WHY is there a SPIRAL in a JET ENGINE? Explain by CAPTAIN JOE

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    Dear friends and followers, welcome back to my channel, clarifying another great question. Why is there a spiral or swirl in a jet engine?
    The primary reason for painting designs on engine spinners is for the safety of ground personnel. Working near a running jet engine is extremely dangerous. For example, a Boeing 737 engine, running at idle power, has a hazard zone of 9 feet to the front and sides of the engine. This means that, even at idle thrust, a human that walks within the hazard area or any loose objects, risk being sucked up into the engine. When the engine is above idle thrust, the hazard zone increases to 14 feet or more. Not to speak of the even larger hazard zones of a B777 for example. Therefore it´s absolutely critical that ground personnel can identify a running engine and stay away from it.
    Even though jet engines are incredibly loud, a running engine may not be obvious to ground personnel. Airport aprons often have several aeroplanes in close proximity with engines screaming next to each other. Therefore ground personnel have to wear hearing protection to suppress the deafening noise. Making matters worse, it can be hard to see that an engine is running, especially during night-time operation, as the black and grey fan blades become translucent when they´re spinning.
    Therefore spinning spirals make it a lot easier to identify a running engine. Besides that, ground personnel can check if the aeroplanes´ red anti-collision light is still flashing. This indicates that pilots have received their start-up clearance and will start the engines very soon. On arrival at the gate, the light is turned off by the pilots after the engines are shut off and „spiral“ down, after which it is safe to approach the engines from either side.
    For the same safety reason, the tips of propeller blades on propeller-driven aeroplanes like the Dash Q400 are painted in bright colours, to be more visible to the human eye. You won´t believe how many incidents have happened in the past involving jet engines and ground personnel.
    Do they scare away birds? That and more information in the video!
    Thanks for watching, all the best your "Captain" Joe
    Big thank you to my fellow youtubers providing me with there great video material.
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  • विज्ञान और तकनीकविज्ञान और तकनीक

टिप्पणियाँ • 2 214

  • subscribe to pewdiepie
    subscribe to pewdiepie 3 दिन पहले +1

    im in a airport and about to go to manila and suddenly i see a plane with a spiral

  • Irritated Camel / Roblox Stuff!
    Irritated Camel / Roblox Stuff! 4 दिन पहले

    Lmao I love how he says ah pas troff

  • Wildlife / supernanny fan 1355848
    Wildlife / supernanny fan 1355848 6 दिन पहले

    Let's get spinnin' !!

  • Daniel Dapun
    Daniel Dapun 7 दिन पहले

    How about just fully paint the blades to white. Or paint a pattern. That might avoid birds getting attracted to go there

  • Wildlife / supernanny fan 1355848
    Wildlife / supernanny fan 1355848 16 दिन पहले

    What planes have the horse shoes spiral??

  • Power of Dankness
    Power of Dankness 17 दिन पहले

    Philippine Airlines Inbound.

  • TheWhiteFox9 Cruz
    TheWhiteFox9 Cruz 22 दिन पहले

    To be honest, you’re one of the only youtubers that have a smart logo.

  • Simon U
    Simon U 22 दिन पहले

    I didnt know Frank Lampard was a pilot

  • Etihad 010
    Etihad 010 24 दिन पहले

    captain joe, what airline do you fly with

  • Ebraz El Mahz
    Ebraz El Mahz 24 दिन पहले

    First I appreciate UA effort posting very helpful videos but I have a question sir
    What is name given to the that man standing Dash Q 400 and what is his work?

  • Max Noerenberg
    Max Noerenberg 26 दिन पहले

    talking about bird impact on jet engines.......I wonder if the designers ever thought of putting up a net of small mash grill in front of the spinning turbine, to prevent anything getting sucked in.

    The air would still gets sucked into the engine to produce thrust, but nothing else.

    I know its an enormous thrust those engines produce, but if the net / grill is securely fasten it might not get sucked into it!

    I wonder???

  • black widow
    black widow महीने पहले +1

    6 and a half minutes to tell us which way the engine spins

    • POF415
      POF415 महीने पहले

      black widow 🤨🙄

  • Lambo Veneno
    Lambo Veneno महीने पहले


  • Forphy4 life
    Forphy4 life महीने पहले

    The bf109 has spiral on the engine

  • R Coyote
    R Coyote महीने पहले

    I worked on jets engines (overhaul)...i'm amazed it's only 9 feet for a 747 engine on idle! I hated cleaning bird strikes... The smell is bad, not to mention the caked flesh and blood! If it was a human... forget it, I quite!

