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How Jet Engines Work | Part 2 : Outputs 

Aircraft Science
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Aircraft: Boeing 777-300ER
Engine: Turbofan | GE90-115B
Aircraft systems explained.
* Introduction to engine thrust control.
* Engine electrical power generation.
* Aircraft electrical load management system.
* Integrated drive generator failure protection.
* Left engine hydraulic power supply and utilization.
* Engine bleed air supply and utilization.
* Engine anti-ice system.
Major components covered.
* Thrust lever, electronic engine control, hydro mechanical unit, combustion chamber.
* Electrical buses, APU generator, galley equipment, passenger entertainment system.
* Integrated drive generator (constant speed drive and AC generator), backup generator, variable speed constant frequency converter.
* Hydraulic reservoir and engine driven hydraulic pump.
* left engine thrust reverser, ailerons, flaperon, flight spoilers, elevators and rudder.
* Air supply cabin pressure control computer, APU bleed valve and electro-pneumatic controllers.
* pressure regulating and shutoff valve, high pressure shutoff valve, fan air modulating valve and pre-cooler.
* air conditioning packs, wing anti-ice, air driven hydraulic pump, aft and bulk cargo heaters.
* Ice detector probes, engine anti-ice computer, engine anti-ice valve and engine inlet cowl.
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).

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13 май 2024

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Комментарии : 166   
@user-qo3yy9nv1u
@user-qo3yy9nv1u Год назад
I'm a diesel mechanic. Have been for 15 years and always wondered how turbine engines work and how the compressors did their job and the stages of them. This really helped.
@darrylwmurphy738
@darrylwmurphy738 Год назад
If you want to know more about jet engines? You want to check out Aircraft Science - this will give you an insight on how jet engines are built, tested and how they are "Started" There's two kinds of jet engines Airlines Fighter jets I'm taking diesel mechanics Do you remember basic theory of the steam engine?
@darrylwmurphy738
@darrylwmurphy738 Год назад
Also jet engines are different from diesel engines and a different application. Similar Diesels do require that fuel have to be primed before starting especially for locomotives. Just like for lawn motors (gasoline) have to be primed too prior to starting. But in jet engines uses duel ( JP) which can be JP-20, JP-30 up Fuel still have to go a fuel filter before the fuel pump to strain out any particles .
@darrylwmurphy738
@darrylwmurphy738 Год назад
I want share if you already about the turbocharger and the Exhaust Gas Recirculation and it's blowers Turbocharger also has a frequency.
@akhilvijay8670
@akhilvijay8670 8 месяцев назад
Still I didn't get completely
@burak.canbaz
@burak.canbaz 2 года назад
Part 1 helped me to pass aircraft general knowledge course in atpl exams, great animation and narrative, helped me a lot, thank you so much for the video and appreciated.
@StClair-gt8qg
@StClair-gt8qg 3 месяца назад
PPP 00 pp p puppy 0😮😅😅😅😅😅😅😅😅😅😅😅😅
@StClair-gt8qg
@StClair-gt8qg 3 месяца назад
😅
@Ravi-ts2kx
@Ravi-ts2kx 5 месяцев назад
This is so helpful. I'm a visual learner, and reading or seeing just some pictures alone don't really do the trick for me. These videos are a good visual representation of the procedures order for jet engine operation. Thanks a lot!
@AircraftScience
@AircraftScience 5 месяцев назад
Glad it was helpful!
@Greatdome99
@Greatdome99 Год назад
In case anyone wants to know how the generator stays at constant rpm, the 'constant speed drive' has a hydraulic pump powered by the engine G/B which powers a 'swash plate' piston engine (like your car's AC pump). As N2 speed changes the hydraulic pump increases flow/pressure, causing the angle of the swash plate to change, keeping the output at a constant rpm.
@friedchicken1
@friedchicken1 8 месяцев назад
wow tenk yu i was just wondering that
@b43xoit
@b43xoit 4 месяца назад
Interesting design choice vs. an electronic solution as used for the backup alternator.
@skyediamonds5654
@skyediamonds5654 6 месяцев назад
This is an absolutely great detailed video. Highly recommend for anyone interested in jet engine operation of airliners as the Boeing -777. Thank you very much!!
