Keeping MAX quiet - Chevrons.

शेयर करें
एम्बेड करें
  • 22/06/2018 को प्रकाशित
  • -15 minutes of free English tutoring: www.cambly.com/invite/mentourjun
    -10% off any Cambly plan: www.cambly.com/invite/mentour10 (valid 2 weeks from 22/06/18)
    I am sure you have seen the new LEAP engines that are fitted to the Boeing 737 MAX aircraft. If you have seen them I am also sure that you have seen that the engines looks "jagged" towards the back. These jagged dges are called CHEVRONS and I will be telling you the fascinating story behind them and many other wondrs of the modern Jet-engine in this video.
    www.mentourpilot.com
    If you want to join me in the chat afterwards, make sure you have downloaded my FREE mobile app. Use the links below 👇🏻
    📲IOS: appstore.com/mentouraviation
    📲Android: play.google.com/store/apps/details?id=com.teamta.mentouraviation
    If you want to join my Patreon crew and support the channel, use this link: www.patreon.com/mentourpilot
    A huge thank you to the channels which are featured in this video. Without your great content I would have a hard time explaining my points.
    AIRBOYD
    inclips.net/video/XLRSUO2dRyY/वीडियो.html
    inclips.net/channel/UClyDDqcDsXp3KQ7J5gyIMuQ
    Mathaderlie
    inclips.net/video/837tjPv4iys/वीडियो.html
    inclips.net/channel/UCB_F3ZDM-QPWk0BLbD1l7oA
    Boeing
    inclips.net/video/nmefnkTvWIw/वीडियो.html
    inclips.net/channel/UC9IEkprr46ScglWU79HF5qQ
    Stanford university school of engineering
    inclips.net/video/cjoz5tncRUs/वीडियो.html

    MiamiAirborne
    inclips.net/video/Db1u6I_lukU/वीडियो.html

टिप्पणियाँ • 1 061

  • Luca Detomi
    Luca Detomi 2 दिन पहले

    Very nice explanations (as always) but for example Airbus did not choose this solution for its new aircrafts, especially A350XWB. They considered the gain in less noise, not comparable to loss in effciency (they should considered too minor insulation, but probably... not so evident in final results)

  • Xollion
    Xollion 6 दिन पहले

    I live in Würenlos AG in Switzerland, At night there fly 3/4 mega loud airplanes over What kinda plane is that? ( always at around 11:45 )

  • SuperbHolidays
    SuperbHolidays 16 दिन पहले +1

    Get on with it

  • Siveshan Chinappa
    Siveshan Chinappa 20 दिन पहले

    Excellent

  • Science
    Science 21 दिन पहले

    How about a video on how airplane manufactures can still regulate themselves even when planes are falling from the sky.

  • Danny Stratyys
    Danny Stratyys 26 दिन पहले

    Thanks for your videos! I love learning about these things! (Subscribed!)

  • Travis Ryno
    Travis Ryno 27 दिन पहले

    Only a true loser would move in next to an airport then complain about the noise.
    I have trouble even imagining a person who would do that....but if you're out there,, know that you are the epidemy of the phrase "first world problems".
    ...that just had to be said.

  • suhail1452
    suhail1452 महीने पहले

    KILLER PLANE SWALLOWED 350 PRECIOUS LIFE----GROUNDED GLOBALLY.

  • Ben Braceletspurple
    Ben Braceletspurple महीने पहले

    The teeth of a man eating monster.

  • 200K
    200K महीने पहले +1

    i love me some *C H E V R O N S*

  • xeriscape 1
    xeriscape 1 महीने पहले

    Your channel makes time spent on INclips worthwhile.
    Many Thanks.

  • Elli P
    Elli P महीने पहले

    I was once lucky enough to be outside at Heathrow when Concorde took off. I know there are noisier aircraft - probably exotic, angry military ones; and a space rocket launch is a shattering assault on the senses - but rocket launches are necessarily miles away for safety reasons, and military aircraft don't often perform 'in public'.
    Concorde was a commercial passenger jet. Hearing and FEELING it up-close at full chat was an unforgettable experience.

