Jet Engine, How it works?

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  • Опубликовано: 26 сен 2024
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    / learnengineering
    The working of a jet engine is explained in this video in a logical and illustrative manner with help of animation. This video takes the viewer through 1-spool engine, 2-spool engine, turbo jet engine and turbofan engine.
    Like us on FB : / learnengineering
    Voice-over artist :www.fiverr.com...

Комментарии • 5 тыс.

  • @weirdguy564
    @weirdguy564 2 года назад +3127

    I'm a 25 year veteran from Duncan Aviation in Lincoln, NE. I can firmly attest that jets work by making a loud noise behind the plane, the plane gets scared, and the plane goes forward. Everything else is a bold faced lie.

  • @Playinghaloin2004
    @Playinghaloin2004 7 лет назад +4036

    I love the internet.
    I get curious about jet engines and 10 minutes later I roughly know how they work

    • @EliDjahn
      @EliDjahn 5 лет назад +36

      @@octaneartllc lol

    • @bac4998
      @bac4998 5 лет назад +69

      Crazy right.

    • @loicbruyneel9754
      @loicbruyneel9754 5 лет назад +26

      True but this isn't actuelly a turbojet engine, this is a turbofan engine.

    • @-.-4827
      @-.-4827 5 лет назад +11

      yes I too am american. see you at movie booth!

    • @Madmaxxxx1984
      @Madmaxxxx1984 5 лет назад +2

      got to love censorship

  • @GodOfVictory501
    @GodOfVictory501 2 года назад +31

    I really love the upbeat attitude of the narrator. I bet there's nothing about turbofan and turbojet engines that doesn't fill him with joy.

  • @semihklcgedik7239
    @semihklcgedik7239 2 года назад +138

    As a Mechanical Eng. grad but doing business in software, mechanical engineers are most underrated and under paid group of people in the earth. They make the magic and earn a moderate life.

    • @ibsn87
      @ibsn87 Год назад +13

      As a pilot in the right seat of a regional 38 seat turbo prop. I earn less then the guys that put the bags on the plane. Not to mention 140k worth of training, loss of income due to training and years of stress and sims every 6 months. We all do highly specialized jobs. The magic comes from teamwork, not individuals.

    • @semihklcgedik7239
      @semihklcgedik7239 Год назад +4

      @@ibsn87 Sir, you by any means are doing a complex and specialised job. Problem here is that you are also so underpaid.
      In Europe and Türkiye, my pilot buddies make x10-15 times the lowest salary.
      Pls transfer yourself to THY :)

    • @ibsn87
      @ibsn87 Год назад +1

      @@semihklcgedik7239 regional turbo prop first officer ~50-60k. Zero qualifications- Dump truck operator working 7 on and 7 off in open cut coal is on 120-160k in Aus. Teacher ~75-95k.
      Cabin crew 55-85k. Baggage handler 55-70k. The world is not fair at times. First officer of a 100 seater Jet ~120k. Even that, is less then a dump truck driver at the mines.

    • @dimitristripakis7364
      @dimitristripakis7364 Год назад +3

      As a highschool teacher I also feel underrated; my supreme intelligence knows everything but is treated as shite.

    • @RealCherry8085
      @RealCherry8085 Год назад

      Lol, Civil Engineers are paid the lowest.😂

  • @neethch
    @neethch 2 года назад +163

    I just want to say WOW. This is some great editing. I bet it took a while to piece together every bit of this information to make this video….. Good job...

  • @holamovie9343
    @holamovie9343 4 года назад +366

    "the same thing that moves a balloon!"
    me: helium?
    "newton’s 3rd law of motion!"

    • @ibrahimkayikci2146
      @ibrahimkayikci2146 4 года назад +6

      What happens when you loosen a filled party balloons air stopper? That's whqt he's talking about.

    • @anismukri4139
      @anismukri4139 3 года назад

      So can we considered turbine as a auxiliary machine please let me clear.....

    • @sixstanger00
      @sixstanger00 3 года назад +1

      Helium doesn't make balloons move. The rapid decompression forces helium out of the small orifice, generating thrust. You'll get the same effect regardless of which gas you air the balloon up with. The balloon skin expands when you air it up, so if there's an opening for gas to escape, the skin will retract and push the gas out.

    • @exaltedcarnage
      @exaltedcarnage 3 года назад

      Lol

    • @nameunknown007
      @nameunknown007 3 года назад

      @@sixstanger00 I think OP's confusion was due to concentrated helium (lighter than air) filled balloon makes the balloon go up in the air. However the concept the video is referencing is not that (but when any gas filled pressurized balloon has a sudden leak of air, balloon moves in opposite direction).

  • @graemeross9580
    @graemeross9580 3 года назад +189

    To cut a long story short, the answer is magic.

    • @notnotalwen4891
      @notnotalwen4891 3 года назад +12

      Short answer no
      Long answer hell no

    • @Fahrenheat
      @Fahrenheat 2 года назад

      Physics is magic

    • @gorkie6998
      @gorkie6998 2 года назад

      black magic

    • @AlanJojy
      @AlanJojy 2 года назад

      @Pill Smith the comment u saw is stolen by z..

    • @pretoriuswriting
      @pretoriuswriting 6 месяцев назад

      ruclips.net/video/EUk_PBnm1Zw/видео.htmlsi=V0t9a2WZl3QQPoaB

  • @hernandez6757
    @hernandez6757 2 года назад +24

    I still don’t understand anything

  • @lorenzogumier7646
    @lorenzogumier7646 3 года назад +50

    Excellent overview given the lenght of the video! A key point that wasn´t stressed enough imho, is the trade-off between speed and fuel consumption that turbo-fans come down to. That solution is at the very center of the economics of aircraft industry. Turbo fans don´t accelrate air as much as a turbo jet does but achieve the needed thrust by moving more air mass in comparison, thanks to a much larger diameter of the fan. The Trust is obtained by multiplying the air flow (kg/s) by the speed gradient. Given the same thrust a turbo fun allows for a smaller turbo-jet component which result in lower compsuntion at the expenses of speed at the noozle.

