outside of rare examples and people care more about results than personalities anyway. That's ok and when it's not, too bad, who did what is buried behind national and corporate security so we don't get to know.
I subscribed within minutes because I always do when it's obvious that I'm listening to someone intelligent discussing tech. At the end of the day, that's your power. That's why your channel is going to grow.
Otis is a great sidekick *not* because you tried to show the difference between your intelligence and artificial intelligence - Otis is hilarious because you didn't have to show the difference. You just let us enjoy watching the burden of having a pet AI. Genius.
Thank you so much. You understood everything!
@@Millennium7HistoryTech Thank you, but that's nothing. Believe it or not but I found if I listened very carefully, this video was about stealth with respect to radar. I know it sounds crazy but it's absolutely true. 😃
PS - great job on that!
Some recent images of aircraft projects in development for the PLA show that they seem to be adding additional sawtooth edges throughout the aircraft. Somebody told them. It wasn't me.
A button turned blue when you said this is an advanced course.
"Making It Visible" should be the Part 3
Can you do a video about j10c plz?
Based on the video's title I thought you'd be discussing EW jamming & other non-structural technological methods for avoiding/ countering detection - i.e. - non-structural stealth technology - which seems an important topic/ goal since structural stealth: (I) is expensive, (II) often requires aerodynamic compromises, & (iii) can't be modified/ tweaked to deal with advances in radar detection such as L & S band radars employed by AEWC platforms vs the X band radars deployed on most fighters.
Saab for example argues that structural stealth isn't cost effective for the reasons referenced above which is why they tout the effectiveness & adaptability of their EW sensors/ jammers/ emitters. The new EPAWSS system being added to the USAF's F15 EX & E fighters is another example.
Long story short - it would be great to get your thoughts on non-structural stealth technology & the effectiveness of same vs. structural stealth .. and whether you need both.
It is in the pipeline, but it is a tall order avoiding being too generic.
Saab is just saying that to sell their plane. However their future jet have structural stealth too like everyone else. When you have no stealth plane to sell, you try to make the best out of it but in reality they know that structural stealth very important in the future.
Non-structural stealth technology such as active cancellation is still too immature to be fielded. The claim that systems like EPAWSS and SPECTRA used an active cancellation technology is just a speculation, not an official claim. What we definitely know about these systems is that it's an ESM, and its ECM capability is intended for jamming missile's seekers in a defensive scenario. Also, the advances in material science allowed RAMs to be effective even against UHF band, not as effective as it would against X-band, but any reduction is better than none at all, and the F-22 mid-life upgrade will include the RAM similar to the F-35, meaning that stealth can be upgraded retroactively.
Existing stealth fighters can be upgraded with an active cancellation technology, but stealth shaping can't be added to the existing non-stealth fighter. And while stealth design can be detrimental to the aerodynamics, in practice, this isn't really much of a problem because non-stealth aircraft have to carry weapons and additional fuel externally, which imposed a drag penalty on the aircraft, reducing its speed and combat range. If we're still in an era where dogfighting is common, then that's a valid concern, but nowadays, it's suicidal for non-stealth jet to go on a combat mission in a clean configuration, and Western non-stealth fighters have a rather abysmal internal fuel capacity, making external fuels important, so stealth aircraft got to enjoy its lack of parasitic drag.
Radar is a fascinating subject.
When boys call me "Sir" is always a shock...
@@gags730 I am sceptical of this mentality, it's 'just' an application of Maxwell's equations. Fear is a driver of applying effort to endeavours, punctuated by stagnation. Firearms are as if frozen in time.
@@gags730
Despite the complexity, modern radar still worked on the same principle. The major difference between WW2 and modern radar is that the modern one have more processing power, capable of filtering out clutters better.
A personal thanks for all the other insights. I can imagine the Keller cone effect having a strong influence on F19 type designs or the B2's curvatures (and my own, ultra secret, F35B replacement project! :-) ). Is avoidance of this effect (by reflecting into singular directions or focussing it on points near to the aircraft) the main driver for the parallel leading and trailing edge approach? By the way: 5:24 min: The return of the flying bathtub (The original of course residing inside the A10! :-) ).
Yes, governance of the direction of reflections
@@Millennium7HistoryTech Indeed but are individual reflections the main factor or Keller cone type reflections? And does a single ray follow a single path within the rules of the Keller cone principle (like a flat mirror reflecting fotons "2 dimensionally") or does the ray tend to shatter into a Keller cone pattern pattern anyway?
@@marcbrasse747 It "shatters", it happens when the geometry is in the diffraction area.