  • AudiophileTubes
    AudiophileTubes महीने पहले

    I miss the unmistakable sound of those vintage TWA and Olympic Airways Boeing 707's we used to take to Greece (from NYC) back in the 60's and early 70's! Those jets sounded incredible! Just like the vintage 2-stroke motorcycles sound better than the 4-stroke!

  • mars saviour
    mars saviour महीने पहले

    I hated going to class as an Aeronautical Engineering student because my lecturers suck. they don't know how to explain common Aeronautical concepts but if you were my lecturer I'll come to your class everyday.

  • Kage Krôss
    Kage Krôss महीने पहले

    Months later it crashed. All because of the new heavier engines.

  • DMX 10033
    DMX 10033 महीने पहले

    Which is noisier, 737 Max or A320 NEO?

  • gopjr007
    gopjr007 महीने पहले

    wow he cute

  • Tomer Obligenarz
    Tomer Obligenarz महीने पहले

    Hi, do you know why they cancelled the chevrons for the 777x?

  • Seattle fire dept firefighter roblox
    Seattle fire dept firefighter roblox महीने पहले

    The engines in the Boeing 737-max 8 are the same from the Boeing 787 dreamliner

  • Sun Shine
    Sun Shine महीने पहले

    There is a lot more than just simple noise. I could not believe that it is linked to efficiency. I have learned a lot from you. Thank you.

  • Bill Bright
    Bill Bright महीने पहले

    Carbon fiber,, a big factor in modern aircraft, strong and light weight and ability to be formed into virtually any shape.
    The C-5 Galaxy had a very unique whirring sound from its four turbo fans.
    A program hampered by the ridiculous mandate for forward rough strip capabilities.
    An aircraft of this size is for hard runway use and to design otherwise forces cost overruns and diminishes the craft overall.
    It’s high by-pass type turbo fans really were the genesis of the airline engines in use today, incredible thrust with low noise and good fuel economy.
    Noise reduction is fine but never to the detriment of safety.
    .

  • william foreman
    william foreman महीने पहले +1

    I’ve also noticed helicopters are much quieter these days life flight flies over our area quite often where we live it’s almost a direct route north and south to two different hospitals they use and you can’t even tell one of those life flight choppers are coming until their right up on your house practically,,,,years ago you’d hear the distinctive thud thud thud as they chop their way through the air from miles away,,,, I guess these days everything is more fuel-efficient and quieter greener....

  • william foreman
    william foreman महीने पहले +1

    Pretty cool 😎

  • Ivanaldo Júnior
    Ivanaldo Júnior महीने पहले

    Amazing explanation. Congrats.

  • Sam Lutfi
    Sam Lutfi महीने पहले

    why does anyone subscribe to this crap? every video is over 10 mins purposely so he can fit two revenue commercial streams. so half of this is just fluff

  • Howard Tran
    Howard Tran महीने पहले

    Thank you for your educational videos. I have learned a lot about airoplanes.

  • Mark Szakos
    Mark Szakos महीने पहले

    Perhaps the manufacturing engineers can design a dynamic trailing edge on the jet engine. One where the chevrons are present at lower altitudes, where thrust and noise generation is high, and a 2nd configuration where the chevrons are not present, for high altitude, and low thrust levels. The lack of chevrons would yield less drag and lower fuel burn.

  • AB G
    AB G महीने पहले

    I run a tiny pharmaceutical business. However have always loved planes since childhood. This guy always motivates me to reconsider my options :DD

  • magic wand
    magic wand महीने पहले

    747 .,,,old or newest models ... remains the Queen of the air PERIOD ! and if it's ain't Boeing i ain't going ! Simple as B-O- IN

    • shannonflyer757
      shannonflyer757 महीने पहले

      +magic wand yeah they will get that fixed and they'll be flying it (no pun intended)

    • magic wand
      magic wand महीने पहले

      +shannonflyer757 they'll be up in the air pretty soon ...just like every clean sheet projects, takes sometime to get right and last lifetimes ..
      Do you know some things about 6.0 international in Ford trucks ? ... at intro in 2003 ... well we've perfected the shortcomings now and they are on top

    • shannonflyer757
      shannonflyer757 महीने पहले +2

      Say that about the 737 max (they're grounded)

  • Spawn
    Spawn महीने पहले

    This plane grounded around the world. Too bad to see this awful situation for aviation.

