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

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  • 15/03/2018 को प्रकाशित
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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 • 2 130

  • JC
    JC 21 घंटे पहले

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

  • Gloria Donger
    Gloria Donger दिन पहले

    Some of those spinners remind me of the mangeko sharingan

  • kwjuga
    kwjuga 2 दिन पहले

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

  • Deborshi Kashyap
    Deborshi Kashyap 3 दिन पहले

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

  • Manuel Medina
    Manuel Medina 3 दिन पहले


  • noxious89123
    noxious89123 5 दिन पहले

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

  • chris maggiora
    chris maggiora 5 दिन 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?

  • Boeing 797
    Boeing 797 6 दिन 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 6 दिन पहले +1

    Thank me later.

  • Aurélie Gahandm
    Aurélie Gahandm 6 दिन पहले

    Elle est super cette chaîne !

  • felobatir moheb
    felobatir moheb 10 दिन पहले

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

  • Mekki Khiari
    Mekki Khiari 13 दिन पहले

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

  • Gsn Mithra
    Gsn Mithra 13 दिन पहले

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

  • Christopher Michaels
    Christopher Michaels 13 दिन 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 14 दिन पहले

    They should make a Sharingan spinner for japanese airlines

  • Andy O'tam
    Andy O'tam 14 दिन पहले

    Why not just paint the entire engine fan?

  • TeslaKaniv
    TeslaKaniv 14 दिन पहले

    Just as I thought

  • gamer 123
    gamer 123 15 दिन पहले

    Your co pilot

  • Buck Otte
    Buck Otte 15 दिन 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 17 दिन पहले

    Ow I saw the Philippine Airlines. Nice

  • New Jargon
    New Jargon 17 दिन 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

  • Lex wusky
    Lex wusky 19 दिन पहले

    Why not just paint the blades white?

  • Jr Woodson
    Jr Woodson 19 दिन पहले

    I would like to see a sky blue fan blades with a orange spinners with a white swirl. Do that make any sense

  • Mark J
    Mark J 22 दिन पहले

    @Captain Joe inclips.net/video/unxndrtf2_g/वीडियो.html

  • ES Naelix Talatayod
    ES Naelix Talatayod 22 दिन पहले


  • Amogh Killedar
    Amogh Killedar 23 दिन पहले

    @Captain Joe
    Sir please explain how reverse thrusters work.

  • Kevin Tanos
    Kevin Tanos 23 दिन पहले

    summary so you know the engine is spinning rom far

  • Caiden Wichert
    Caiden Wichert 23 दिन पहले

    5:03 no no no, it's spinning the wrong way in the animation :(

  • Talon Christiansen
    Talon Christiansen 23 दिन पहले

    I'm making a prediction. The spirals make it easier to see if the engine is running, working and what direction it's spinning.

  • Vero Abey
    Vero Abey 25 दिन पहले

    Can bird collisions be deadly?

  • Sutris Sutris
    Sutris Sutris 26 दिन पहले +1

    Wow nice Joe kapan saya bisa terbang bersama kamu Gratis

  • Jamie C
    Jamie C 26 दिन पहले

    5:08 When the plane kills its best friend and aquires the mangekyo spinner spiral. That's why its hard to find

  • Incitatus
    Incitatus 28 दिन पहले

    Im not gay but He is too hot

  • Leighton Winter
    Leighton Winter 29 दिन पहले

    Just in case the ground crew are def

  • Otto Müller
    Otto Müller 29 दिन पहले

    Why do the pilots say rotate in take off

  • Sidharth Subhash
    Sidharth Subhash महीने पहले

    My ambition is to become a pilot

  • Manj Sher
    Manj Sher महीने पहले

    I knew it... So happy

  • DJ ATM
    DJ ATM महीने पहले

    One day I want to be in a flight you being the pilot

  • Yusuf Zawawi
    Yusuf Zawawi महीने पहले

    Give indonesian subtiltle please!! For the next videos

  • P k
    P k महीने पहले


  • El Presidente
    El Presidente महीने पहले

    Its just a hidden Focker Wulf or Me/BF-109 inside

  • Franoo Kusiak
    Franoo Kusiak महीने पहले

    Why cant the engines be turned off while taxi and instead use wheels to move (not including takeoff)

  • Ramil Abing
    Ramil Abing महीने पहले

    2:08 din I just See the Philippine Airlines!!!