    • @elevul
      @elevul 7 месяцев назад

      Isn't that just a propeller aircraft with more steps then?

  • @FelixCepedaChannel
    @FelixCepedaChannel 2 года назад +301

    I wish I was smart enough to understand how to even build something like this it’s crazy the IQ of the engineers that made them impressive

    • @_tking
      @_tking 2 года назад +133

      the flaw here is we see these impressive inventions and forget that this is the result of no less than decades of engineering progress built on top of centuries of math and physics. you probably are smart enough, is what I'm trying to say

    • @kratosgow09
      @kratosgow09 2 года назад +65

      It's a collective knowledge by thousands of people rolled into one.Like the Internal combustion engine(ICE) it looks complicated but when you understand how it works it's fairly simple.

    • @k_alex
      @k_alex 2 года назад +10

      It's the product of combined inventions and knowledge. Not a miracle.

    • @garden0fstone736
      @garden0fstone736 2 года назад +1

      @@_tking we don’t deserve you

    • @_tking
      @_tking 2 года назад +4

      @@garden0fstone736 that's probably overdoing it a little but thank you for the compliment 😅

  • @PaymaanJafari
    @PaymaanJafari 9 лет назад +1979

    has anybody else notice blades are rotating in the wrong direction???

    • @PaymaanJafari
      @PaymaanJafari 9 лет назад +30

      It is obvious.

    • @PaymaanJafari
      @PaymaanJafari 9 лет назад +26

      ***** ok you intelligent! one, make your turbines that way, and pray they flay.

    • @PaymaanJafari
      @PaymaanJafari 9 лет назад +14

      No I don't know even one English word.

    • @filbsmoatlas1801
      @filbsmoatlas1801 9 лет назад +97

      +Paymaan Jafari YES AND IT MADE ME CRAZY!!! THINGS HAVE TO BE DONE RIGHT IN EDUCATIONAL VIDS!!!

    • @PaymaanJafari
      @PaymaanJafari 9 лет назад +21

      Imagine when in addition to such an obvious mistake, someone tries to convince you it is not wrong! Someone did that for real and tried it even with harshest possible words, look at above and you see some traces of my answers to him, as he has removed his comments :)

  • @piturcacatalin6251
    @piturcacatalin6251 Год назад +3

    Boy I never tought of myself as of paying memberships on netflix, let alone youtube, but this is the first, , for sure not the last, these channels are simply a blessing, I've been reading the course and I got nothing in my mind....

  • @Lola-ct3iw
    @Lola-ct3iw 5 лет назад +9

    Yes. The front blades indeed appear to be pitched reversely, to judge by the displayed rotation animation throughout this video. The correct pitch is at last shown briefly at the very end of the video; at about 5:20 min/sec. Thank you very much for taking the time and effort to post this very enlightening video. We appreciate a well-organized and clearly explained documentary. We look forward now to another video that may deal in the Electrical aspect of these same mechanisms; such that explains the Starting System, from beginning to end, perhaps. The Fuel and Acceleration System would also be quite an interesting video to watch, to conclude the understanding of the entire system in basic fundamental concept. Thanks again.

  • @SivaKumarCA
    @SivaKumarCA 8 лет назад +50

    Fantastic!! This is an awesome channel for non-engineers like me to learn *how stuff works*. Keep up the good work!!

  • @sittingbush
    @sittingbush 4 года назад +311

    Therapist: *Don’t worry, Boeing 747 with two engines isn’t real, it can’t hurt you*
    Boeing 747 with two engines: 0:02

  • @jobaytube
    @jobaytube 2 года назад +9

    This deserves a thumbs up. Simple explanation makes it perfect to understand.

    • @Neko_shop-f1n
      @Neko_shop-f1n 2 года назад

      The only thing internet explorer and i will not.

  • @husaininorrahman9959
    @husaininorrahman9959 3 года назад +25

    This is a GREAT explanation. Finally I get the grasp of the concept. Thank you.

  • @nickjones3559
    @nickjones3559 3 года назад +10

    Stumbled across this channel and it is now my fav channel on all media platforms. Great explanations on so many amazing engineering devices! Thank you for creating this channel and it’s content.

  • @prodbylikklecd
    @prodbylikklecd 5 лет назад +234

    That 747 with only 2 engines at the beginning tho

    • @Saltoulious
      @Saltoulious 5 лет назад +5

      HeistPhaze LMAO 😂

    • @raulc2015
      @raulc2015 4 года назад +4

      Juuuuuust ignore it

    • @PizzaPowerXYZ
      @PizzaPowerXYZ 4 года назад +3

      I only saw 1

    • @lamvu8695
      @lamvu8695 4 года назад +1

      Ffak bitg thetv ,game

    • @urgedpanda
      @urgedpanda 4 года назад +1

      Random dude why would this not be a 747 except for the fact it has 2 engines

  • @shawshank_1317
    @shawshank_1317 6 лет назад +665

    90% comments- blade is running in the wrong direction

    • @excitingmarmot2820
      @excitingmarmot2820 5 лет назад +4

      Shashank Gupta how can they know it I wonder 😂

    • @marfigue777
      @marfigue777 5 лет назад +1

      Thanks lol

    • @franciscomartinez5570
      @franciscomartinez5570 5 лет назад +7

      Blades are spinning in the wrong direction

    • @John_Nakano
      @John_Nakano 5 лет назад +8

      0:01 Boeing 747 engines supposed to be 4 not 2

    • @keksimusultimus4257
      @keksimusultimus4257 5 лет назад +20

      @@John_Nakano no one cares. what's the important here is what's happening inside the engine....