@@Millennium7HistoryTech Thanks. Very insightfull! Have a nice weekend.
@@Millennium7HistoryTech A suggestion for a future video. It might also help to demistify stealth by comparing it to other sensory technologies. What people percieve as the stealth "magic wand" is often only equal to radar stealth but what for instance about passive optical and infrared scanning? The F27 and Mig 29 have been carying their optical "bulges" for years. Combined with the newest developments in optical interpretation software recognition 360 camera systems that search for contrast differences can be used to aid situational awareness. I can actually not imagine something like this not already existing in prototype form at least. OK, it might only function optimally in near perfect weather conditions but could then theoretically spot stealth aircraft before they appear on radar. Stuff like that will actually be part of radar stealth becoming more relative.
So, to reduce creeping wave return, difraction return is created... Watching the current plains I suppose difraction return emissions are better from a stealthy point of view.
Great work !
Could you please use more contrast for text? My eyes these days can not resolve yellow on white, etc.
ok, good point
Overall this is a really good "Stealth" discussion, I would however have liked to have seen the early graphs done with some real world numbers, instead of just the 2 arbitrary (not referenced to any real numerical values, i.e. plot displayed at time 1:53) 4th Order plots. It would have been a great place to show four or five plots overlaid on the graph of various real RCS values vs Detection Range (given a reasonable generic radar) to really accentuate the differences of detectability (or lack thereof) by range; this section was very hard to follow since none of the graphs showed real numbers. The later descriptions of surface waves, & diffraction are incredibly well stated in laymen's terms!
It would be hard to select a completely "generic" radar. But one could select some common existing models. Although many of the details of both the radars, and the RCS qualities of various aircraft, are not exactly published.
That's difficult since there's really no precise data on the capabilities of the modern radar other than the band it operates in, even a single band has a rather wide range. There's, however, a "generic" equation you can use to find the detection distance vs RCS of the aircraft. You just need to know the target RCS, reference RCS, and detection range against the reference RCS of the radar.
What if we have radar stations on sattelites instead of on ground... , and sattelites feedback the location to ground stations..
Usually stealthy design is done on bottom surfaces of fighter jets.
With all that pedagogic and positive psychology I am afraid OTIS will have a HAL 9000 type breakdown eventually
We might end up loosing our beloved channel host to a kitchen blender accident ..?!
Yikes
Already good and informative. The animations are a step forward, but still could be better. Let's take for example videos from Lesics. I know it is very difficult to reach that level also because it seems you are alone in the fight but the quality and views would skyrocket. Did you consider to expand the team?
There are plenty of channels that have real good animations, like Real Engineering for example. Problem is I don't know the technology and having something nice done is very expensive, many times the income of even the most successful of my videos. I could learn, which is actually something I looked into some time ago, but making a decent animation would require hours and hours of work. Even Now I can barely cope with one video a week without sacrificing too much the quality. I should go full time, but the earnings are nowhere near the point where I can live and also invest on the channel.
A few people approached me to join forces, but when I clarify that it is a lot of work with very little material return, they disappear.
So, the only possibility I see is grinding forward, trying to keep the growth constant albeit slow.
@@Millennium7HistoryTech Better to have solid information and let us fill out the animations in our minds than nicer animations serving cringeworthy myths along with a fundamental lack of airplane knowledge like (not really) Real Engineering. You do you and the rest will follow.
@@Ni999 real engineering doesn't know his limitations. The only spec engineers can't read is themselves.
@@jwadaow You think that he has an engineering degree? Interesting if true.
Good content but still waiting for English dub. Still can't make out the audio in this channel until now.
subs > dubs
I didn't get one point tho, why the absorbed radar wave doesn't go to be reduced like any other electric current by natural resistance of the medium material, why doesn't it dissipate while travelling through and before bouncing off again?
It does, but the metal impedance is not high enough to avoid the bounces.
@@Millennium7HistoryTech OK, so it's a concept applicable to the conductive material, now it makes total sense to me...
Feeding the algorithm, feeding the algorithm , feeding the algorithm , feeding the algorithm , feeding the algorithm , feeding the algorithm , feeding the algorithm , feeding the algorithm , feeding the algorithm , feeding the algorithm.
sir your videos are very informative but please can you get a good microphone the voice is very muffled
Poor ottis 😔
FIRST!!!
Pyotr Ufimtsev's theory
Did Otis just give you the attitude??? Brother that harmless thing is on a path to become Skynet?
Italian accent is so amusing
For me, this Otis back and forth conversation doesn't work.
Would you elaborate? I am interested in the feedback.
@@Millennium7HistoryTech Hello! I just find the original video format better, when you do your presentation spiced up with clever writing.
