Added: 4 years ago
From: ZliaBR
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  • It's gratifying to hear comments from other people who understand compressible flow. Keep fighting the ignorance.

  • Excellent demonstration of P G singularity. Saw this 3x at the jones Beach Air Show today!!

  • It's really one of the best cones I've ever seen... BEAUTIFUL!

  • @TheJeffreyklm amazing ;)

  • still the best footage out there, the best part was the low altitude near stall.

  • the most impressive part is at around 2:25. That's amazing the angle of attack being so steep. 

  • 100:00

  • Vapor cones form when two conditions are met. 1. there is water vapor in the air. 2. there is a drop in pressure sufficient enough for the air temperature to reach its dewpoint (fog). Vapor cones are formed by shock waves produced by an aircraft.  Shock waves form when the airflow over a vehicle is accelerated (wings accelerate airflow) at and above Mach 1. Super sonic booms are created when the aircraft itself reaches or passes the speed of sound (mach 1). It is highly compressed air.

  • Did I hear that commentator say it was braking the speed of sound? I didn't think that was allowed that close to people... at an airshow... where the military would be liable for your ruptured eardrums.

    He might be close, but not Mach

  • @Zippercdrr He actually says, "You'll notice the white vapor coming off the super hornet, indicating it's close to the speed of sound."

  • Should've titled the video " Prandtl Glauert Singularity" instead of sonic boom. =P

  • @JetZeroFox Ty. Done ;)

  • Hey dumbass, a BOOM is a sound. You are pointing out something you SAW. idiot.

  • thats condensation the speed of sound is 743 MPH no way you would be able to get that on camera perfectly retard

  • correction =P since hes at sea level, the speed of sound is 761 mph.

  • umm if you remember after 911 a plane flew over the US in sonic boom or close and it shook my fucking house to hell this isn't sonic book at all the announcer even says he comes close title your video right knob

  • FUCK YA ANTHRAX

  • My two cents: First of all it's illegal for jets to break the speed of sound at air shows according to the FAA, and the sonic "boom" does not blow apart glass or your ear drums.

    Second, when a jet compresses air like that, (so much that you can see it) it doesn't mean the jet has broken the sound barrier. (If you squeeze the air in your mouth hard enough and blow it out slowely, you'll see that it has turned white. ...same thing.)

    Third, that sure is pretty when they do that huh? :)

  • Yup the Vapor people see is what Everyone on these Boards thinks is the Plane going passed the Sound Barrier!!!LOL

  • amazing pilot. false tittle

  • @goddamnbouy Why?

  • @goddamnbouy : Hmmm? what is false about the title? It does show a vapor cone, an instance of a Prandtl–Glauert singularity, so the title isn't really incorrect for what is shown...

  • Oh, I see, the title has been changed.

  • @tr41 video used to be titled sonic boom.

  • @goddamnbouy: Yes, didn't notice that it had been changed before after posting the reply, my apologies for that..

  • The windows would not burst all over town if the jet breaks the sound barrier. Not possible.

  • @skoobdaer Not all of them, but some certainly could.. It used to happen all of the time, it's one of the main reasons it's illegal to break the sound barrier now.

  • @MawcDrums - It's not "illegal" tp break the sound barrier. Military pilots have a standing order not to do it. And, that order is not given because it will break glass. It's a standing order because 1. The military does not want it pilots flying that fast over populated areas and 2. Because of the noise it makes. Sonic booms cause many people to call 911 at the same time, which is bad for obvious reasons.

  • @corebare 14CFR part 36 describes the rules concerning noise limits, and 14CFR part 91.817 basically says that a sonic boom cannot reach the ground in populated areas. The authorization has to be applied for, and the "boom" has to be be done over an authorized area. So, yea there ARE laws governing it, and it IS pretty much illegal, in the sense of a sonic boom reaching populated areas.

  • If only I could get my bike to do that :-)...

  • BOOMFAIL!

  • @daveo211- thehoaxbuster is correct. Pilots aren't allowed to break the sound barrier at airshows because the sonic boom that is created would blow out everyone's window and anything else made of glass.