  • @vladsnape6408
    @vladsnape6408 2 года назад +8

    I loved all the random directions the arrows were pointing and parts were spinning.

  • @ericlarue8010
    @ericlarue8010 4 года назад +67

    The intake fan is rotating backwards in the animation. At a minimum the intake fan will have be going forward for it to work.

  • @jonash5320
    @jonash5320 Год назад +1

    Sooo... Turbofan = jet+propellor+casing.
    But why not leave out the casing? Just because of noise or does it actually increase the reaction force on the propellor? Or would the propellor without a casing spin too slow to provide any thrust at all at high speeds of the aircraft?

  • @popedpopcorn
    @popedpopcorn 9 лет назад +61

    I was searching something else and I found ur videos ! so fun to watch ! and even if you know , you just want to watch the video .... I hope you develop more videos ! it will change the world once things can be visualized instead of memorized ....

    • @Lesics
      @Lesics  9 лет назад +14

      popedpopcorn Thank you for your compliments :)

    • @yyz2go2112
      @yyz2go2112 7 лет назад +1

      Visualization is a fun way to learn, comments from authorities on the subject-crucial

    • @lants8096
      @lants8096 6 лет назад

      lectric2010 Nothing like learning the wrong way

    • @doctorofminecraft2078
      @doctorofminecraft2078 2 года назад

      @@Lesics Is what your saying about turbofan engines is that the faster the fan spins the more air it sucks in and it increases thrust?, Basically does the faster the fan spins the higher the thrust will be achieved?, Also does increasing the number of turbines/spools increase thrust?

  • @Maelstrom2077
    @Maelstrom2077 3 года назад +4

    thank you learn engineering i really want to become an aircraft engineer when i grow up and you really helped me.

  • @seaman8296
    @seaman8296 9 лет назад +728

    the compresor is spining backwords

    • @easyamp123
      @easyamp123 9 лет назад +3

      othman fikri lol I noticed that also, oops lol

    • @jtomos
      @jtomos 9 лет назад +8

      othman fikri Came here to say that. High five! :D

    • @rot_v
      @rot_v 9 лет назад +1

      They do this so that the engine is stable as well as to keep the air flow smooth. That's why they have the stators and the stator veins.

    • @easyamp123
      @easyamp123 9 лет назад +11

      Valk Stators have nothing to do with keeping the air flow smooth, explain what you are thinking. Stators increase the bite angle of the trailing turbine/compressor veins or blades (whatever you want to call them) so that the air entering the front of the turbine is moving at in an opposite direction, or is at least not turning with the trailing turbine/compressor. This makes the turbine/compressor more effective.

    • @rot_v
      @rot_v 9 лет назад

      Thad ward That is what I was (kind of) trying to say. I should've said that the stators and stator vanes redirect the airflow as that is what they do.

  • @kadriaejajm
    @kadriaejajm 7 месяцев назад +1

    One of the best explanation on youtube for Aircraft engine !!

  • @rich1051414
    @rich1051414 8 лет назад +61

    Why are the front rotor blades inverted? Wouldn't that make it spin the wrong direction?

    • @cameronsmith5968
      @cameronsmith5968 8 лет назад +4

      I noticed this too. I think it's what martin said.

    • @mrchickene1805
      @mrchickene1805 8 лет назад +5

      At 4:00 the front rotor blade is going in the correct direction. At 5:00 the rotor is still turning in the right direction, but the animation turned the blades 90 degrees in the wrong direction.

    • @rich1051414
      @rich1051414 8 лет назад +2

      Dennis Edwardz Thanks, yeah. I looked back later, and was having problems seeing what I saw the first time. Didn't really feel like going through all that again :P
      I have directional dyslexia so I couldn't figure out if i was just confusing myself. When people make mistakes like that, it really fucks my mind over, my brain is suppose to be the source of the inconsistency :P

    • @Sub___Zero
      @Sub___Zero 7 лет назад

      Its Saab JA 37 Viggen's engine........XXXDDD

    • @ยุทธนาอุบาลี-ฌ4ป
      @ยุทธนาอุบาลี-ฌ4ป 7 лет назад

      Richard Smith

  • @oc2phish07
    @oc2phish07 2 года назад +5

    An excellent video that clearly explains so much of what is going on with a relaxed delivery style.

  • @Achilles033
    @Achilles033 9 лет назад +133

    Since the exhaust applies the torque to the turbine that runs the fan, how is it started from rest?

    • @Lesics
      @Lesics  9 лет назад +124

      Chris Bogart Good question, for the starting purpose we have to use an electric motor. The electric motor will run the main shaft until enough air flow is achieved in compressor and combustion chamber. After that the fuel can self ignite and sustain the operation.

    • @233kosta
      @233kosta 9 лет назад +17

      Chris Bogart Depends on the engine, usually involves spinning up the HP shaft in some way, then when enough air is going through - engaging the igniters and introducing fuel.
      The spinning up of the shaft can be done in several ways. Quite a common one is the air turbine starter, which is a small turbine attached to a reduction gearbox, spinning the accessory shaft which attaches to the HP shaft (it drives accessories like the oil pump when the engine is running). You can take that air from the aircraft's APU (which itself has an electric starter), or a ground based starter. On multi engine aircraft, the one running engine can then supply bleed air from one of its compressors to start the other engines. Some engines (as mentioned by the uploader) use electric motors to spin the accessory shaft, and the RR Olympus uses a hydraulic motor. The air turbine starter is generally more popular however as it can provide a lot of power for its size and weight, and it's fairly simple.
      Another way of starting a gas turbine engine is by direct turbine injection. Injecting air directly into the HP turbine causes the engine to spin up the way it does under normal operation, however it usually requires a greater volume of gas than an air turbine starter, which may be unavailable if the APU isn't big enough (or the ground based air supply). This may be done to save on the weight of the air turbine starter and its gearbox (or an electric starter), but as mentioned above - may be impractical, as it requires either a bigger APU (which would make the aircraft heavier) or a dedicated ground starting gas supply, which makes it dependent on external equipment which may not be at every airport

    • @SamnissArandeen
      @SamnissArandeen 9 лет назад +9

      Learn Engineering Most commercial-airliner applications would overheat a starter electric motor. Usually a "start cart" provides compressed air to an air-turbine starter on the engine's gearbox to give it the spin-up it needs to start. Some planes (all ETOPS-compliant ones among them) can start their engines internally using bleed air or hydraulic pressure from their auxiliary power unit. I've only ever seen one electric-motor starter on a commercial jet engine.

