How Does Stealth Technology Work?
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- čas přidán 23. 11. 2017
- Stealth aircraft can give pilots a huge advantage over opponents by being difficult to detect on radar - but how is it possible to keep something so large and powerful hidden from the eyes of the adversary?
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LinusStealthTips?
Deon Spates for PAYDAY
xD
Eecks Deeee
Another Glitch ULULULULULULUL
ye im using dark mode.
So it's not a good idea to put RGB on my stealth bomber?
Serg The Purge It will make it more visable but go 10x as fast.
It will make it Go faster than light, dont believe that einstein guy Kappa
nah but that 100000000000000000000000000000000000000000000000000 billion decibel speaker should work fine!
Paint normally known as RAM (radar absorbent material)
Can you get RGB RAM tho?
So wait, I can make shit stealthy with just a quick and easy download? That's awesome...
Now I understand why RAM is so expensive.
Can it be overclocked through XMP?
Cavey Manta nope but can be upgraded using JSF program
They just did with a 50 year life cycle cost of $1.5 trillion
As an avid aviation, technology, and military junkie I'm very impressed with the quality of information in this video. Given that I thought you might be speaking out of your area of expertise I was not expecting this video to be so full of good information. Especially given how much disinformation is out there on Stealth technology these days.
I commend you, even I learned something new from this.
Just use incognito mode.
69th like
nord vpn
True
Airplane mode on. Wifi off. Data off. And you good
moron
Fun fact about flight stability. The Eurofighter is purposefully built to fly as unstable as possible. In this case, stealth is not the reason, instead it is the fact that an aircraft that flies unstable is physically easier to get off-course, making it more maneuverable. This makes flying it incredibly difficult, virtually impossible, right?
No, it doesn't, because it has a fly-by-wire system that is constantly making microadjustments to keep the plane steady, executing the pilot's commands precisely and quickly.
What does it mean for an aircraft to fly 'unstable'?
Joshua Tsang Well, an aircraft that flies unstably is one that does not fly stable (kinda obvious, but that means it is necessary to explain what it means if an aircraft flies stably).
An aircraft flies stably when all forces (aerodynamics, weight, etc.) pretty much cancel out, meaning without any input the plane would fly steadily and not change orientation, or at least if it did change orientation, it would do it in a regular manner (like if it was pulling up or down continuously).
Jumbo jets, for example, are built for maximum stability, since this provides a good flying experience, safety and efficiency. However, since the plane "wants" to hold its course, the force needed to change that course is rather large (aerodynamics have the biggest influence on that), which is a problem for fighter planes that need to be very maneuverable.
That's why it's useful to build them so that they will fly unstable, meaning they are built so that if no input was given, they would probably "wiggle around" a bit and change course irregularly. This "wiggling" is, in the case of the Eurofighter (and I think others, too) counteracted by an electrical system that basically gives the opposite command of what the plane wants to do, and since it is irregular, it needs to measure and process the plane's movements in real time.
The advantage is that its course can be changed with rather little force and also, the plane will not be dragged back to its original course (this can happen with less maneuverable aircrafts, mostly if the rudder is used too strongly).
JustusLM This is interesting, thanks for the detailed reply. May I ask if an 'unstable' aerodynamics is in fact a metastable state, or an actual unstable state?
Same for the F-16
JustusLM The Eurofighter is absolutely not "as unstable as possible". There are significant trade offs between stability and maneuverability, and it's not as simple as "more unstable = more better". In fact, that's a terrible design philosophy.
Furthermore, the Eurofighter is not the only aircraft that's unstable. All modern military fighters are unstable, but only in pitch and rarely (if ever) in yaw and roll. Even the Boeing 787 is what's called neutrally stable in pitch, neither stable nor unstable. This is for fuel efficiency reasons, not maneuverability.
They just get rid of the RGB saved you 6min your life
What are you gonna teach me now "Teachquickie"
Ironically, this comment has 256 likes as of now
If you put red stripes on the Nighthawk, it will look like a gaming laptop.