@AircraftScience
@AircraftScience 6 месяцев назад
My pleasure!
@marcoacerbi3647
@marcoacerbi3647 11 месяцев назад
Sono un meccanico italiano,e devo dire che la grafica e ottima e molto chiara e intuitiva,bravi!!
@dsarnes7
@dsarnes7 7 месяцев назад
This series has saved me so much time from reading my Boeing 777 owner's manual
@deansnipah1392
@deansnipah1392 8 месяцев назад
Usually there are 2 stages of pneumatic bleed air. The lower stage, lower temp/pressure is used to climate control and keeping the plane pressurized. The higher stage of compression uses high temp/pressure bleed air only for anti-ice systems.
@yourpapa5567
@yourpapa5567 2 года назад
Awe inspiring and detailed! Much appreciated for the video!
@neromah
@neromah 2 года назад
What an insanely detailed and well drafted video by Aircraft Science, nothing much to say about the video, simply put, ABSOLUTELY INSPIRING! ✈️🌟
@Greatdome99
@Greatdome99 Год назад
Bleed air comes from the 9th stage at idle (50% N2), switching to the 4th stage at cruise (100% N2). FAA regs require bleed air to stay below 450F (auto ignition temp of fuel) so it's always run thru the intercooler, cooled by fan air.
@aviationalphabet6193
@aviationalphabet6193 Год назад
Sir, you are simply awsome. Can't stop to praise you. Your animations helped me a lot to understand. Thank you
@billyost1479
@billyost1479 Год назад
As an turbine engine repairman for helicopter and fixed wing prop aircraft... I'm addicted to this.
@satyaranjanbehera1538
@satyaranjanbehera1538 2 года назад
The animation is really awesome.. Please make more video on GE 90 and B-777 aircraft.
@one.darkstar
@one.darkstar Год назад
Awesome videos, and the music wow. I'm a mechanical engineering student and am always fascinated by evolution of technology. Watching this video made me realize that its a wonder how humanity has achieved so much and continues to push further. So many components, so much complexity and prone to failures, and making it all work at once! And you showing it all beautifully with an exciting music. Thank you for your work. Subscribed.
@CHOXON2CHOXOFF
@CHOXON2CHOXOFF 2 года назад
Amazing explaination with amazing animation. Easy to understand
@alphadeltalosmartineztech.6542
@alphadeltalosmartineztech.6542 2 года назад
part 1 and 2 helped me a lot thanks a lot
@Berlin-Ost
@Berlin-Ost 2 года назад
Great job, thanks!
@tonybarnes3658
@tonybarnes3658 Год назад
This is brilliant!!! How good are the people who design, manufacture,and service these incredible pieces of technology??!! This is mind blowing!! Strewth, how complex must the systems be in UAP/UFO/whatever the new acronym type vehicles?!
@erdum
@erdum 8 месяцев назад
I have flown aircrafts in simulator and I also know technical details about how systems works but always wondered to learn in depth and in your video you just blown my mind and you have satisfied my knowledge crave. Hats off to you man❤
@AircraftScience
@AircraftScience 8 месяцев назад
Great to hear!
@ks438
@ks438 Год назад
Awesome job!!!!
@praveenshetty2066
@praveenshetty2066 2 года назад
Very informative video, nice work👍
@anthonyf.9170
@anthonyf.9170 Год назад
Excellent video and tutorial. 👍
@marciomedeiros1173
@marciomedeiros1173 2 года назад
Excellent!
@khamnei
@khamnei Год назад
Amazing visuals well done
@tuncaypekdemir7131
@tuncaypekdemir7131 2 года назад
Awesome , many thanks 👏👏
@gouthambalu3795
@gouthambalu3795 2 года назад
Super bro exilanted 👌👌
@aircrafter7505
@aircrafter7505 4 месяца назад
It's marvellous how engines are made
@faganfit572
@faganfit572 Год назад
What an amazing aircraft. But what an even more amazing animation and explanation. Wish I had something like this for my own aircraft (ATR). Great work man.