  • Ethan Riley
    Ethan Riley महीने पहले

    The real purpose of the swereal is that now but originality it was used in wwii to confuse enemy fighter pilots in dogfighting and that’s what they thought it would do but NOPE

  • Christopher Dibbs
    Christopher Dibbs महीने पहले

    The way he pronounced "apostrophe"...

  • QuarioQuario54321
    QuarioQuario54321 महीने पहले

    What if we used one blade a different color than the rest?

    YUNG SHAGGER महीने पहले

    It's like that so birds don't fly into them. The spiral looks like an Owl's eye to a bird and that makes the bird want to go away from the "owl".
    I'm saying this at the beginning of the video and I want to see if he mentions it. :)

  • loraine murray
    loraine murray महीने पहले

    Do you work for Amsterdam airport

  • LeBlur
    LeBlur महीने पहले +1

    why not paint the blades different coulours, if birds go into black holes dont make a black hole

  • KiyokaMakibi
    KiyokaMakibi महीने पहले

    If the bird is attracted to the engine because it resembles a black hole, can't they paint the blades a brighter or neon colour?

  • Jason McBeavis
    Jason McBeavis महीने पहले

    White male pilot or you won't survive it!

  • Jeff Eishen
    Jeff Eishen महीने पहले

    Captain Joe has only three stripes though

  • Syed Hashmi
    Syed Hashmi महीने पहले

    The commer is on the airbus beluga I think

  • Roadster Gaming
    Roadster Gaming महीने पहले

    What Name Of Horseshoe Engine Spinner/swirl

  • Raph Spierings
    Raph Spierings महीने पहले +5

    I saw the comma in real life

  • CallMeHazard
    CallMeHazard महीने पहले +1

    Why don't paint the turbines white?

    • 素裹吗Levii
      素裹吗Levii महीने पहले

      If it's spinning fast enough it will probably harder to see

  • Eric in Florida
    Eric in Florida महीने पहले

    Used by fortune tellers? I think you mean hypnotists. Good video though.

    BETTA FISH महीने पहले

    Wow Philippine airlines

  • Felipe Estopado
    Felipe Estopado महीने पहले

    *2:08** Philippine Airlines*

  • Tommy Chilldog
    Tommy Chilldog महीने पहले

    Why is the $ sign after the digits ? $40 not 40$

  • J.K. Benedict
    J.K. Benedict महीने पहले

    I just found your channel! Thank you so much for your explanations as, due to a heart/ear condition I cannot fly, I am fascinated by the topics you have raised. After a HORRIBLE landing in ATL (Hartsfield) by a co-pilot, I have to ask what your "worst/most embarrassing" experience as a new pilot?

  • halmc
    halmc महीने पहले

    If the spinner were incorrectly painted with a left hand thread, would the plane back up?

  • Maricel Celzo
    Maricel Celzo 2 महीने पहले

    I saw an philippine airlines

  • Ahmed Hisham
    Ahmed Hisham 2 महीने पहले

    why don't they but a grid in front of the fan engine like our home fans to prevent birds from entering ?

    • ImAFlyingOreo Gaming
      ImAFlyingOreo Gaming 2 महीने पहले

      Because it would slice the bird in half and would still make an emergency

  • Tutorial Videos
    Tutorial Videos 2 महीने पहले

    Boli I look like a burnt chicken nugget. Best explaining so far!!!

  • Skyfall
    Skyfall 2 महीने पहले

    I can make nuce smoothie in those turbines 😬

  • Arun Ajay
    Arun Ajay 2 महीने पहले

    Thanks joe it helped me a lot

  • EntoSanto
    EntoSanto 2 महीने पहले

    Horseshoe looks like a Sharingan which is way too cool. :P

  • Sandro Diclemente
    Sandro Diclemente 2 महीने पहले

    Thank you, that was so helpful, I often wondered if the spiral has a purpose other than looking cool, as part of the design. It have to say, it has been just the last few years that I have. Noticed then being used on commercial aircraft. I am very observant. And don't recall seeing the spiral 3 years ago. I vacation twice per year or even 3 times. Thanks again this was interesting.

    MJGD PRODUCTIONS 2 महीने पहले

    Philippine Airlines made an irony because the philippines always get hit by typhoons😂

  • Chris Johnson
    Chris Johnson 2 महीने पहले

    I’m not even going to watch the whole video I’m just going to post my comment the swell is there to let people know the engine spinning

  • bk kedairy
    bk kedairy 2 महीने पहले

    3:29 RIP bird

  • Chris Clark
    Chris Clark 2 महीने पहले

    Why not paint staggered designs on the turbine blades ?