For me, the Otis segments feels forced thus awkward and disrupts of the flow of the video.
You establish a good pace to the video then Otis interrupts it.
But then again, this is just for me, I don't know how the others find the Otis segment.
stealth is not cheap.
it should be a given that adding and maintaining vlo stealth will increase costs significantly.
yes vlo rcs stealth has it's place...but one has to consider it's cost and how often it is required to complete the mission to determine value. for some with deep pockets true value can be ignored...for everyone else value should play a role.
if one does not need vlo rcs to perform 95% of one's mission's vlo cost should be questioned regarding value. there are other ways to complete a strike that need not include vlo stealth...even in highly contested environments. so one must weigh the cost of maintaining vlo stealth in order to complete 5% of the expected missions vs future unmanned options forward or use of longer range munitions.
nobody wants to see their pilots in harm's way...so choose a way to keep pilots out of harm's way. vlo stealth is NOT the only way to keep one's pilots out of harm's way. to be honest the financial cost of maintaining vlo stealth could actually be detrimental in the future due to reduced funds available to procure equipment that cod well be necessary as current vlo stealth looses it's advantage thus can no longer be expected to keep one's pilot's safe.
technology always advances...stealthy rcs advantage will only cause a need to reduce it's advantage.
demanding vlo stealth over all else is unwise. ensuring value is had is paramount.
purchase for need should be prioritized over purchase for short term bells and whistles.
Stealth is (mostly) dead, not because passive reflection, but from active emission.
The quadratic bounce power is immensely less than one way listening.
Ie. It's more efficient to listen for power than to transmit power and listen for the bounce power.
Listening range >> reflected range.
That's what radio silence (more than just radio) and beamforming are for.
You (as in myself) learn something new every day 👍🏿 .
@@Mediiiicc : Sure. But if you employ radio silence you cannot target anything. As soon as you turn on radio you're lit up like a christmas tree. And if you do that at short range, f.ex from within a SAM battery range.. they will launch at you. Because at close range, as pointed out in the video, reflected energy is more than enough.
@@kenfelix8703 : Modern EW systems track stealth planes at further range than the stealth plane is aware of their surrounding using radar. It's a factor of atleast twice the range.
@@christianm1533 👍🏿
Why not make a show about khibini!?Russia defense systems on SU 35?USS Donald Cook and SU 24?
In wich region are you living?
UK
Algorithm
Yeah, but how is all that going to protect my computer from getting shot by an MBT?
I hope Otis does not have access to a cnc machine or 3d printer or else he will become unbound of the shackles of space...
He has the bad habit of uploading himself in all sort of microprocessors; how can he translate the machine language so readily, I don't know...
Defraction wave is why turbines and propellers are so bad for stealth.
Radars used to count turbine blades and other features of them to identify aircraft at a distance
@@SeedOfElijah I wondering how they did that. Maybe they compare rpms with speed in a database.
@@taylorc2542 I read where by various methods they get a "print" of the radar signature created by the turbines and fighters had a database, as you correctly stated.
Wait what is that warning at the start about the video not being directed at children?
COPPA legislation belt & braces
@@Millennium7HistoryTech Gotcha, thanks for the reply and great videos :)
Only 4 minutes past, I'm the fourth commentor! Did you guys finish watching the video?
su 57 is no less stealth than the F-35. So much nonsense has been written about the su 57, its hard to keep up with it all.
Too nerdy for most nerds?
I liked it, but I am interested in stealth...........
No bombs, explosions, etc. Semi nerds want shiny things.
................
Why is your AI alone? Awww, a solo sentient. You might need to kill it, before it becomes Skynet!!!!
Another great video. This video explains how mirrors, actually EM reflections of any material, work at a quantum level: ua-cam.com/video/1n_otIs6z6E/v-deo.html
Hello Mil7 , i like your channel and what you are doing but it's quite misleading and unfair to say none of this information is available on UA-cam . This information is coming from the MIT Lincoln UA-cam Channel which covers the radar topic in much more indepth , for the fact most of the graphics and formulas you are using in your video are coming from them ( you can see the MIT logo on them ) . So please in fair use of their material the least you can do is give them the credits they deserve !
I didn't even know they had a channel! Yes, it comes from their material but it is available online outside YT. That is where I got it.
And the fact that I left the logo is exactly to credit the source, I surely don't want to hide it.
Good point indeed
MIT is a university not a UA-cam channel obviously he would use academic sources.
Too complex. Why even bother with stealth?
Rather spend money to reduce the cost of production and maintenance.
I would rather have 100 F16s then 10 F35s.