How Jet Engines Work | Part 1 : Starting

Aircraft: Boeing 777-300ER
Engine: Turbofan | GE90-115B
Aircraft systems explained.
*APU starting, Electrical, pneumatic and fuel panel switch selections.
* Engine starting (Auto) system.
Major components covered.
* N1 and N2 rotor shafts.
* Engine fan, low pressure compressor, low pressure turbine, combustion chamber, High pressure compressor and high pressure turbine.
* Aircraft Battery, fuel tank, booster pumps, and spar valve.
* Electronic engine control and Alternator.
* Accessories gear box, transfer gear box, internal gear box, horizontal and radial drive shafts.
* Fuel pump, fuel-oil heat exchanger, fuel filter, hydro mechanical unit, fuel flow transmitter and fuel nozzles.
* Start valve, air starter, air swirlers, Ignition exciters and igniter plugs.
Software's used for making the video.
* Blender 2.93 and Filmora 10.
Background music used in the video.
* Go big or go home (Filmora stock library)

[@HaikalStr]

I've seen a lot of videos on how jet engines work but none show how the engine is started, thank you for making this video

[@rw836]

true

[@grahamsalmons2027]

The engines make such a distinctive sound on start-up, I guess as resonance builds in the combustion chamber once fuel is introduced. As a 777 pilot I love these engines, they have great power. Operating in hot conductions they give massive confidence.

[@TheTb11111111]

Why would they give you more confidence than in cold “conductions”?

[@grahamsalmons2027]

@@TheTb11111111 Its not that they don’t. It’s just hot conditions are demanding of power as the air is thinner. The GE’s are extremely powerful and if you have a heavy airplane in hot or high conditions they give confidence. In cold conditions, the air is denser and power requirement is not usually an issue

[@PSYCHIC_PSYCHO]

Considering that farts are pre-filled with highly pressurised air and gas, what would happen if a swollen fart got ingested into a jet-engine?

[@TheTb11111111]

@@PSYCHIC_PSYCHO you won’t be able to stand close enough to a running engine to fart into it.

[@williamreyes27125khz]

I call it tromboning

[@donaldhollingsworth3875]

I worked for GE Aviation. I machined the front fan assemblies, high pressure turbines, & some low pressure turbine discs at Wilmington, NC. The pressure turbines are connected by a shaft to the the front fan assembly. As with all turbo fan engines, about 80% to 85% of the air being sucked into the engine bypasses the the core of the engine. This is a way to increase thrust without consuming more fuel. The GE -90 115B creates 155,000 of thrust without giving up fuel consumption such as with older aircraft. We also had a Nuclear replacement facility along with new control & fuel rods for North America.

[@Russell_Huston]

Thumbs up to GE Aviation. It's still something that GE does really well. For decades GE was the great American industrial / technology leader, but over time was thought of by investors as a finance company more than anything else, a "hedge fund that makes jet engines". Nothing stays the same, but I'm rooting for GE to keep going into the future. It will be challenging. Maybe an expanding nuclear future will give GE growth opportunities. We'll see.

[@AaronShenghao]

Now I can finally start my 777 to charge my phone without my pilots.

[@579samr]

Pppppppppppppppppppppppppppppppppppppppppppppppp

[@slowpoke96Z28]

and run some a/c...

[@maehongz707]

A

[@andreizadasilvapereira5312]

Lol

[@showshowtomakefreeenergyge2426]

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[@sedzanithilivhali882]

9 months later and this guy is still giving hearts to comments. Legend

[@marcd1981]

I'm sure it's the AI following the channel.

[@elgatogordo9523]

Miss working as a turbine test technician. We tested LM, military, and commercial turbines back in the early 90s until 2001. We enjoyed dimming the test cell lights and testing the afterburners on the military jets 👍 What a spectacular show that was 😎

[@JarretXu]

That was an incredibly well made video. The animations showed all the necessary details without being overly complicated, and the narration was clear and concise. Keep up the great work!

[@mayaq8324]

No it wasn’t

[@maxstr]

The narration is text to speech, and it's terrible

[@omarhamid6821]

I was always waiting for such an explanation like this, which helped to clarify a lot of ideas, I much appreciate this wonderful presenting the start-up procedure.