    • @Sakardiansyah
      @Sakardiansyah 9 лет назад

      233kosta

    • @233kosta
      @233kosta 9 лет назад

      Sak Ardiansyah Hmm yes?

  • @slipperybeastaviationfishingsh
    @slipperybeastaviationfishingsh 2 года назад +1

    Great video thank you I am an Aircraft technician

  • @jenshendriks9092
    @jenshendriks9092 8 лет назад +99

    Is it me or are the front rotors going the wrong way in this animation? They blow the air away from the motor in stead of sucking it up.

    • @Captain_Dark
      @Captain_Dark 8 лет назад

      Wrong way I noticed that also I was like....that fan is blowing not sucking

    • @StrelitziaLiveries
      @StrelitziaLiveries 8 лет назад +2

      +Captain Dark welcome to russia

    • @Captain_Dark
      @Captain_Dark 8 лет назад

      Lmao

    • @StrelitziaLiveries
      @StrelitziaLiveries 8 лет назад

      +Captain Dark hehe

    • @td3039
      @td3039 8 лет назад +1

      No it's not you, I thought exactly the same thing.

  • @BlueThunderO7
    @BlueThunderO7 8 лет назад +6

    I can't believe how much I'm learning right now it's awesome!!!

    • @matejcapak1571
      @matejcapak1571 6 лет назад +1

      Be carefull about sources, thiv video contains mistakes...

  • @multiomer1997
    @multiomer1997 2 года назад +4

    if i compare "Turbo Fan Engine" with an Star combustion Engine from a McDonnel Douglass DC3. the Power went 100x stronger and the idea is more than 100x simpler. oh man, i love these engineers who invented this technic

  • @kpec3
    @kpec3 Год назад +1

    Frank Whittle was some kind of genius. Thx 4 the video!

  • @brianhoefer7148
    @brianhoefer7148 2 года назад +4

    1:50 in your animation, it appears that the forward fan blades are pitched backwards.

  • @infoid5805
    @infoid5805 2 года назад +41

    I'm fascinated by how powerful and organised these massive machines are and what sucking power they produce and what output(so Powerful) it produces and we normally say it's a aeroplane nothing big!

    • @chaoscontrolled5978
      @chaoscontrolled5978 2 года назад +5

      Sucking power 🤤🤤🤤

    • @malekaren7241
      @malekaren7241 2 года назад +1

      I got more sucking power

    • @chaoscontrolled5978
      @chaoscontrolled5978 2 года назад +1

      @@malekaren7241 No me

    • @malekaren7241
      @malekaren7241 2 года назад

      @@chaoscontrolled5978 my aeroplane is bigger and my output is way more powerful

    • @chaoscontrolled5978
      @chaoscontrolled5978 2 года назад +1

      @@malekaren7241 Nuh-uh thats just not true my mom says I have the biggest jet engine

  • @MamyKit
    @MamyKit 2 года назад +4

    Merci pour ce partage ! Vidéo géniale comme d'habitude 😊

  • @noorsadia4262
    @noorsadia4262 Год назад

    My Whole aviation internship summed up in a video, marvelous!

  • @joshuastanlick6217
    @joshuastanlick6217 10 месяцев назад +3

    I think that the fanblade section is spinning in the opposite direction, judging by the design of the blades. Otherwise, good video!

  • @alireda646
    @alireda646 8 лет назад +9

    great work
    but I think you should mentioned the nozel at the end and the defuser at the beginning

    • @nexivy
      @nexivy 5 лет назад

      The Aero dynamics of casing don't matter

  • @WaqqasAzeem
    @WaqqasAzeem 8 лет назад +148

    front blades are moving in wrong direction. this rotation is throwing air out instead to intake

    • @Knightfire66
      @Knightfire66 6 лет назад +1

      yes

    • @TheCryptKeeper8
      @TheCryptKeeper8 6 лет назад +7

      Schoolboy errors like this always make me wonder what else could be wrong that I wont notice in the video and throw me off my learning. Brilliant if not for the small mistake.

    • @arsia.h8670
      @arsia.h8670 6 лет назад +1

      Yes .
      in many other clips too i saw this! !!
      Its not an idiot mistake? !!@

    • @alanhowitzer
      @alanhowitzer 6 лет назад +1

      Hey, don't you know the blades are spinning in the wrong direction.

    • @realitytube1
      @realitytube1 6 лет назад

      They are baisically compressor blades.
      ment to compress the air.so that why they arr shaped.

  • @oneofevery9365
    @oneofevery9365 2 года назад +1

    I like how youtube recommendations are trying to educate me

  • @ENTERTAININGGAMECHANNEL
    @ENTERTAININGGAMECHANNEL 2 года назад +6

    Nice Efforts in presentation......

  • @TheFeaz
    @TheFeaz 8 лет назад +4

    What technology / software do you use to create the narration for this video? It is done very well! Were it not for a few nearly indistinguishable grammar flaws, I would not recognize this as a synthesized voice. I work in IT and am very fascinated by the quality of the voice production and would like to know more about how that was done. The video itself was also very interesting and nicely put together.