  • Severe Clear
    Severe Clear 2 महीने पहले

    Great video; thanks, Captain.
    Going through flight training in the 90s in small propeller airplanes, everybody told me the markings on prop tips were for bystanders and ground crew, but the swirl on turbofans were for birds.
    Funny how misinfo spreads and becomes accepted as truth!

  • Wikum Ekanayake
    Wikum Ekanayake 2 महीने पहले

    Hey Caption.
    Let me ask you a stupid question.
    Can't airplane engines be covered by a net or something to minimize the effect of bird strikes. ?
    (I mean a strong net, that would not break against the momentum of the impact. Even a weaker one will be safer for ground workers, won't they ? )
    Obviously there should be a reason not to do. Please explain. Thanks.

  • Abhinav Chauhan
    Abhinav Chauhan 2 महीने पहले

    why don't they cover front of jet with wire mesh cover to avoid ingestion?

  • Saia Khawlhring
    Saia Khawlhring 2 महीने पहले

    How do they clutch the Jet engine. Because when they test the engine, the engine block do not move or shatter anymore.

    N3V3R FORGOTT3N 2 महीने पहले

    one interesting way to keep birds away from airports is to use birds of prey lead by a falconer to scare them away

  • Virgil Williams
    Virgil Williams 2 महीने पहले +2

    Stupid birds always causing trouble.

    • riot
      riot 5 दिन पहले

      Virgil Williams stupid humans building giant benders that fly. jk

  • Blaire Bustillo
    Blaire Bustillo 2 महीने पहले

    Wow thanks Capt Joe for this very informative video. 👍👍👍👍

    PARALLEL PEOPLE 2 महीने पहले +1

    Wow, this spiral have a serious use...

  • Joseph Stalin
    Joseph Stalin 2 महीने पहले +1

    The uchiha is running the airplane industry,those damn uchihas

  • TheUnk_own BoYo
    TheUnk_own BoYo 2 महीने पहले

    3:27 HEY, thats was my chicken dinner 》:^(

  • Brad Moyer
    Brad Moyer 2 महीने पहले

    Why don’t they place an array of sharpened ceramic blades ahead of the turbine blades to reduce the size of ingested bird pieces?

  • Bolumbuda Ayoob
    Bolumbuda Ayoob 2 महीने पहले

    I love emirates sooo much

  • Honey Rey Balberan
    Honey Rey Balberan 2 महीने पहले

    I just saw the Philippine airlines.

  • elin wang
    elin wang 2 महीने पहले


  • Jr Woodson
    Jr Woodson 2 महीने पहले

    I mesmerize a long time ago. There no going back now.

  • Sam Sen
    Sam Sen 2 महीने पहले

    Hey Captain: Are you sure these guys have not copied your material and actually have gotten prior permission from you in reproducing your material, elsewhere on INclips: ?

  • the engineer's company
    the engineer's company 2 महीने पहले

    What about a strong mesh hub like in hybl turbines be present at the intake duct

  • Shiny Growlithe
    Shiny Growlithe 2 महीने पहले


    What about the New Zealand spinniny thing

    BR CLIPS 2 महीने पहले +1

    Couldn’t you just paint the hole turbine than everything can see it

    • BR CLIPS
      BR CLIPS 2 महीने पहले

      True but you could get them to just paint the middle a really bright colour

    • Solid Snek
      Solid Snek 2 महीने पहले

      It wouldn't last long, the stators and blades are subject to thousands of degrees of heat...

    TREVOR HARP 2 महीने पहले

    between the a350 or the 787

    TREVOR HARP 2 महीने पहले

    what is your faviorite plain

  • Mygood 1983
    Mygood 1983 2 महीने पहले

    Wobbly eye painting is a cool innovative tech though ....wow...

  • sean dancel
    sean dancel 2 महीने पहले

    Joe why do airplanes accelerate so fast

  • I am not a bot I’m a real boy
    I am not a bot I’m a real boy 2 महीने पहले

    Joe “I fly planes” Rogan
    Wrong Joe

  • peter camasura
    peter camasura 2 महीने पहले

    5:02 I Love That Typhoon I live on the Philippines so im proud of our planes

  • Saad Altuilaai
    Saad Altuilaai 2 महीने पहले

    Is it possible to put a shield made of steel with small holes at the opening of the turbine so anything other than air cannot pass?