[@CHOXON2CHOXOFF]

Really true

[@MeaHeaR]

Onyér Kobblerzz 👍 ✔

[@showshowtomakefreeenergyge2426]

There's a common misconception that Airplanes use gasoline to fly. However, the truth is that they use free energy. The energy comes from the sun and the wind. The sun powers the engine and the wind pushes the airplane forward. This free energy is what allows airplanes to stay in the air for long periods of time. Even if you're a plane driver, you may not fully understand how this process works. But rest assured, it's all thanks to free energy.

[@garygolfer3243]

@@showshowtomakefreeenergyge2426 🤣🤣🤣 Good one 👍

[@abdishakurdaffe7965]

A@-@-

[@NotGarbageLoops]

This entire series is just absolutely incredible. Thank you for the awesome work!

[@luisito6314]

This was one of the best videos I've seen in a while, loved all the details and actually shows and briefly explains how 1 system leads to the next, I wanna know ALL of it! Lol Thx

[@rezar3724]

I can't thank you enough for making such an amazing video with proportional music

[@animeshjain8932]

This the greatest video I have seen on how turbofans works.

[@Ph0neMe]

I originally thought it was an official video produced by Boeing. Such a great explanation!! Thx

[@AircraftScience]

Wow, thanks!

[@aldrinantony806]

@@AircraftScience ffybm Ji Yd)22 we BB jhbn by you by hu ye Jo hu f me 0;-

[@TheEagle006]

Thank you for helping me understand engine functionality for my exams, greatly appreciated!

[@obaidurrahman3647]

From the component locations to the shape and relative sizes of the components to how they look, this is the most accurate graphic out there!! Very nice work brother.

[@razony]

Finally. Out of high school and on into college 202 on how a jet engine works. Thank you!

[@gustavogonzalez2542]

De lo mejor que he visto en mi carrera en la industria aeronáutica

[@ratfor19]

Such a great way to learn about aircraft systems, engines, etc. Love your channel! You can see all the effort in every video!

[@thedarkchocolate4700]

I work on avionics but engines have always been more intriguing.!

[@algorhythmic3904]

Good job making it simple to understand without ‘dumbing it down’ too much!

[@cinilaknedalm]

Ditch this robotic voiceover, get yourself an actual human to do it, and you got yourself an amazing channel :)

[@humble42855]

Very much agreed

[@cahyzee1773]

Thank you! I successfully started and drove this 787 with 800 passengers to Dallas but you haven't posted how to land yet so we're still up here flying, hurry up!

[@synczozo11]

Wtf did I just watch. Understood nothing but still amazed by this marvel

[@haddenindustries2922]

This is honestly one of the most informative, captive and interesting videos about aircraft science. Absolutely fantastic work 💪🏼👌🏼

[@zetheus555]

crazy how such complex engineering is invented by human beings

[@abdultairu]

This is the best how aircraft engine works I have seen. This is like watching a movie.

[@GreyBearcub]

Excellent narration, outstanding animations, easily understood and the background music is just perfect, especially when the fuel ignites, the sudden change of melody and the epicness it conveys makes justice to wonderful piece of engineering these engines are. Keep up the good work!

[@dhanushkumar803]

ONE OF THE BEST VIDEO I'VE EVER SEEN

[@BK-dy8jk]

I wondered how the sequence to begin engine combustion worked. Just that technology alone and precision manufacturing makes it a wonder of technology

[@sibongakonkengwane4734]

Thank you for showing us how this things works, I appreciate it.

[@AircraftScience]

My pleasure!

[@pushing2throttles]

As a commercial pilot and a graduate of an university aviation program, I complement you on this video. Looking forward to more and eventually building the entire plane!

[@GAMRMNTS2]

Way to go huh fwolf lol

[@albertdeka3512]

It was so informative.. I always thought it works through piston but was not sure. Fortunately, I learnt how it works.. Thankyou

[@masterelectronic8291]

Finally I found a video that show full details how a turbo jet start 👍. I have searched so many videos on KZbin but that videos show nothing just tell about APU but don't show inside animation of jet engine. Now I understood very well about turbo jet engine. Thank you very much for this video ❤️❤️❤️❤️. 🎉🎉🎉

[@justing42]

this is a turbo fan

[@Nik888100]

that was amazing explanation!!! will be great if there will be more videos regarding 777 systems and other chapters, thank you very much!!!