    • @finnshadow2668
      @finnshadow2668 Год назад

      It's a person? They link the voice actor in the description

  • @carlitosandres
    @carlitosandres 8 лет назад +14

    Awesome, I didn't know about this. I love how energy is squeezed to the limit, like the rankine cycle with reheat or regeneration does to vapor. But I have a question: How does it start? is there a spark plug of some sort?

  • @tgs1mfad860
    @tgs1mfad860 2 года назад +1

    We need someone to make a Jet Engine lore

  • @mini_frank
    @mini_frank 4 года назад +5

    I like how all the blades on the intakes are reversed.

  • @Bravocharlie61
    @Bravocharlie61 8 лет назад +5

    "Jet engines have been the driver of aircraft for nearly a century, now." No wonder the Red Baron was so successful.

  • @quicknickucf
    @quicknickucf 9 лет назад +60

    "Jet engine have been successful drivers of aircraft for nearly a century". who gave this guy a history lesson in aviation? 100 years ago we barely had bi-planes.

    • @spencer6104
      @spencer6104 6 лет назад +3

      The first jet engine was in the 40s right?

    • @A21A11A
      @A21A11A 6 лет назад +6

      @@spencer6104 me 262 developed by Germany in ww2 :)

    • @spencer6104
      @spencer6104 6 лет назад +1

      Ace Master nice I thought it was the luftwaffe who invented it.

    • @rookieranger4696
      @rookieranger4696 6 лет назад +4

      Ace Master
      One of the first "mass" produced fighters that were powered by a jet. However, the first actual plane to take flight with a jet engine would be the He 178 in 1939.

    • @N800-q1b
      @N800-q1b 5 лет назад +1

      @@spencer6104 1949 De Hallivand Comet. First commercial JET plane.

  • @shroobfan101saccount4
    @shroobfan101saccount4 2 года назад

    I love how the algorithm seems to know what classes I'm taking in college right now, cause this is straight out of propulsion stuff.

  • @oxm18
    @oxm18 8 лет назад +312

    The propeller is moving the wrong way!

    • @paco12303
      @paco12303 8 лет назад +1

      +Mario Mirdita yes indeed i see that

    • @jemzhatfelid5522
      @jemzhatfelid5522 8 лет назад +8

      +Mario Mirdita studies show that 0% of people care

    • @rookiedudestor5405
      @rookiedudestor5405 8 лет назад

      +Mario Mirdita Graphical glitch, turns correctly first part of the film :)

    • @iSim0641
      @iSim0641 8 лет назад +2

      +Thesuperjaskinassassin The Boss my observations lead me to believe you are not and never gonna be an engineer.

    • @futurestar3348
      @futurestar3348 8 лет назад +1

      +Mario Mirdita how can you tell?

  • @LFSPharaoh
    @LFSPharaoh 7 лет назад +57

    "and then witchcraft happens and you go faster"

    • @Jabba1625
      @Jabba1625 4 года назад

      I didn't know Hillsong produced videos about technology now

  • @o_tout0
    @o_tout0 2 года назад +3

    My subconscious mind: Come on man you gonna sketch and analyze the anatomy of the pelvis right now.
    My procrastinating mind: Yes totally agreed but i have to learn how jet engine works...

  • @morse6825
    @morse6825 2 года назад

    Bro this video been in my recommended like 13 times finally had to watch it

  • @1JackTorS
    @1JackTorS 3 года назад +7

    "The missile knows where it is at all times. It knows this because it knows where it isn't. By subtracting where it is from where it isn't, or where it isn't from where it is, whichever is greater, it obtains a difference or 'deviation'. The guidance subsystem uses deviations to generate corrective commands to drive the missile from a position where it is, to a position where it isn't, and arriving at a position where it wasn't, it now is. Consequently, the position where it is, is now the position that it wasn't, and it follows that the position that it was, is now the position that it isn't."
    I'm sorry, this narrator might be the same guy who tries to explain this missile guidance system.

  • @threeatenu62d3
    @threeatenu62d3 8 лет назад +6

    on 04:50, the front blade changed its shape!

  • @nexivy
    @nexivy 5 лет назад +22

    0:20 "the same way an air filled balloon moves," me: displacement? "Exactly, Newtons 3rd law of motion."

  • @AcousticJamDad
    @AcousticJamDad Год назад

    Came here as I’m sitting on a plane bored out of my mind, decided I’d learn the inner workings of the commercial jet engine. Now I can testify in court as an expert, especially bc I stayed at a Holiday Inn Express last night 😂

  • @lamp-stand7
    @lamp-stand7 7 лет назад +11

    "Jet engines have been driving aircraft for nearly a century now?" Why were we flying those biplanes in WWI ?

    • @KLAWNINETY
      @KLAWNINETY 5 лет назад

      First jet engines were developed in the 40s by the Germans. They also made a rocket plane lol

    • @jaymarcase9737
      @jaymarcase9737 4 года назад

      I was like wtf

    • @johnwilletts3984
      @johnwilletts3984 4 года назад

      The jet engine was invented in U.K. by Sir Frank Whittle in the 1930s. Germans copied. But their WW11 jet aircraft was better than Britain’s. The first British WW11 jet fighters were used to shot down the V1 pilotless bombs.

  • @acidphoenix9110
    @acidphoenix9110 2 года назад +3

    I can’t even imagine the person who made and engineered the first jet engine or building a plane in general

  • @armymenstopmotion8440
    @armymenstopmotion8440 8 лет назад +10

    A 747-800 shown at the beginning runs on 4 engines, not two.

  • @Anomalocaris
    @Anomalocaris 2 года назад

    Your explanation is very easy to grasp

  • @NoneTaken
    @NoneTaken 5 лет назад +11

    747 with 2 engine ? 0:01

  • @peterstefan6900
    @peterstefan6900 5 лет назад +4

    Why is the first frame of the video a Boeing 747-400 with 2 engines and not 4?