  • treschlet
    treschlet महीने पहले

    Just a note on decibels... 3 decibels is DOUBLE the energy. Or rather, a reduction of 6 decibels is a 75% percent reduction in sound energy! This is REAL huge. It doesn't sound like that much because human hearing is very, very subjective, such that it requires around a 10 decibel change in SPL (sound pressure level) to subjectively sound like it's "twice as loud." But from an engineering perspective, a 6db decrease is massive, particularly when it comes to sound damping. You can imagine, now, why they would be able to remove a lot of sound-absorbing material from the plane, since that material only needs to deal with 25% of the sound energy that it used to have to deal with.

  • Rabbi Glickman
    Rabbi Glickman महीने पहले

    Never forget! Never forgive!

  • dzjahrk
    dzjahrk महीने पहले

    He says it in min 7:32

  • CitizenSnips
    CitizenSnips महीने पहले

    Just a note if it hasn’t been brought up, decibels are on a logarithmic scale, such that six decibels off a loud sound is more than six off a quiet one. A lot more. There is a logical explanation for why but it’s not easy to describe succinctly, but basically the decibel is the minimum change in sound we can perceive at a given volume. If you play a sound and increase volume in less than one decibel intervals, then you won’t notice the sound getting louder.

  • Mike Hewitt
    Mike Hewitt महीने पहले

    He goes on about learning English and then has a screen caption using the word available spelt incorrectly (he has 3rd a as an I). I hope that he uses all the available technology, like auto pilot, when he flies his planes.

    • CitizenSnips
      CitizenSnips महीने पहले

      Mike Hewitt captions are either automated or outsourced usually. Most captions on INclips videos are terrible because you have to pay for a quality captioner. Around a dollar a minute.

  • Wayne John Hinrichsen
    Wayne John Hinrichsen महीने पहले

    People became more full of shit, so they complained about the noise!!!

  • Xeno Sys
    Xeno Sys 2 महीने पहले

    cool pilot :) a lot of things can learn from you! thank you!

  • Kustom '49
    Kustom '49 2 महीने पहले

    I always look at things (such as these spiffy new engines) and ask myself, "Why is it designed in that manner?"
    Thank you for further educating me on this and a variety of interesting topics.

  • Gabo H
    Gabo H 2 महीने पहले +1

    there is a better way to keep them quiet, just ground them

    • larry tornetta
      larry tornetta महीने पहले

      Gabo H AOC the green new deal.
      The Green New Deal legislation laid out by Rep. Alexandria Ocasio-Cortez and Sen. Ed Markey sets goals for some drastic measures to cut carbon emissions across the economy. In the process, it aims to create jobs and boost the economy.
      "Overhauling transportation systems" to reduce emissions - including expanding electric car manufacturing, building "charging stations everywhere," and expanding high-speed rail to "a scale where air travel stops becoming necessary";
      She wants to do away with airplanes. She thinks everyone lives in NYC.

    • Gabo H
      Gabo H महीने पहले

      +larry tornetta AOC?

    • larry tornetta
      larry tornetta महीने पहले

      Ok AOC

    • owtena
      owtena 2 महीने पहले

      LOL!
      Unfortunately they killed 2 planes full of people... :'(

  • 69Phuket
    69Phuket 2 महीने पहले

    Pretty obvious really.. Stealth Tech.
    737 Perfectly Good Plane..Move some fat engines forward and strut up the front gear with Mechano.
    Make it unlike any 737 before but...Shhhh! ( Don't tell the Germans...or anyone) Unstable plane that reacts like no previous 737 flown before.. It's a NEW plane. But Boeing ran out of numbers!