[@marcotokoku1898]

KZbin should be the library of high quality production such as this one

[@midnightblueMM]

As a visual learner this is really an amazing video. Thank you so much for your work!

[@Gbluesman]

My dad was a dc-9 captain, and I can always remember long wide open schematics on the dining room table of the engine that he would always study.

[@badman0078]

This will help a lot of people to understand the concept

[@anubhavgoyal04]

Perfect explanation 🔥. This video is underrated. Ive seen many videos but this clears all the doubts.

[@jaky3]

Thanks for reminding me to make sure that the APU BLEED is in AUTO. I could have forgotten.

[@brianrigsby7900]

What makes the rising humming sound as it gets going?

[@RGMLLC]

It’s the n2 compressor spooling up in rpm

[@ricardoalvarez7281]

Jamás me imaginé que se requerían tantos pasos para iniciar un motor. Excelente. 👍

[@donovanbryan5000]

Way back in air force days. I had engine run license. That was in 1980. I can still start in my sleep. But knowing exactly what was going on in the IJ85-GE-5 turbojet engines with afterburners - i just learned today.

[@cristiantorres7734]

That’s videos are amazing… Greetings from Colombia, I’m studying for my A&P license and I would like you post videos like reciprocate engines most of the time is better and easy understand questions with videos like this…. congratulations.

[@TonymanCS]

Well animated and simple to understand. Love your videos!

[@a7med088]

Great video for explaining the working principle of jet engine. Why is the music ... horror movie ! Like there is something about to explode 😳

[@IZIKI-399]

خوفنا هذا

[@therandomytchannel4318]

Great stuff, high tech engineering, fly the 777 from Vancouver BC to Manila Philippines 🙂

[@user-tt6gp4gs4v]

PERFEITO FUNCIONAMENTO DA TERMODINÂMICA . Insanely helpful! Keep up the great work!.

[@vitsirosh3722]

I'm watching all five parts from the beginning. Think I will absorb more the second time

[@amittyagiat80]

Excellent presentation with animation of each engine component. Truly an engineering marvel.

[@0dbm]

That was a beautiful video , finally I look at this things and have some idea of what’s happening , thank uou

[@tigerfan826]

These videos are a God-send. Thank you so much for your efforts.

[@AircraftScience]

You're very welcome!

[@user-rh3zy1pz6t]

Best teacher Thanks from India

[@UKAviationMovies]

Absolutely brilliant video. Thanks for making and sharing 👍👍👍

[@planelover27]

Great simulation and well explained! Good work! 🙌

[@bro7269]

Great video but I’m glad I don’t hear that music when I’m being seated on a 777….

[@wades_world22]

Incredible video !! Love the graphics and very detailed start up explanation

[@MrAsk2025]

THIS VIDEO IS VERY VERY HELPFULL TO DEMONSTRATE THE THEORY OF THE ENGINE SEQUENCE START I HOPE THERE IS OHTER VIDOS FOR OTHER SYSTEM THE SAME WAY (3D).. GOOD LUCK AND THANK YOU VERY MUCH TO MAKE IT ESAY WAY TO UNDERSTAND .. THANK YOU AGAIN

[@majidmasoudi756]

با سلام بسیار عالی و با کیفیت توضیح داده می‌شد خیلی ممنونم از لطف شما که این همه زحمت کشیده اید😍

[@Gabriel.Bonfim]

Magnificent video, thanks for making it! You have explained easily how it starts with this animation use. It's worth subscribing your channel!

[@AircraftScience]

Thanks for the sub!

[@hen-hensuhendard5996]

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[@ag6371]

5:02 This is when those deep sounds begin vibrating until idle

[@virgingalaxy5941]

finally saw an amazing video about an aircraft engine. Thank youu

[@abduahmad4167]

concise but well explained.Thanks for the refresher

[@valezeb]

Very well demonstrated...i might as well become a pilot essily watching this channel

[@sammylacks4937]

It seems to me that as far as design the jet engine is much simpler than the combustion piston engine . I understand fabrication of the jet is more difficult or at least it would seem because of balance and high rpms. To take air , cold air , compress it , then heat it to increase its volume was simple yet ingenious.