    • @titan9259
      @titan9259 5 лет назад +1

      People who know nothing about planes :P

  • @Airwolf4545
    @Airwolf4545 8 лет назад +71

    Fan and compressor wheel is rotated in the wrong direction)))

  • @DabbingGoose
    @DabbingGoose 4 месяца назад

    We needed this 9 years ago
    We needed it now

  • @rmaxwell3294
    @rmaxwell3294 3 года назад +8

    All I can say is ( thank you all) for the great Outstanding comments I am reading, I haven't laughed this much in weeks, I am proud to call you my You Tube friends.. Thanks again..Hahahaha Hahahaha 😃😃😃

  • @nachiketadeshmukh8444
    @nachiketadeshmukh8444 9 лет назад +30

    Totally worth watching! I have always wondered how this stuff works. Excellent piece of work!

  • @logicalphallusry
    @logicalphallusry 2 года назад +12

    Random question. If the fuel were to ignite, what kind of temperate could it be expected to reach?

    • @krahe9376
      @krahe9376 2 года назад +2

      this is gold

    • @13terapyn
      @13terapyn 2 года назад

      @@krahe9376 admittedly, I'm not a very bright person. but even i get why this is "gold" 😆

    • @huzaifkhan5940
      @huzaifkhan5940 2 года назад

      I may be wrong, But the Fan from the turbofan engine sucks in cool air and mixes with the ignited fuel to maintain an APPROPRIATE TEMPERATURE for the thrust. Basically. Fuel is injected just to bring in more power or acceleration. Plus, why the engine nacelles dont burn because they are made out of high temperature resistant components like Steel.

  • @RealGoofyShorts
    @RealGoofyShorts 2 года назад

    I had this question for too many years...
    And RUclips finally recommended me it!!! 😩

  • @peterjohnston1224
    @peterjohnston1224 2 года назад +3

    Long story short: A jet engine is a "continuous cycle" diesel engine. The pressure out of the compressor at 35 Bar is about 450 psi, and super hot. Inject fuel and it instantly combusts, heating and expanding while doing so. This hot exhaust drives the compressor spool and the by-pass fan.
    A diesel engine is often a 20:1 compression ratio giving 280 psi.

    • @jonathanjordan8325
      @jonathanjordan8325 2 года назад

      This is sooooo wrong. Bring in the air from the fan, then compress it with smaller closer blades sending it through the combustion chamber, which mixes the air with fuel and lights it, then it goes to hpt (high pressure turbine), which compacts the air even tighter, then the lpt pushes it out the exhaust, in the exhaust the pressure and thrust is determined by the the size of the nozzle and whether there is an augmenter or a simple shaped nozzle to determine how fast the air comes out, meaning how much thrust is porduced

    • @zeendaniels5809
      @zeendaniels5809 2 года назад

      @@jonathanjordan8325 That's pretty much how a jet engine works... But in a turbofan (as shown in the video) almost all of the thrust is generated by the air moved by the fan attached to the jet engine.

    • @jonathanjordan8325
      @jonathanjordan8325 2 года назад

      @@zeendaniels5809 you are correct. This is a high bypass engine. Probably about 85% of the thrust. I apologize for the misunderstanding.

  • @abhijeetjadhav7828
    @abhijeetjadhav7828 8 лет назад +16

    Please correct the bled direction

    • @alanhowitzer
      @alanhowitzer 6 лет назад

      Hey, don't you know the blades are spinning in the wrong direction.

    • @Klarpimier
      @Klarpimier 5 лет назад +2

      It's actually spelled "Pliz"

  • @jacksonpuckett6115
    @jacksonpuckett6115 5 лет назад +105

    Always remember people: When you think you're smart, think again. "Smart" people, come up with shit like this.

    • @brendendielissen949
      @brendendielissen949 4 года назад +23

      Dont feel too bad, it takes many "smart" people and decades of research and engineering development, to come up with shit like this.

    • @kougou48
      @kougou48 4 года назад +2

      Smart people come up with shit like this. Smarter people search for it without knowing it was already invented.

    • @noisemarine561
      @noisemarine561 4 года назад

      Id say it's a matter of diligence and dedication.

    • @jacksonpuckett6115
      @jacksonpuckett6115 4 года назад +1

      @@kougou48 Arrogant.

    • @jacksonpuckett6115
      @jacksonpuckett6115 4 года назад

      @@noisemarine561 sure

  • @whocares_bear
    @whocares_bear 7 месяцев назад +1

    I don't know why I'm filling my head with this information when nothing I do is even remotely related to this. Gotta love youtube and my child-like curiosity!

  • @Agyz
    @Agyz 2 года назад +3

    Jet Engine Lore

  • @tusharsinha94
    @tusharsinha94 8 лет назад +15

    What's with the stress on the second last syllable of each sentence!

    • @dcdcclick4635
      @dcdcclick4635 6 лет назад

      Die Hard Rail Fanning!!! My moo bg to eat go to go go to all hi

    • @freshdugi
      @freshdugi 5 лет назад

      Stress on the second last syllable is caused by incorrect fan rotation. :)

  • @anunentitledmotivatedmille7731
    @anunentitledmotivatedmille7731 4 года назад +4

    In this animation the compressors spinning the wrong way!! 1:45

  • @markjade3587
    @markjade3587 2 года назад

    This got randomly recommended to me,and I'm happy

  • @MikeJ-dx2fe
    @MikeJ-dx2fe 4 года назад +7

    "thus it helps to improve the thrust"

  • @GHannel
    @GHannel 8 лет назад +42

    Your animation is wrong... compressor 2:50 and propeller 5:04 blades are wrong angled or they need to be reversed.. if they turn as in the animation they wil pul air out of the turbine from the front.. Any engineer or person with minimal aerodynamics knowledge will understand.