LinusEngineeringTips
Real Engineering
I would watch that channel
me too
Next on Techquickie :
Leaking Highly Classified Info about USAF........
Akash Mishra next on CZcams comments: getting all worked up about public information easily found with a Google search and claiming it to be "highly classified"
David Kahmann where did I say info in this video was in any way classified lol, If it was, Linus Wouldn't be making videos anymore
Nothing in this video is classified. The classified info is how these stealth mechanisms are engineered, rather than what well-known laws of physics they rely on.
Dont worry, north korea wont see this video, they dont have internet
Akash Mishra
, search US patents on Lockheed's stealth fiber materials.
Without a doubt, one of the best TechQuickie videos, Linus. Many thanks - this was great!
Love this video. Please do more tech videos about military hardware, or even just non-computer related things.
These tips are gonna be great for my next stealth build
this was an interesting one, I want more like this
Thank you Otacon!
That was quite the quickie
Bucci I'm still sweating ,
This is really cool. I kinda knew about the flat shapes but not the paint.
And nice job on the graphics if you did them in house. Their no thought cafe graphics but simple and shows us how it visually is happening.
but the real question is.... are stealth jets gonna have RGB???
.
Radar guided bombs? Sure! Why not?
Depend on the technology , materials and minds behind the creation.
There's an excellent article on TheDrive about some declassified F-117s. Apparently that special paint is still super-secret and also very toxic.
It was only a couple minutes later that Linus from LTT was found dead
Naw. This was all dung so he is safe. the F117 demanded a lot on shaping. The coatings and other details of the B2, F22, and F35 are classified and what Linus said was at best just what people guess and put on the internet.
why does this not have RGB?? LINUS?? are you okay!!?
this has to be one of the best videos you ever put out
after the anti rgb build
"Radar Asorbing Pyramids". Technical term is Radar Asorbing Structures or RAS. Also F-117 was possible only because of Fly-By-Wire technology.
Iluminati confirmed
I think we was just referring to the facets and faces on the F-117.
However, the triangles under the ram that he mentioned would be a better example of RAS
Was expecting a Tunnel Bear deflecting ISPs.
From someone who personally worked with 3 of these aircraft mentioned: Linus did a good job on the basics of stealth technology. Good job👌
For future reference: these paints can cost up to $5000/ GALLON. Yes I said Gallon. GG. And technology itself using avionics can help reduce radar return. The F22 is a great example of this.
Uhh... isn't that bit about the avionics OPSEC?
I enjoy the fact that when Linus mentions Infantry the picture shown is US Marines on the Firing Line
My fav plane is the good old Blackbird
Same here!
fast enough to just outrun the missiles hahaha
Ahh, had a flash back when playing ace combat 2
Blackbird always remains the GOAT
The US did not have a good supply of titanium. So the they set up a fake company to purchase the titanium from the USSR. The vary country that was to be spied on. LOL
I think we can use AI to detect the behaviour of returned radio waves and classify them weather they can be from an stealth bomber or birds.
Ayyy you know what few people know about the f-117 Linus. It is truly an attacker. They gave it a fighter designation so they could get the best pilots the Air Force had to offer.
-T-X-M- as Linus said it was very unstable. Not just anyone could successfully fly it. The fighter pilots we're truly the best of the best. They gave it a fighter designation to allow them to keep their pride. Just look up the payload of the plane and you will see that it really didn't have a air superiority roll.
What is that dope fade transition at 5:35 called?
Speaking of Stealth, Tunnel Bare is the....
JonathanDavid J I was waiting for it. I'm dissapointed.
FiveOh Same
Does anyone else wish linus would go into more detail? Don't get me wrong I love the vids. I just wish there were atleast more parts relating to topics like this one( how does stealth work part 1 of 4).
I am pretty excited to see how it goes if Linus will drop this one. :D
Happy Thanksgiving Linus!