  • Sami Omar
    Sami Omar 2 महीने पहले

    Hello Mentor pilot I've lost my aunt on the max 8 ethiopian flight and that's why I'm watching every video related to that aircraft, and I'm sorry to say you're completely ignorant just like me and alot of ppl since we trusted corporations.
    Rip my aunt K.

    • Kustom '49
      Kustom '49 2 महीने पहले

      Why is he ignorant? I'm very sorry for your loss, but you're ignorant for making a baseless statement like that. He has nothing to do with the design of the Max8.

    • FPV_Arthur
      FPV_Arthur 2 महीने पहले

      I hope your joking

  • igoralc
    igoralc 2 महीने पहले

    5:33 Varig, Varig, Varig!

  • Shrek Overlord
    Shrek Overlord 2 महीने पहले

    Is it me or did that 737 just pull a 65 degree rotation

  • Anton
    Anton 2 महीने पहले +1

    They make the plane lighter so its less likely to stall and fall from the sky

  • Bob Freestone
    Bob Freestone 2 महीने पहले +8

    As a former British Navy and Army Instructor Officer, I say with some authority, your instruction technique is of a very high order indeed. Thankyou.

    • Elli P
      Elli P महीने पहले

      Yes indeed. There's an unspoken convention that airline pilots are required to speak like Petter. It inspires tremendous confidence when one's pilot doesn't sound like a stoned surfer, Beavis, or Butthead. To wit:
      "Yeah, like, we're, y'know, huh-huh... Cool! Dude, we were like BOOOOOM and the jet things were totally WHOA!!! So, anyhoooo, huh-huh, they cut this sorta HOLE stuff, no, I mean, like pinking shears, y'know? It was well radical 'cause... Um... OMG! I like totally screwed that up!!! Hey, everybody pose for a SELFIE!!! Yaaaaaay!!!"
      Ahem. Quite. Thank you for flying Elli Airways...

    • 69Phuket
      69Phuket 2 महीने पहले +1

      Easy now...! Brexit = Potential war again.. Hope i'm joking!

  • Komputar
    Komputar 2 महीने पहले +5

    So, is this engine silencer "modification" causing these MAX to fall off the sky?

    • shannonflyer757
      shannonflyer757 महीने पहले

      If it's not there it can't break things

    • shannonflyer757
      shannonflyer757 महीने पहले

      +zokonjazokonja yeah you are spot on correct. Without the engines being moved, there would be no MCAS so there would be no crashes caused by the MCAS system

    • zokonjazokonja
      zokonjazokonja महीने पहले

      +shannonflyer757
      And all this things would not happen if engines did not mounted on "wrong"place casing too much pitch moment.
      If engines could fit in normal position, MCAS would not be needed, no MCAS - no bad installation of MCAS, no problem. So yes, engine installation on B737MAX is root cause of the problem.

    • shannonflyer757
      shannonflyer757 महीने पहले

      +Mark Moreiras it was caused by a faulty sensor that then showed incorrect data which then triggered the mcas system and the pilots couldn't ovarride it which led it into a steep nose dive straight into the ground

    • Mark Moreiras
      Mark Moreiras महीने पहले

      No
      It was a faulty sensor, poorly designed software, and a lack of training for pilots on changes from previous 737 models

  • Robert Gaylord
    Robert Gaylord 2 महीने पहले

    Hey mentour! How does Atc in Europe know when to turn each type of plane on its base leg so I can catch the glide slope if they can’t level off. I know this is easy to do from the cockpit but how does Atc know?

  • CRAYONS ENGLISH
    CRAYONS ENGLISH 2 महीने पहले

    Fascinating info. I knew a few things about this topic already, but you added some excellent knowledge. The Chevron thing also reminds me of a video I saw about high speed trains in South Korea. They designed the exit to the tunnels to be kind of like these chevrons. The effect was to reduce the noise of the pressure wave that the high speed train builds up in front as it travels through the tunnel.

  • Nathan Deane
    Nathan Deane 2 महीने पहले +1

    Great video but didn’t get 2 chevrons until 3/4 of the way in.