  • @physicsjagat
    @physicsjagat Год назад

    Very clear concept of jet engine explained by you

  • @reachsandbox
    @reachsandbox 5 лет назад +18

    Considering the blades and all other stuff are working the right way :
    Always wondered why doesn’t the high pressure hot flames go reverse (they only escape from back while they can travel to front of the engine passing through the compressor)
    I mean according to the physics laws the pressurized air atoms push’s in the all directions

    • @Quercus_Maximus
      @Quercus_Maximus 5 лет назад +1

      Me too. Why do the gases magically keep moving to the exhaust? There has to be lower pressure. Is there a venturi effect? Maybe think of a blow torch, where there is a blast of ignited gas away from the nozzle, with no compressor. But why does that happen?

    • @MrDoboz
      @MrDoboz 4 года назад +10

      @@Quercus_Maximus you don't need compressor for the gas torch, the gas itself is compressed, and won't ignite without oxygen. there is no oxygen before the nozzle, so it can't burn backwards even if the gas runs out and pressure drops to atmospheric pressure

    • @midgetman4206
      @midgetman4206 4 года назад +14

      The turbine in the back lowers the pressure and so the hot pressurized gas wants to equalize it, but then it just powers the system and pulls more air in from the front.
      Basically we make physics our b*tch

    • @ghaithghazi6748
      @ghaithghazi6748 4 года назад +2

      Difference in pressure will always move fluids to the lower pressure point aka exhaust .

    • @machielluchtmeijer7796
      @machielluchtmeijer7796 4 года назад +1

      Because the pressure is lower after the exhaust

  • @JOHN-CONNOR3000
    @JOHN-CONNOR3000 2 года назад +18

    If you fly an aeroplane inverted in the air,the engines will start failing and you have to dump the fuel out of the engine before the oil catches on the flame and explodes the engines so imagine a plane flying upsided down in the air with two or more smoking engines depending how much engines the plane has,it's amazing.

  • @paullastnamehere3295
    @paullastnamehere3295 2 года назад +3

    This is a great video and I like the graphics, but you are missing some things. I know it is basic but could easily be added without adding more graphics. You are missing the diffuser before the combustion chamber. The diffuser is the last stage of compression and straightens the air to allow the compressed air to flow in and over the fuel nozzles to atomize the fuel before being burned. Without the diffuser, the fuel air mixture would spiral around inside the combustion chamber and destroy it. Could also add in secondary air which aids in cooling components including oil and the outer case of the compressor and turbine. There is a lot more, but I figured these should be added with the graphic video that you already have without having to add much else.

  • @OmarDelawar
    @OmarDelawar 5 лет назад +4

    So I will add a comment that doesn’t have anything to do with the DAMN BLADES MOVING IN THE WRONG DIRECTION. Jeesus people we get it after the 1000th comment. My question though is - why is the air being bypassed in turbo fan engine setups? Is it for noise reduction purposes only?

    • @AnnicK.Zoloft
      @AnnicK.Zoloft 4 года назад

      The point of high bypass engines is that you accelerate a much higher mass of air, to a much lower velocity. Because thrust is mass×acceleration, and its better to increase the mass and decrease the speed of the jet itself, because any energy used to move the air instead of the plane is waisted energy. So the more you change the state of the air the more energy you waste.

  • @Elias-xy9kc
    @Elias-xy9kc 3 года назад +6

    *BIRDS* left the chat! 💭

  • @chumleyk
    @chumleyk 3 года назад +4

    "Jet engines have been the successful drivers of planes for nearly a century"? Are you kidding me? You can't be a real engineer if your rounding is that generous.

    • @GeekBoyMN
      @GeekBoyMN 3 года назад

      My very first thought when I read the title!

  • @ne_1_4_chocl8
    @ne_1_4_chocl8 2 года назад +1

    My father revolutionized jet flight and made it commercially viable by reducing its cost while increasing its power and efficiency. I'm sure he'd be very happy these introductory animations are easy for anyone to find and watch.

  • @Jacson4100
    @Jacson4100 9 лет назад +6

    really nice video but the fan and compressor blades are spinning in wrong direction see at 0:54

    • @Jacson4100
      @Jacson4100 9 лет назад

      look the inclination of the compressor blades (in blue), if they rotate in this direction, the air flux should go in oposite direction

    • @Jacson4100
      @Jacson4100 9 лет назад

      No man, just try to run any fan on this way and observe, look the video: jet engine made on a 3d printer for example.

  • @GenerationXerography
    @GenerationXerography 6 лет назад +63

    "Jet engines have been the successful drivers of aircraft for nearly a century now" - Is 2017 "nearly" 2041?

    • @catlover1986
      @catlover1986 5 лет назад +16

      Yes, it nearly is. If you have 76 cents, you nearly have a dollar.

    • @captainoblivious_yt
      @captainoblivious_yt 5 лет назад

      @@catlover1986 Horrible analogy

    • @catlover1986
      @catlover1986 5 лет назад +16

      @@captainoblivious_yt Why do you say that? It is literally a mathematically perfect analogy.

    • @captainoblivious_yt
      @captainoblivious_yt 5 лет назад +2

      @@catlover1986 I say that because years are not comparable to cents. While it could be mathematically acceptable to round the number 76 up to 100, doing the same thing with years is just not the same. If you have 76 million dollars in your account, you don't walk around saying "i have about 100 million dollars in my account", because that's just stupid.

    • @catlover1986
      @catlover1986 5 лет назад +9

      @@captainoblivious_yt But they are comparable. Bill Gates has "about 100 billion bucks". It is fair to say.
      Percentages are all that matter. We don't cease to round because the numbers are large.

  • @lMobiuscidl
    @lMobiuscidl 8 лет назад +10

    And how does fuel take part on this?
    I don't think I understood it...

    • @chocoroll8D
      @chocoroll8D 8 лет назад +8

      +Pablo Cid Fuel is atomized through little nozzles and sprayed into either a combustion can or the ring assembly shown in this video. The combusted air produces more energy because it's hotter and therefore is a higher pressure. When the hot air goes through the narrower exhaust, which is shaped like a venturi tube, the high pressure is turned into velocity thanks to bernoulli's principle. That high velocity gives the engine thrust.