  • Cole Mair
    Cole Mair महीने पहले

    Telling me a bird isn't going to be scared off by the sound of a jet engine ... Bird brain

  • Ádám Tóth
    Ádám Tóth महीने पहले

    Köszönöm szépen a fordítást! Captain Joe warm thanks for the video!

  • Dog Bird
    Dog Bird महीने पहले

    This guy is cool. I always learn something new when i watch.

  • Scott Robertson
    Scott Robertson महीने पहले

    He is not a captain!

  • NoobStreamer
    NoobStreamer महीने पहले

    Is it just me or does the horse shoe look like a Sharingan?

  • korelly
    korelly महीने पहले

    At first, the question about the use of that spiral seemed to me too obvious to be asked. But Captain Joe is teaching us several additionnal interestings facts about aircrafts. But one question remains to me: why isn't there a safety metal grid in front of the engine air entrance so that a ground worker or a bird would no be sucked into the turbine fan?

  • Pablo Suarez
    Pablo Suarez महीने पहले

    ANA should do the sharingan xD

  • Sam W
    Sam W महीने पहले

    Ze Germans 🤣 you have been watching Faulty Towers

  • chrisxboth
    chrisxboth महीने पहले

    why not add a grill to the front of the turbine to keep things from getting sucked in? i'm sure there are pro's and con's to this

  • Christopher U.S. Smith
    Christopher U.S. Smith महीने पहले +1

    Why don't the engine makers put a grid on the front of the engine to keep the birds out?

    • Christopher U.S. Smith
      Christopher U.S. Smith महीने पहले +1

      +h8GWBî 1) That depends on the size of the openings. If the openings are small enough for air to pass but not bird, the amount of bird getting to the turbine blades will be very small. 2) To minimize FOD, it could be integrated into the engine front shroud, either as a permanent fixture or as a retractable deterrent.

    • h8GWBî
      h8GWBî महीने पहले +1

      Bc at airplane speeds a bird would still enter the engine, but in more pieces.
      Not to mention the constant FOD threat from any failure of the grid.

  • Dankmemes21121
    Dankmemes21121 महीने पहले

    Where did you come from, where did you go, where did you come from C a p t a i n J o e

  • Adrian Animations
    Adrian Animations महीने पहले

    The Germans, in WW2, used these things! It's an interesting fact!

  • imazoo kaitou
    imazoo kaitou महीने पहले

    dude you look like paul rudd!!

  • Raven Rockz
    Raven Rockz महीने पहले

    Yay Singapore and Cathay pacific Cathay is the plane I took and st airlines is my country airline

  • ding dong
    ding dong महीने पहले

    Holy shit. imagine being sucked into one of the engines. Imagine what it would feel like.

  • Chaitanya Bhalerao
    Chaitanya Bhalerao महीने पहले

    Hi Captain Joe,
    I find all your videos very enlightening.
    I am curious and want to ask that can the airplane engines be covered with metal gauge so that the birds won't get in to the engines? Can this be done to avoid bird impacts?

  • Funko
    Funko महीने पहले

    Paint a fidget Spinner on that

  • Greg p
    Greg p महीने पहले

    I have a hard time understanding Joe because of the foreign accent.

  • I M Android 17
    I M Android 17 महीने पहले

    I suggest if they can also create a "SHARINGAN" pattern for the Japanese Aircrafts.

  • Dominick Brewer
    Dominick Brewer महीने पहले

    What about all white engines with black spirals?

  • Abtron sh
    Abtron sh महीने पहले

    Molly go sucked in one of those..

  • wholeNwon
    wholeNwon महीने पहले

    The $ should PRECEDE the number.

  • The Triple 7
    The Triple 7 महीने पहले

    Delta's pw4000 engines have a very rare looking spiral

  • whatsgoingon07
    whatsgoingon07 महीने पहले

    “It’s the mangekyo sharingan”

  • Ian McGreevy
    Ian McGreevy महीने पहले

    Joe, is the order of starting up multiple engines of any significance?. Regards

  • Alice Is kawaii
    Alice Is kawaii महीने पहले

    Birds would always get in SPinarl spirel and That is commen in singapore

  • Rivertalle Lanon
    Rivertalle Lanon महीने पहले

    It was cool that you mentioned one of my favorite airline, The Philippine Airlines(PAL)and I really wanted to become a pilot since I was 6 years old but since I am coming from a Financially challeged family, we couldnt afford flight schools.