    You can even hear the commenter at the beginning. Sound like "why? Because we'll be blowing out windows all over town, but we're gonna get as close as we can get."

  • no sonicboom

  • @taku221 yes there is. listen better.

  • @daveo211 it's against federal regulations to break the sound barrier at an an airshow, hence the announcer said that he wasn't going to break the sound barrier.

  • actually when an aircraft breaks the sound barrier there are two booms one is the nose of the craft the "faint one" and when the tail punches through the infamous glass busting boom

  • man u have to have guts to fly like that. I would never do that :3

  • @maxint33 I would totally do that if I ever just got a chance.. :D

  • just imagine chasing some one going at the spped of sound.

  • What an incredible machine. My favourite of all airplanes. Unfortunately I never had the chance to see it at the Malta International Airshow, I really hope one day I can see it, I even got a big diecast model of an F18 - I love it!!!!!!

  • air stream

  • what are those white lines that come out from the tip of the wings? what are those called?

  • @Edgar3234 I think its just the fuel. Not too sure

  • @glossopcrue fuel?

  • They are called Wing vortices. They are tubes of circulating air that is left behind as the wing generates lift. Basically, low pressure is created over the wing and when the temperature of this low pressure drops below the local dewpoint, it creates condensation which results as the white vapor you are seeing.

  • oo thanks :) i was looking for a reply like this :)

  • Your Welcome : )

  • @Jack873rd the other comments are correct. The air pressure drops dramatically above the aircraft surfaces, thus condensing the moisture in the air.

  • @tigerswede3- I know the other comments are correct. I was just answering Edgar3234's question :-)

  • that is water vapour under pressure, it condenses, making it visible to the human eye, this is best seen when an aircraft is pulling a high G turn (i think lol)

  • Wingtip vortexes. creative i know but that what they taught us in flight school :)

  • Technology = Awesome

  • Not a sonic boom.

  • i wish they would do in the uk its so cool

  • god i love america

  • Wow can you imagine the G's

  • think about 2.5 to 3.0 g..

  • ホバリング!?

  • i dont know if i saw the eurofighter do a sonic boom, it was either a sonic oom or probably just smoke i dont know.

  • someone in the crowd should've had a [Stinger] on ready

  • @RifledBarrel

    Your parents should've had [birth control] on ready.

  • thats not a sonic boom 1 i heard the aircraft 2. you would be in deep shit if u broke the speed of sound at a airshow 3.a vapor cone means nothing

  • @golfisgreat123 that's a sonic boom...

  • they are not supposed to break it

  • it's not a sound barrier break. The mist ring is air moisture being drawn from the air in the shock wave behind the aircraft.

    Hope that helps.

  • did he say "head and shaft" at 1:08?

  • yep thats the pilot and RIOs call signs

  • yup! haha

  • Sonic the hedgehog can go ats teh speed of sound . :P he maay not be real but it doesnt matta :P again

  • Bless America.

    They have the best airshows

  • argg , wy do i live in europe :(

    i wish i could see a airshow like that.

  • lol you're forgetting the Snow Birds

  • the FAA wont let them break the sound barrier. I was at Oshkosh when the SR-71 did break the sound barrier and they were required to be at 50,000 ft, which made it a non-event anyways because you had to squint your eyes to see it. Sonic booms DO blow out windows too at low altitude. My dad flew an F-111 in the USAF.

  • WOW that really is one of the BEST Vapor clouds I've ever seen!

  • Speed is mach .99

    The vapor cone doesn't mean it is supersonic. Depending on temperature and humidity, the 'sound barrier' acutally will change slightly + or -. All we're seeing is the air compressing over the fuselage as the plane get closer to mach 1, but Navy pilot are instructed to keep it to mach .99 while USAF pilots are instructed to keep their top speed to mach .96 at air shows.

  • i love f18s

  • 0:30

    are you blind?

  • insane!

  • a cool thing i learnt was that thunder is simply the sonic boom created from lightning strikes and the expanse of air from it.

  • dumbass

  • You are absolutly right in your reason for the sonic boom. Glad someone knows it.

  • fuck THAT IS SEXYY !!!!