  • Dennis Donovan
    Dennis Donovan 2 महीने पहले +2

    When NASA was studying ways to reduce turbofan exhaust as well as wing trailing-edge vortex noise back in the 70s/80s they made a detailed profile of the feathers of “silent fliers” - primarily owls - and found that there were structural forms, both macro as well as micro, that contribute directly to “noise reduction”. These “chevrons” are an engineering translation of those principles.

  • 박준성
    박준성 2 महीने पहले

    Always so good to see your videos! You are my REAL AVIATION MENTOUR!

  • Rudi Chinchilla
    Rudi Chinchilla 2 महीने पहले

    Where s your pet?

  • George Ramirez
    George Ramirez 2 महीने पहले

    Great explanations love your videos mentour

  • northy Land
    northy Land 3 महीने पहले +1

    IF you don't want to hear aircraft all day, don't buy a house next to an airport! People are so stupid sometimes.

  • Jorge Echauri
    Jorge Echauri 3 महीने पहले

    Great! Excellent explanation

  • NONPARASAN Aero 113
    NONPARASAN Aero 113 3 महीने पहले

    Proud to be a Aeronautical engineer 😙😎😎😎

  • Projjwal Ray-6
    Projjwal Ray-6 3 महीने पहले

    I'm curious if every pilot is also required to be an expert in the area of physics in general and fluid/aero-dynamics in particular by the regulations? Because their grasp of the underlying principles seem to be quite comprehensive.

  • Stan Watt
    Stan Watt 3 महीने पहले

    A few years ago I watched program about aircraft engines. One aircraft had two rear jet engines that each had two propellers that moved in opposite directions to give added thrust. I still haven't seen them on any planes, anywhere. Are they still being tested or have they been dumped?

  • Golf Foxtrot
    Golf Foxtrot 3 महीने पहले

    isn´t it so that the bigger vortex created by a normal engine needs more energy then the controlled and much smaller vortexes created by chevrons?

  • Roger Nevez
    Roger Nevez 3 महीने पहले +3

    1:06 Is this an operational takeoff or a high performance one for demonstration purposes? The climb rate seems very aggressive ...

    • Shuntsam2
      Shuntsam2 महीने पहले

      Boeing pilots' demonstration of the then new MAX8 possibly at Oshkosh 2016 Air show.

  • Ryan Walker
    Ryan Walker 3 महीने पहले

    i live west of portland airport. everything is quite after 8 F-15s takeoff

  • null
    null 3 महीने पहले

    specific like

  • MeTube
    MeTube 4 महीने पहले

    Aviation English teachers availAble :)) not availible :P

  • Michael H.
    Michael H. 4 महीने पहले +1

    The CHEVRONS have never "looked nice" to me, so I do not know where he gets that "opinion".

  • Naison Ingwani
    Naison Ingwani 4 महीने पहले

    you are in love with b737

  • Papai Urso
    Papai Urso 4 महीने पहले

    -6 dB is 50% reduction, it is quite a lot.

  • HUGO CHAVEZ
    HUGO CHAVEZ 4 महीने पहले +2

    DO THOSE CHEVRONS COME WITH TECHRON?

  • Ian McGreevy
    Ian McGreevy 4 महीने पहले +1

    Hey, Mentour ,
    Your cushions are runway-end threshold marking stripes !
    (Nicknamed the piano keys)

  • Dennis Weifenbach
    Dennis Weifenbach 4 महीने पहले +1

    You have a very heavy accent and speek way too fast. Slow down. You have a lot of interesting information that is lost in having to backtrack in you video to relisten to understand you.

    • Dennis Weifenbach
      Dennis Weifenbach 4 महीने पहले

      Sorry, I've never heard of English level 6, maybe that is something in your native country. As you video goes on you seem to slow down a bit and isn't as bad. But in the beginning it is terrible and because of that I did not listen too long. My English skill? You twit. Trying to listen to and understand accents is not part of English skills. How defensive can you get. I will just not watch any more of your postings.

    • Mentour Pilot
      Mentour Pilot  4 महीने पहले

      Really? I speak at English level 6 (of 6) and I have been told that my accent is hardly noticeable. I know this since I am a English language assessor myself. :)
      I will try to speak slower but there is a possibility that the problem here lies more in your English skill, keep working my friend.