Everyone in the comments talking about the F-117 lost in Serbia in 1999, let me explain this to you. The F-117 did not get shot down because of it "lack of stealth" originally. The main reasons for why this nighthawk was shot down were: bomb bay doors open (reducing its stealth capability and increasing its RCS), the F-117 had been flying the same route continuously and the serbian forces knew roughly where to focus their radar search, and the implementation of LFR (low frequency radar) which is effecive at detecting earlier generation stealth aircraft such as the F-117 and SR-71, but has very big issues with background noise, needs to know exactly where to look, is not very good at guiding missiles onto a target and requires a very very large antenna array. This is why the F-117 Nighthawk was shot down. Not because its stealth didn't work, but rather a combination of unfortunate factors which in the end resulted in the first and only loss of a stealth aircraft to date.
Trying to talk rationally with the people claiming stealth doesn't work because a single F-117 was shot down in it's entire operation history is like talking to a flat earth moron. They simply do not possess the intelligence required to talk about the subject matter.
+David Smith +AugmentedGravity It was not shot once, they got hit additonal 3 times, the other 3 just ended up somewhere in Bosnia so Serbian cameras couldn't film them.
The bay door being opened and flight patterns is a pure speculation and myth used to excuse the failure.
F177s haven't flew 100s of sorties, most of the targets were hit with tomahawks (400 of them were sent just on the first night of the bombing) and the "normal" jets flying above the height those outdated Neva missiles from 1960s were able to reach.
While it is more difficult to track down stealth planes from radars in other planes, it's way easier to do it from the ground radars which have far bigger antennas and which can alternate their frequency relatively fast (from small wavelength to the bigger ones).
With bigger wavelengths you can track down the plane's approximate location, and with that data, you can program your radar to focus with smaller wavelengths to that location giving you with more precise plane's location and speed.
In '99 that was the top of the technology being hit by a unit of men which knew what they were doing using outdated technology
Augumentedgravity......ever heard bout OTH radars?? They use low frequency radiowaves......RCS increases with decreasing frequency........it's true that target resolution is clear at high frequencies and less noise clutter...but using digital signal processing technique we can eliminate noise at lower frequencies.....& That's how they detected F117 A........
wow look at the comment above, you are not as dumb as as flat earther, but still come off as a conspiracy nut. 3 shot down, pftt.
@@guestimator121 nice Serbian propaganda by the way
Wow what a topic for tech quickie
Nice video as always
The best video by this channel
Awesome video!!!
Linus missed an interesting tidbit. All stealth designs avoid planar surfaces intersecting at right angles. A little bit of ray tracing shows that a pair of planar surfaces will reflect an incoming radar (or light) beam back to the sender no matter what direction the beam comes from. As an example of the opposite of stealth, the inside corner of a cube (an array of them) was put on the moon to reflect laser beams back to the sender irrespective of position on the moon. This avoidance of concave right angles can be seen in air intakes and outlets of stealth aircraft.
Very interesting tehnologies !
I thought this was a SciShow video
Ed Dank Same
Ed Dank Or a Seeker/DNews video
I have mistaken it with real engineering :o
Wow, real world tech info. nice!
You know you've seen way too many LMG vids when you recognize the reused clips.
Love the explanation of yours
Linus: Explains how stealth tech works.
The Evening News: If you have any tips that can help find Linus call crime stoppers.
It awesome thanks for this
really interesting!!
optical vs laser mouse?
2:42 *CARBON NANOTUUUUUUUUBES*
Good explanation Linus
Didn't expect to find Linus explaining this to me. I'm Reading skunk works!
This channel is Super High TECH Quickie
I did not see this video coming
That is the field where i am expert in a civillian way.
Beautiful planes :)
Mostly what you are talking about is Passive radar deflection methods, years ago, Illegal in both the US and Canada you could order a kit for your car that deployed a field around the car through a front plate and a rear plate, more complex kits had side pieces for your car. They produced a M.A.S.C. Unit that essentially that actively dispersed Laser and Radar signals that either registered as nothing on a laser or showed "ERR" on the radar gun. basically its the same idea as reducing sound waves like active noise cancelling sending waves that cancel each other out of the opposite frequency.