    • @lMobiuscidl
      @lMobiuscidl 8 лет назад

      i'm allowed indoors
      thank you very much mr. dog!

    • @feintnightmare6274
      @feintnightmare6274 8 лет назад

      +Pablo Cid dog? srsly? to the guy that just helped u? wow ._.

    • @lMobiuscidl
      @lMobiuscidl 8 лет назад +1

      Feint Nigh tmare
      his nickname was "something-dog" when Ihe replied to me. Didnt you think about that possibility before commenting?

    • @JJose-22
      @JJose-22 8 лет назад

      +Pablo Cid i did but ruled it out coz i though u are a jerk :/

  • @JD-eq4dp
    @JD-eq4dp 3 месяца назад

    Another British invention that has enriched the world.
    Bravo Frank Whittle.

  • @Korisniknovi
    @Korisniknovi 8 лет назад +8

    1:45 compressor is turning the wrong way.

    • @Benjicmm
      @Benjicmm 8 лет назад +6

      ha all that work animating this and its spinning the wrong damn way

    • @matejcapak1571
      @matejcapak1571 6 лет назад

      IMHO the fans have the correct dirrection of rotation - the same as the turbine (they are on the same shaft), but they have the wrong orientation of blades.

    • @SuprSi
      @SuprSi 5 лет назад

      @@matejcapak1571 Either all the compressor blades have the pitch reversed, or the stator blades in the turbine section are reversed. Changing the rotation would still leave this animation wrong. Pretty dim mistake on something that no doubt took a lot of time and effort to animate. What blows my mind is the number of people who

  • @soccerlvr8221
    @soccerlvr8221 9 лет назад +23

    still don't get it, all I noticed is that the compressor is spinning backwards LOL

    • @Erowens98
      @Erowens98 6 лет назад +1

      Bryce Leung high pressure air is heated up, which makes it expand and causes it to fly out the back faster than it came in because hot air expands. This output is also used to spin the compressor fans, which allow for even higher density air and more thrust.

    • @SuprSi
      @SuprSi 5 лет назад

      @@Erowens98 So.. a year has passed.. please look again at the video and see if you notice what thousands of other people did..

  • @sukanwarkhasogi3341
    @sukanwarkhasogi3341 2 года назад

    Terima kasih atas ilmu yang kamu berikan guru

  • @jamesstephen7350
    @jamesstephen7350 5 лет назад +4

    This tells me how a turbo prop works...but not how a jet engine works...

    • @AnnicK.Zoloft
      @AnnicK.Zoloft 4 года назад

      The engines in this video were turbofans and turbojets, which are the 2 main types of jet engines and have nothing to do with turboprops

    • @jamesstephen7350
      @jamesstephen7350 4 года назад

      @@AnnicK.Zoloft A: In very brief, a turbojet is a jet engine, a turboprop is a jet engine with a propeller atached to the front, and a turbofan is a jet engine with a fan attached to the front. ... A turboprop engine is a turbojet with a propeller. The engine uses the propellers to produce more thrust.Aug 24, 2014
      this here is the answer everyone wanted...www.grc.nasa.gov/WWW/k-12/airplane/aturba.html

  • @DogeFrom2014
    @DogeFrom2014 9 лет назад +216

    This video still didn't teach me how jet fuel can't melt steel beams :/

    • @Smithy07sham
      @Smithy07sham 9 лет назад +12

      Enough to weaken it

    • @hikotee
      @hikotee 9 лет назад +12

      +DOGE™ enough to melt people's hearts

    • @loganeley2342
      @loganeley2342 9 лет назад +21

      I am assuming you never took a shop or metal shop class so I will explain this. if you were to take a big ass I-beam which is a structural piece of steel that is quite strong and support just the ends leaving the middle unsupported. you then put a lot of weight in the center of the beam not enough to go past it's with limit though. then you subject the beam to extreme heat such as shit load of jet fuel and I mean a shit load. there beam will heat up quite a bit. no not enough to melt it but we all know from seeing blacksmiths, that the hotter steel gets the weaker it becomes now all that weight that was on the beam is now to heavy for the heated beam and it fails. when you take a few heated beams and they fail in a building structure now you have ruined the strength and integrity of the building and more will fail.

    • @DogeFrom2014
      @DogeFrom2014 9 лет назад

      Logan Eley tl;dr

    • @loganeley2342
      @loganeley2342 9 лет назад +1

      I don't know what that means

  • @Silkroads733
    @Silkroads733 Год назад

    40 million views..most of us get on the airplane and sit down like dummies, not knowing a thing about the mechanical workings of the thing..just 10 minutes can give us a great insight to what the engineers, and designers, and pilots know…this is the good things about social media platforms, it’s a shame there’s so many bad things RUclips is a better one out of the rest..

  • @teddyteguhraharja5490
    @teddyteguhraharja5490 9 лет назад +5

    B 747 has only one engine in the left wing?

    • @233kosta
      @233kosta 9 лет назад +1

      Teddy Teguh Raharja And its compressors spin the wrong way

    • @teddyteguhraharja5490
      @teddyteguhraharja5490 9 лет назад

      233kosta absolutely. I thought so before.

    • @233kosta
      @233kosta 9 лет назад

      Teddy Teguh Raharja
      The turbine blades seem to be oriented right though, they would indeed cause the compressors to spin the wrong way :P

    • @DinoAlberini
      @DinoAlberini 9 лет назад +3

      Teddy Teguh Raharja This is called "cost reduction" XD

    • @lolovideos
      @lolovideos 9 лет назад

      Teddy Teguh Raharja It´s a special plane, the complete name is Boeing 747 twister or "tornado" as pilots like to call them. Amazing donuts in the air