@AircraftScience
@AircraftScience Год назад
Glad you enjoyed it!
@anarabbasov5910
@anarabbasov5910 Год назад
This is really helpful and awesome video
@Onthecoach
@Onthecoach 6 месяцев назад
This is very helpful
@mrkc10
@mrkc10 2 года назад
Excellent video
@bigredc222
@bigredc222 Год назад
Very good. Thank you.
@leandrobustillosfernandez
@leandrobustillosfernandez Год назад
EXELLENTEXCELLENT PRESENTATION IN DETAIL.
@wattsmichaele
@wattsmichaele Год назад
This is alien tech….no joke
@privskorp.9865
@privskorp.9865 Год назад
Thanks thanks thanks for these masterpiece
@admensch
@admensch 2 года назад
WONDERFUL 💫
@GreyBearcub
@GreyBearcub 4 месяца назад
I really want to know the background melodies you have used, it makes the whole video and animation feel epic and majestic! This series is by far one of the best found in RU-vid and the channel has much potential. I hope success is always with you, keep up the good work!
@AircraftScience
@AircraftScience 4 месяца назад
"Go big or go home" is the title of the background track. It's available in the Wondershare Filmora audio library.
@GreyBearcub
@GreyBearcub 4 месяца назад
@@AircraftScienceThank you very much, I hope to see more of your fine work!
@raymondzhao9557
@raymondzhao9557 Год назад
this video is gold!
@rfd87
@rfd87 Год назад
Thank you very much
@denizturan5940
@denizturan5940 2 года назад
Thanks for sharing. I waiting for B787 Gnx 1B Engine opetation impatiently
@demal1010
@demal1010 Год назад
My question is how does the constant speed drive, drive at constant speed? Is it using something like an automatic transmission with a planetary gear set? Also you said the electrical systems needs two sources to run everything, but I've seen the apu alone run everything, for example during pushback before engine starting
@sorgfaeltig
@sorgfaeltig Год назад
At time 1:41 there is an ERROR. The aircraft electrical systems don't work at 415 Hz. They work at 400 Hz. Probably the creator of this video mixed the "15" from the voltage of the 3-phase electrical system which is 115 Volts phase to neutral, whis is 200 Volts phase to phase.
@eddievhfan1984
@eddievhfan1984 Год назад
I was wondering about that; 400 Hz being the standard for air/sea "shore" power, I would figure most external power units would never be able to sync if that was the case.
@sorgfaeltig
@sorgfaeltig Год назад
@@eddievhfan1984 The external ground power units are designed to provide 115V/400V 3-phase 400Hz 75kVA. There is no need to "SYNC". The aircraft switched either to external power OR internal power. The sychronization of the 400Hz power is only performed when the two generators from engine #1 and engine #2 are switched to parallel mode.
@eddievhfan1984
@eddievhfan1984 Год назад
@@sorgfaeltig I was aware of that; what I meant was that if the IDGs ran off of 415 Hz (as claimed by the video) instead of 400, then when external power was provided to the aircraft, the GPU would simply trip its breakers due to not being frequency-synchronized; essentially a proof by contradiction/absurdity. And in any case, my understanding was that external power is paralleled with the other sources on the bus for load-sharing to minimize stress on equipment when transferring between sources, as opposed to a hard switch.
@therayanmusic4240
@therayanmusic4240 Год назад
Thank you.
@dilandias4018
@dilandias4018 4 месяца назад
It's very useful video....
@user-jf5ct6mb1c
@user-jf5ct6mb1c 2 года назад
This video is very cool
@brauliorendonmancilla6633
@brauliorendonmancilla6633 Год назад
Thanks for you information, congratulations.
@AircraftScience
@AircraftScience Год назад
Our pleasure!
@candidochaves6980
@candidochaves6980 2 года назад
Amazing🤘🤘🤘🤘
@hrishikeshdesurkar10
@hrishikeshdesurkar10 Месяц назад
Can someone please explain how the air from the high pressure compressor is hot enough for the anti icing system ? It collected from before the combustion chamber
@cesarmatiasbalderrama3658
@cesarmatiasbalderrama3658 Год назад
Buen video
@b43xoit
@b43xoit 4 месяца назад
"A bad weather condition" is exactly the same thing as "bad weather", but requires more words to say and hear.