  • Marie BCFHS
    Marie BCFHS महीने पहले

    5:08 first one looks like some weaboo magical eye

  • Lee Yik Hang
    Lee Yik Hang महीने पहले

    The variation of spirals make me actually thought of the sharigans, mangekyou version to be exact.

  • Ammar Memon
    Ammar Memon महीने पहले

    Your videos are extremely interesting. They help me understand concepts I would normally overlook.

  • carlos ulloa
    carlos ulloa महीने पहले

    Hello Its posible subtitles in spanish please? Thks a lot

  • Vestfold 4
    Vestfold 4 महीने पहले

    Well Now i know the painted things is for safety for humans and other living things

  • Ram Madhu
    Ram Madhu महीने पहले

    why can’t they put a protective mesh or guard in front of the engines(suction blades)....

  • Paul Straney
    Paul Straney महीने पहले

    inclips.net/video/tnfoydzikhs/वीडियो.html - Ah poe strophe????

  • Mamdouh Tawadros
    Mamdouh Tawadros महीने पहले

    Why wouldn’t be a steel mesh be placed in front of the aeroplane ? It would prevent birds, or debris from damaging the engine.

  • Joaquin Antista
    Joaquin Antista महीने पहले

    The ground crewman in India should have probably watched this...

  • fabio matarazzi
    fabio matarazzi महीने पहले

    mangekyou sharingan, cit. Itachi Uciha

  • Eric Xue
    Eric Xue महीने पहले


  • sdf sdf
    sdf sdf महीने पहले

    looks like it says anal at 4:09

  • Jan Krähe
    Jan Krähe महीने पहले

    Paint a dick as a logo of that.

  • Noel Macaskill
    Noel Macaskill महीने पहले

    Les plus beaux effets c est sur les quatres JT9D en apostrophe équipant le magnifique B747-SP d Iran air opérant sur la routine Kuala lumpur-->Téhéran j etait en siège rangée6 droite hublot (EP-IAC si je me trompe pas...)l avion n'est plus actif depuis ...

  • Damien Drouart
    Damien Drouart महीने पहले +2

    Why use swirling thingies to afraid birds when you can paint badass sharpy-pointy-angry teeth nose art?

    • ceu160193
      ceu160193 महीने पहले

      Some birds will think "challenge accepted" and fly right into it.

  • Senior Avocado
    Senior Avocado महीने पहले

    It's a fidget spinner in the plane

  • Mobutu Obama
    Mobutu Obama महीने पहले

    Is pilot talks in feet. Sounds believable.

  • Maxamilus fan
    Maxamilus fan महीने पहले

    Plains trying to hypnotize citizens of the USA

  • PuteraHazim99
    PuteraHazim99 महीने पहले

    5:06 mangenkyo sharingan

  • raj kumar
    raj kumar महीने पहले

    MY suggestion is for a safer side (we can put white paint in the propeller blades no birds will go inside right)

  • Season
    Season महीने पहले


  • a abnormal human
    a abnormal human महीने पहले +1


  • Aditya Sharma
    Aditya Sharma महीने पहले

    Pilots are already cool and this pilot has a INclips channel. Wow!

  • Gabby Curias
    Gabby Curias महीने पहले

    I like the typhoon on the engine of the a330 on the Philippine Airlines

  • Jaes Guitar
    Jaes Guitar महीने पहले


  • Jaes Guitar
    Jaes Guitar महीने पहले

    Brie mine

  • Jaes Guitar
    Jaes Guitar महीने पहले

    Are you single cutie?

  • Jaes Guitar
    Jaes Guitar महीने पहले

    I love you oppa senpai

  • ayra espiritu
    ayra espiritu महीने पहले

    Why they didn't try to put a Dick Logo

  • Music Alley
    Music Alley महीने पहले

    Very well, but have you encountered bird strikes??