  • Only a girl would say that

  • You're all idiots. It says in the video "were gonna get as close as we can get" (To the speed of sound)

  • I've seen the High Alpha thing many times on CF-18s but this is mind-boggling.

  • It was not only the sonic boom....but the display was awsome...i have never seen such a display by F-18 before

  • There was no Sonic boom during this flight. The vapor does not mean that is passed the speed of sound.

  • if it was the sonic boom, windows would be shattered, & the entire crowd would have been hospital ised with blown out eardrums.

  • no, they provide hearing protection.

    and the sonic boom only breaks windows if its close enough to the source.

    sound dissipates as it travels, you know.

    and only sonic boom cause the effect of air pressure pushed around the plane in a full cone.

    it has a proper funny name, but i always forget it.

    that at the start of this vid IS faster than sound.

  • not a sonic boom...just a vapor cone...check your facts. now i myself have seen an f-18 break the sound barrier over chicsago accidentally durring an unrestricted climb...i'd guess the sonic boom came when he reach an alt of about 14,000 ft

  • no a sonic boom has nothing to do with altitude. It happens when the speed of the jet catches up with the speed of sound, which in fact puts out a wave of sound which is the boom and it looks like a cone or a vapor around it.

  • The boom does not have anything to do with altitude.

    However, as air pressure decreases the speed of sound increases. The lower the air pressure the faster the speed of sound is.

    A jet flying at 40000 feet would have be almost 100 knots faster to break it than one near sea level.

  • does anyone know the song at 1:38?

  • Got close. Definitely Not breaking the sound barrier. If you heard the guy in the beginning he said "The vapor trails indicate the pilot APPROACHING the sound barrier

  • If this was actually a sonic boom, you would definitely hear it.

  • You are partially right- portions of the airframe do exceed the speed of sound, depending on the specific contour. However, the entire airframe DOES NOT exceed the speed of sound, as evidenced by the vapor cone surrounding the plane. Check your facts. In a maneuver like this, spectators can actually hear a subsonic waveform sounding, caused by the portions of the airframe where supersonic airspeed occurs (around certain contours).

  • yeah ,and this low pressure cloud appearing around it is called the singularity phenomenon

  • this is not sonic boom but a concept known as Prandtl-Glauret condensation u can read fluid mechanics for this.

  • hey guys i just got my wings for USAAF. my friend did a square loop and i almost shit myslef in the nav seat.

  • They're either nieve or they're just trying to get people to watch their stuff. Maybe they get a dollar each time someone views their vids!

  • I don't know why people mis-label their vids to include a sonic boom. Doesn't anyone have an IQ over 80?

  • Nice video taping !

  • imagin binladen hnging of back with a parachute - let me in there!!

  • frigin beautiful

  • i was at this air show

  • Humidity makes it easy.

    Prandtl-Glauert condensation cloud.......

  • super sonic flight is never allowed over land based shows in the US you will never see it sometimes by accident Number 5 From The Blue Angels Will Occasionally accidently have a tiny boom after doing his sneak pass on the crowd but other than that you really cant catch any pilot doing a sonic boom unless your over seas but this is good footage man nice work i love the hornet its my fav =]

  • Yes, I know. But I have to agree with u: good footage ;)

  • they may break the sound barrier over the desert areas. But I think they announce maneuvers in order to dispel questions. The sonic boom is heard a long way away. Just thought to contribute that.

  • i allow it but i prefer the f-15 eagle

  • i've seen ufo's travel so much faster yet it doesnt produce that cloud around it. i mean seen it on youtube of course so does that mean that those vids are just fake.

  • but i think that this cloud only appears when you hit the precise speed of sound,maybe it disappears when accelarating.i ll ask the physics teacher.

  • i like it

    its realy very nice>>

  • THAT IS NOT SUPERSONIC!!! There is supersonic AIR FLOW, but the plane didn't break sound barrier. If that was supersonic, insurance companies probably would be mad because lots of windshield could be shattered.

  • du redst so vü scheiße

  • Zeri... the f-18 is going over 500mp max speed with the f18 is somewhere around 1500 now, how it even breaks the sound barrier. Some people think its because it has a supersonic engine, no. Now it goes soooo fast you dont hear the sonic boom until about 5 seconds after. thats what breaking the sound barrier is.