Bahut aachi jankari di
I thought up a design drew it and posted it the CZcams video is called "gen 6 stealth jet fighter design (top view)pt. 1 🇺🇸"! There is also second video "gen. 6 stealth jet fighter design ( bottom view ) pt. 2 🇺🇸
The F22 looks so great...
Super...i like it
nice sci-show video guys
Next up on the main channel:
2-BILLION-DOLLAR STEALTH BOMBER REVIEW AND WE DROPPED IT
Can you do a video on PLX chips?
TunnelBear would have been a really appropriate sponsor for this video.
Carbon? Nanotubes?... Where's keys when you need them?
Linus, great video but one tiny tiny error that probably doesn't even matter. At 2:55 you mention the F-35, but with the name "Lightning", which instead refers to the legendary P-38 Lightning. The F-35 is called the Lightning II.
Linus tech tips 2nd channel? Cool topic and quality vid
First of all, I love your channel. With that said, you are very wrong about why the shape of a stealth airplane is shaped the way it is. The shape creates an electromagnetic bubble around it at the frequencies RADARs use. (you can refer to the original document.) The best way to explain it is the way light travels through a series of slits and creates dots on a screen. It is this math that needs modern computers and why the FB-111 uses flat sides.
Interesting stuff i never knew i wanted to know...
Linus Given how much you know about stealth tech do you have any opinion on the F-18 vs F-35 discussion in Canada?
Maybe next Video about AVX and AVX - 512 and what it is about?
I like this.
I got the CaptianJoe vibe when he flashed the planes taking off!
pleas do one on audio interfaces
Simply amazing how advanced the United States Military is.
U can also have something called passive radar, witch detects "sounds" without emitting radio pings
Linus' ads always stealthing past my adblocker
whelp linus is on a watch list now
The first stealth shapes were extremely angular because of the computational power available at the time
how emp resistant equipment works next?
YAY! Knowledge.
Do an episode on motherboard chipsets
nice transition @0:27
You're that Ninja.
Can you please do an IGMP Snooping tutorial?
New video Idea, home made stealth aircraft!
This will come in handy next time I'm making stealth plane.
That’s not actually how it works, it’s a secret so they say it’s just paint and some angles to throw the enemy off. Every stealth plane actually has sensors and transmitters on every flat surface, when radar waves bounce off the transmitter blasts the exact opposite radar wave back at the enemy radar very similar to your noise cancelling headphones. Reason they don’t use round surfaces is that it’s too hard to calculate what wave to send back.
So here's my question about stealth fighters and ships. I understand the radar absorbing materials and the shapes that they use to absorb and deflect the radar waves but what I can't understand is how we make the RF that the radar and other transmitters from the stealth planes and ships not give them away. Even when I was in the navy many, many years ago we had Electronic Counter Measures (ECM) which not only told us somebody was there but by analyzing the parameters of that radar signal we could even tell what kind of radar it was.
But all frequencies are just as detectable as any RF.
A wave length is a frequency.
I'll give you credit for good guesses but the fact is that all a radar is is a radio transmitter and receiver and any receiver that had the capability to scan different wavelengths in the band that radar has got to use in order to function is just as detectable as the radio stations that you can pick up in your car radio.
good video. i should watch it.
He said agaynst.
Thought this was from Real Engineering or some other science channel. Aaaand then out of nowhere, there's Linus.
do another video on ICBM technology
Should've chosen the tunnel bear ad for this one...
1:00 I'm quite sure NCC-0514 didn't have cloaking device
that voice Linus always recognize his voice
*Woah*
The trick to making curved surfaces stealthy is not having a constant radius.
Am I the only one who likes Linus’ videos before actually seeing them?
There is a sign on the side of the road that displays your current speed that I drive by everyday on my way to work. It never displays my speed, I must have a stealth mini van.