  • Chasp_0
    Chasp_0 4 महीने पहले

    Nangs

  • E Dew
    E Dew 4 महीने पहले

    vortices* fify, love the vids!

  • dungoist
    dungoist 4 महीने पहले +1

    Looks like a cracked egg

  • Commentator541
    Commentator541 4 महीने पहले

    yet = jet

  • Keyhan Hadjari
    Keyhan Hadjari 4 महीने पहले

    Cool invention.

  • Beagle76
    Beagle76 4 महीने पहले

    Where are the dogs, just joking. I love his dogs.Remember watching a Fokker F-28 taking off from Sydney in the early 90’s. He must have been heavy because the noise levels was horrendous. The F28 was powered by RR Spey’s from memory which was an old engine at the end of its life at the time.

  • ablamboo
    ablamboo 4 महीने पहले

    All good general information but to answer the question why there are chevrons behind jet engines, a one minute video (or a one-sentence paragraph) would have been sufficient!

  • Diamond Cutter
    Diamond Cutter 4 महीने पहले

    Interesting.....so am I right when I say that a jet is actually propelled by theory (Newton's 3rd law)?

  • John Quill Taylor
    John Quill Taylor 5 महीने पहले

    Why is a 350 hp luxury car so damn quiet, you almost can't tell if it's running or not, even while standing right next to it, and yet apparently, they cannot invent or design a quiet weed whacker, leaf blower, or lawn mower? - j q t -

  • vayalobo
    vayalobo 5 महीने पहले

    6 decibels (6dBA) on a logarithmic scale (the one used to plot noise levels) are by far not negligible. Great and very instructive video Mentour Pilot.

  • Gonzalo Alvarez
    Gonzalo Alvarez 5 महीने पहले

    5:34, according to some friend, (if not remember wrong) a group take a picture in front of the engine (perhaps as the man in the picture but seat in the border) they all fired.

  • Wazze Mazze
    Wazze Mazze 5 महीने पहले

    Let's be honest here, it's not that advanced.

  • Claire Farron
    Claire Farron 5 महीने पहले

    very interesting, thank you

  • Andrew James
    Andrew James 5 महीने पहले +1

    Is that why fighter jets have more nose because there is little to no bypass

  • Andrew James
    Andrew James 5 महीने पहले +1

    Houses next to airports should be reserved for more committed aviation enthusiasts and pilots

    • George Hotaling
      George Hotaling 29 दिन पहले

      Andrew James If you build an airport in the middle of nowhere, I can guarantee that a developer will build houses right up to the fence and the homeowners will complain about noise. They have absolutely no complaint as they bought the house knowing the airport was already there. It is the same as buying a house next to a busy interstate highway.

  • vertik7
    vertik7 5 महीने पहले

    And still, the planes fly as slow as 50 years ago.

  • David Rigoni
    David Rigoni 5 महीने पहले

    Nice explanation What caught my attention was the camera angle on that jet taking off at the beginning . Looked like it was going straight vertical. All under seat carry on can now be found at the rear of the aircraft

  • Dmitry Kim
    Dmitry Kim 5 महीने पहले

    tyrant Pilot

  • Arturo Olvera
    Arturo Olvera 5 महीने पहले

    This is a great explanation, also gives a bit of insight into the complex balancing act that is aircraft design and aeronautical engineering.

  • Spanky Harland
    Spanky Harland 5 महीने पहले

    thanks for your informational videos- I am always learning something new in the aviation world because of you !