  • Rock Stone
    Rock Stone 2 महीने पहले +12

    Getting sucked up an airplane engine is probably one of the worsts way to die
    You are literally blended to death

    • Max Noerenberg
      Max Noerenberg 26 दिन पहले

      but its very quick.......takes just a milisecond and the pain is over!

  • Reg Hamilton
    Reg Hamilton 2 महीने पहले

    Hey joe plz answer I’m asking if I should work for jet2 should I

  • Zeeshan Masood
    Zeeshan Masood 3 महीने पहले

    How much salary package do you get when you join an airline without any experience?

  • Zeeshan Masood
    Zeeshan Masood 3 महीने पहले

    Hi captain!
    I am from pakistan
    I want to know that do pilots take personal guns on board for their safety?

  • zachary iddon
    zachary iddon 3 महीने पहले

    I probably sound stupid but why not paint turbine blades white on its exterior?

  • EternalGaming786
    EternalGaming786 3 महीने पहले +2

    Paint Sharingan on one of those Engine. :3 and put birds in a genjutsu lol

  • Black Eyes
    Black Eyes 3 महीने पहले


  • Clasher's Yt
    Clasher's Yt 3 महीने पहले

    There are so many bad puns in this channel but..... their so bad that I still smile from this *Why do the swirls spin , We will find out in the video so lets get SPINNING* Ouch.

  • JC
    JC 3 महीने पहले

    So you can tell they're turning and stay as far away as possible?

  • Gloria Donger
    Gloria Donger 3 महीने पहले

    Some of those spinners remind me of the mangeko sharingan

  • kwjuga
    kwjuga 3 महीने पहले

    Where does Joe find anyone who would do that paint job for $40..? :/

  • Deborshi Kashyap
    Deborshi Kashyap 3 महीने पहले

    I loved the video but could you please tell me what is the name of the first music. 😢😢😢😥

  • Manuel Medina
    Manuel Medina 3 महीने पहले


  • noxious89123
    noxious89123 3 महीने पहले

    4:50 *spits tea out* The fucking what now?

  • chris maggiora
    chris maggiora 3 महीने पहले

    I’m sure there’s a simple answer to this, but why not put a screen small enough to keep out most birds, but still large enough to allow for adequate airflow? It seems like it would be much safer for ground personnel. Is it a question of airflow not being enough?

  • Fans, Speakers, and more
    Fans, Speakers, and more 3 महीने पहले

    I don't remember seeing any horseshoe spinners, but I have seen both the Wobbly Crescent and the Comma.
    Wobbly Crescent on an AA 767: inclips.net/video/ViRXk11AWqc/वीडियो.html
    Comma on a KLM MD11: inclips.net/video/ZEPhgZeZARI/वीडियो.html

  • Blake Khan
    Blake Khan 3 महीने पहले +1

    Thank me later.

  • Aurélie Gahandm
    Aurélie Gahandm 3 महीने पहले

    Elle est super cette chaîne !

  • felobatir moheb
    felobatir moheb 3 महीने पहले

    they are spinners but if you add fidget to the name, we will have big problems.

  • Mekki Khiari
    Mekki Khiari 3 महीने पहले

    A curious question is how much the pilot receives his monthly salary per month. ??Thank you

  • Gsn Mithra
    Gsn Mithra 3 महीने पहले

    g swirl makes the bird dizzy and thats why we get bird strikes!

  • Christopher Michaels
    Christopher Michaels 3 महीने पहले

    Shirtless German bad guy in Raiders of the Lost Ark should've looked for the painted tips of the spinning propellers, might not have gotten ground into knackwurst

  • spare comentary
    spare comentary 3 महीने पहले

    They should make a Sharingan spinner for japanese airlines

  • Andy O'tam
    Andy O'tam 3 महीने पहले

    Why not just paint the entire engine fan?

  • TeslaKaniv
    TeslaKaniv 3 महीने पहले

    Just as I thought

  • gamer 123 gamer
    gamer 123 gamer 3 महीने पहले

    Your co pilot

  • Buck Otte
    Buck Otte 3 महीने पहले

    One might consider --horns--air horns like trains have---bye bye birdies...also, press the button on the stick to warn away personnel.

  • RexCV
    RexCV 3 महीने पहले

    Ow I saw the Philippine Airlines. Nice

  • New Jargon
    New Jargon 3 महीने पहले

    Learned a new word from the content of this video today, "suspress". I have not found the definition yet but I will keep trying