[@parveshv.merchant9806]

How many components work together.... Mind blowing. Outstanding video

[@jellybertdelattiba7603]

You are now, officially, my favorite movie maker ! Loved it !

[@AircraftScience]

Wow, thanks!

[@hrshsawant63]

Greatttttttt work!!!!! The high quality of content shows the effort that you have put in making the video!!!!!

[@deansnipah1392]

EEC stands for Engine Electronic Control. Some planes have a FADEC (Full Authority Digital Engine Control) which is the same shit just a different name. They both gets a lot of information from other aircraft systems such as ambient pressure, outside temp, etc and they all adjust the performance of an engine automatically based on all those factors. Very expensive part!

[@faganfit572]

Amazing explanation. Simple enough to be understood without over complicating the concept. New subscriber.

[@polka23dot70]

Nothing is labelled. Nobody needs background music.

[@ederavelino3313]

Nice explanation about GE90 operation. Thanks for sharing.

[@ankitmeena_ind]

अरे अब तो अपन भी इस्टाट कल्लेंगे भिया कोइसा भी इंजन, 😎

[@rajeenasd]

Really useful video. Now I got some more knowledge about engine start up 🥰

[@gdfggggg]

The tension, I was on the edge of my seat.

[@andrealeonardi3524]

Fantastico ! BRAVO , thank you very much. It’s explained meravigliosamente bene, grazie

[@sergemartalb3910]

Excellent animation and explanation!!! Thanks for share it!!

[@AircraftScience]

You are welcome!

[@russchadwell]

A soundtrack for an action sequence. Let the tension build!

[@fullsendmountainbiker5844]

Wow thanks amazing clear explanation and graphics 👍

[@aniruddhashinde]

Thanks thats very helpful, my pilot wanted salary hike, who cares i will control my own 777.

[@mohamedfaisal6202]

thank you so much for the great explanations. pls try to lower the background music.

[@NORWEGIAN-AIR-ENJOYER]

Best aviation KZbinr

[@marajevomanash]

The day we run out of jet fuel for these engines would be the saddest day for humanity. Use electric cars and save the jet fuel for these airplanes.

[@erichjeske]

Super nachvollziehbare Dokumentaiomn. Glückwunsch an Aircraft Science an tkhs Erich Jeske Schade das es in Deutsch solche Dokus nicht gibt.

[@LiemNguyen-fh6qk]

where ws this channel when I was in A&P school?...great stuff

[@UraFlight]

Well made animation! For it so complicated technology.

[@fvingerhoed]

Amazing .. still trying to understand 😊

[@noroy2]

What a great video, always is very enjoyable to watch something so explanatory.

[@b43xoit]

I'm one of those viewers who has nothing to do with the industry, but who takes in this kind of info from an excess of curiosity. Is there a short term for such people? "Foamers"? Anyway, thanks for the level of detail. I have seen other jet-start vids, but hadn't understood up to now about the low-pressure and high-pressure shafts.

[@BwInNewJersey]

Proving youtube is the master cliff note

[@monpirri10]

thanks for the video buddy, is really necesary to learn how to work this amazing engine....

[@AircraftScience]

Glad it helped.

[@mrkc10]

One of the best videos I’ve seen.

[@enginediy]

Amazing

[@valentineambrose3929]

Beautiful. Thank you so much for this video series. It's clearing so many concepts for me.

[@SeulkiLee-e4l]

This is a great video! Thanks!

[@espeescotty]

Ok, got it? Test tomorrow!

[@rafaeldelafuente4787]

very interesting. Thank you

[@jace_Henderson]

So that’s why the wind could be spinning the fan the opposite way then on start up it slowly stops and goes back the other way. It takes a while for the air to slow the gearbox down and spin it the correct way.

[@tabriz.azerbaijan-turk6056]

Thank you very much !

[@AircraftScience]

You are welcome!