  • Mr. T.
    Mr. T. 5 महीने पहले

    This guy needs to take his own advice and take some English courses with a tutor. He talks like he's chewing on his tongue

  • White Mail Privilege
    White Mail Privilege 5 महीने पहले

    Your hand motions really help me understand the subject matter

  • Rob Chambers
    Rob Chambers 6 महीने पहले

    I've been kind of binge-watching your videos and have been really enjoying them. I love aircraft but, unfortunately, I have a terrible phobia where flying is concerned and so I never get to fly anymore. I used to love flying but I developed a phobia almost overnight, and for no particular reason. I have not flown since October 1984. However, that's a different story and not the reason for this comment. The advert you have concerning your sponsor mentioned English skills and there is something that I have noticed in quite a few of your videos. Now I can tell that you have an accent and that English is probably not your first language but I still wanted to point this out to you. Please don't be offended, I am just trying to help.
    The thing I have noticed is when you talk about a vortex. When you use the plural form you call them vortexes; this is incorrect. The correct word for the plural of vortex is 'vortices' (pronounced vor-ti-ceez), not vortexes. It's like the word 'index; the plural of index is indices (pronounced in-di-ceez), not indexes. I have seen and heard both vortexes and indexes used but that seems to come from Americans and we all know what they are doing to the English language. :p
    Anyway, this comment isn't meant to have a go at you or to troll you, it's purely to help you with the correct use of English (as opposed to American-English) so please don't take it the wrong way. Okay, now I am going back to watching your videos. :)

  • Cilok 8108
    Cilok 8108 6 महीने पहले

    🙈🐣👌🙏😹🙊😘✌...

  • Jay Nolan
    Jay Nolan 6 महीने पहले

    I guess this would be the same pros and cons for military aircraft. Possible stealth application? But less thrust. When it all boils down in war and saving your ass or your comrades. I could care less about ppl being disturbed by my engines. Does the B-2 use something similar?

  • Red Rooster
    Red Rooster 6 महीने पहले

    Its sad that we get less aerodynamics and less safe all because people are too damn sensitive to noise. If you dont like the sound dont live so damn close to the airport.

  • Yosef MacGruber
    Yosef MacGruber 6 महीने पहले

    Use anti-gravity wave propulsion, like on _The Jetsons_ futuristic cartoon. Produces the least amount of noisy vortexes.

  • Chandan Kishore Chutia
    Chandan Kishore Chutia 6 महीने पहले

    Thanks for this video. I was too confused when Rolls-Royce introduced these structured engine as the more efficient one. I was aware of it's decreased aerodynamics which is not at good for fuel economy? ..... It's turns out that your heavy sound insulators were the missing link that cause my confusion.

  • Bradley Pool
    Bradley Pool 6 महीने पहले

    Just a quick question, what jet aircraft has three big steady white lights underneath and a flashing red light right in the middle underneath?
    It flew right overhead tonight in the middle of the night, very slow with a low fairly quiet jet noise and about less than a kilometre high, it seemed quite close to the ground and only moving very slowly.
    The white lights were in a straight line underneath adjacent to direction of travel and the big red light flashing next to the middle light. I'm not sure if I could make out the red and green right /left lights usually on the wing-tips and there weren't any of the white strobe lights you usually see. I couldn't see its shape in the dark, just the lights.
    There's no airports close to my location, only about 6-7 kilometres away on the other side of the rural city where I live. But it was flying west to east and not towards or away from the airport. That's south of my location. It disappeared slowly in the east.
    I'd love to know what kind of aircraft it was because it was so different with that low toned jet noise that seemed uncharacteristically quiet for something that seemed so low to the ground. Plus it was a dead calm night and almost clear sky apart from some high cloud cirrus.
    Are there any aircraft that have this light configuration underneath because I was starting to think I was seeing a ufo???
    I've seen heaps of jets at night and they always seem the same with flashing strobe lights and green and red directional lights but I've never struck the big red light flashing every second on the underside right in the middle between two big white lights. And by big I mean they seemed to have a large surface area like the actual lights were large and bright but not blinding so much that you couldn't make them out. They were easy to look at the red light was the brightest of them all and the last light to disappear in the eastern sky. The white lights were steady only the red one flashed about every second.

  • Silas Eat
    Silas Eat 6 महीने पहले +1

    Did anybody else see that quite steeped takeoff in 1:00? Ma man...

  • Mr. Meow Meow
    Mr. Meow Meow 6 महीने पहले

    Also new Russian airplane and Chinese plane have same look . I wondered why ... ty for info .