  • That didn't make any sense

  • lol

  • LOL ;)

  • >.> 101. Im 1337. LEET FTW!

  • I am interested how can they break the sound barrier? If somebody know how

  • anything that accelerates beyond about 715 mph will break the sound barrier.

  • i thought it was anything that accelerates at 300mp. i think 300 miles reaches the sound barrier.

  • Jet Airliners exceed 300mph. 715mph depending on altitude.

  • Thats AWSOME!!!!...although where was the boom...

  • He didnt actually break the sound barrier...they're not allowed to at airshows and over populated areas..

  • yeah thatd blow up everyones heard from pressure and high volume of sound!!! xD

  • so then where does the cone come from?

  • This type of vapor denotes an aircraft approaching the sound barrier, but not necessarily past it. It's called a PrandtlGlauert singularity.

    The vapor cones appear before the plane crosses the sound barrier. It comes from disturbed air that's creating low pressure areas. It's similar to the vortex vapors off of wingtips and other parts of the aircraft in heavy maneuvering.

  • Some cool planes in this vid, great to watch. Shame all these planes do is bring death, destruction and devestate lives.

  • DAMN!!

    These planes must have insane vtec!!!!

  • Wonderfull toys eh

    Amazing show ;)

  • Condensation or breaking the sound barrier it doesnt to me the video was pretty cool. Allthou i wouldve liked to hear the sonic boom ;)~ and not just see the graphic of it.

  • a sonic boom is when the air velocicty and air mass seperates air usually when you go 760 mph or faster

  • actually the speed can very depending on the weather and altitude normally it happens between 646 and 720 miles an houe =D

  • 1. The "smoke" you are talking about is condensation from low pressure

    2. Condensation can occur outside of supersonic flight (ie a high angle of attack)

    3. There can be supersonic airflow even at subsonic speeds (transonic)

    4. Ive seen an F15 accidentally break the sound barrier at an airshow, it is NEVER done on purpose for several reasons a. Mach Tuck - low altitude b. Broken Windows c. can cause bodily injury from pressure wave if too close to the croud

  • Thank you for explain me ;)

    Anyway it's a nice video.

  • smoke? condensation? its the air barrier thing, when air is pushed around the aircraft

  • yeah but u wouldnt need to during an air show

  • The cone is condensed moisture from low pressure created from being close to the speed of sound. Being at the speed of sound would look like a much finer larger cone.

  • that is NOT supersonic flight. just condensation.

  • learn somthing jackass u cant break the sound barrier over a residential area the smoke is compressed air

  • OMG, it is not smoke, it is water. Check out the Mollier diagram...

  • Actually you can break the sound barrier over a residential area if you absolutely need to for some reason.

  • I always thought that if you see the cone in which case if the plane doesn't pass through it, it wont create a sonic boom. I think in order to hear the sound in that case the plane would have had to pass completely through the cone to create the sonic boom but they said they wouldn't do a sonic boom.

    that is why the plane dind't pass through....whew

  • kl vid nice super hornet =D

  • You won't get a sonic boom until you exceed the speed of sound which varies at different altitudes. At sea level the sound barrier is 742 miles per hour. A sonic boom produced at the altitude this F-18 is flying in the video would shatter windows so the poster of this video falsely added Sonic Boom to the title as there IS NO sonic boom in this video.I'm sure he got the counts he wanted on his video post though sort of like those people who label the title "MUST SEE" to increase the hit count

  • i didnt hear a sonic boom

  • Aus better get these air craft they better not scarp the deal.

  • wow, i never knew the f 18 could hover like that

  • the trick 2:56 was awesome. Amazing control

  • Yeah going really fast is cool. But just as cool is how slow that thing could go without falling out of the sky!

  • if you can see that cone of air, which you can see in this video, it means that the jet is breaking the sound barrier

  • The airplane is in the transonic range and not quite supersonic. As the aircraft approaches the speed of sound, airflow is supersonic over portions of the structure, causing the vapor you see.

  • Ja. Thanks for the technical explanation.

  • who cares that was awesome nice video

  • That's not a sonic boom by the way. Notice no "boom"

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