@ea-13
@ea-13 2 года назад
Your video is amazing and very beneficial for everyone who wants to learn engine and aircraft. Which program do you use to visualize aircraft’s engine ? I want your permission to download your videos.
@AircraftScience
@AircraftScience 2 года назад
The animation was done using the blender software. You can download the videos for educational purposes.
@hen-hensuhendard5996
@hen-hensuhendard5996 2 года назад
SUNGGUH SANGAT MENAKJUBKAN .
@anassule6468
@anassule6468 4 месяца назад
Lovely
@badman0078
@badman0078 2 года назад
Nice👌👌👌
@0304conde
@0304conde Год назад
Great video, just to mention that the IDG output is 400hz and not 415hz.
@Greatdome99
@Greatdome99 Год назад
Yes, 400 Hz, three-phase AC.
@ballaki
@ballaki Год назад
Good
@shoaibsial4288
@shoaibsial4288 2 года назад
please have request to make videos on B777 ATA 31 and ATA 45. Thanks
@traveladventuresandfoods.6195
@traveladventuresandfoods.6195 9 месяцев назад
Hello. I am an electrical engineer and work on turbo compressors. I watched part 1 and 2 of your video with great interest. These are best 2 videos on jet engines, I have ever seen. One question about electric generator attached to the engine. Why this is designed on frequency of 415 Hz. ? I have never heard of 415 Hz frequency. It is most commonly 50 Hz in Asia and Europe and 60Hz in America and Canada. What are the voltage then?
@AircraftScience
@AircraftScience 9 месяцев назад
Hi, I've made an error in the video; the frequency is 400 Hz. Airplanes use 115 volts, 400 Hz power because it reduces their total weight. The higher frequency reduces the size of electrical components (transformers, generators, and motors).
@traveladventuresandfoods.6195
@traveladventuresandfoods.6195 9 месяцев назад
@@AircraftScience Thanks very much. That is great information foe me.
@AircraftScience
@AircraftScience 9 месяцев назад
@@traveladventuresandfoods.6195 My pleasure!
@josephjeno6709
@josephjeno6709 Год назад
How engine combustion blades are cooled
@byantara2227
@byantara2227 2 года назад
Damn youre so good, love it👍🏻👍🏻. Can you also make for boeing 737?
@AircraftScience
@AircraftScience 2 года назад
Thanks for the suggestion. Will consider it after I'm done with the B777 series.
@jaiyp77
@jaiyp77 2 года назад
I'm so excited to see your next video, Do you have any other channels I can follow your progress? . Love you😍😍😍
@AircraftScience
@AircraftScience 2 года назад
Hi, this is the only channel I have.
@jaiyp77
@jaiyp77 2 года назад
@@AircraftScience Facebook, IG, twitter, etc.
@AircraftScience
@AircraftScience 2 года назад
Currently I have nothing on the platforms you mentioned. Will let you know if I come up with something.
@jaiyp77
@jaiyp77 2 года назад
@@AircraftScience OK^^
@Fernandodcj
@Fernandodcj Год назад
What’s the temperature inside the combustion chambers at max power? How it walls doesn’t melt? Anything to cool its walls? What are the fuel injectors made of?
@Grouuumpf
@Grouuumpf Год назад
Hot. Like, hot enough to melt steel, with some margin. But! That's only for the core. The combustion chamber is in two parts, the outer one is airtight but the inner one, where the flame is, is perforated to have a layer of fresh air between the wall and the flame, and to keep supplying more air to mix with the unburnt gasses. *Can* be made of some steels, though I believe it's usually a titanium alloy
@user-qo3yy9nv1u
@user-qo3yy9nv1u Год назад
All good questions. I've wondered the temp difference of that against a diesel engine under boost.
@eddievhfan1984
@eddievhfan1984 Год назад
It's also worth mentioning that for control of engine temperature, the fuel/air mixture is significantly leaner than that found in internal combustion engines, as running a jet engine at its most optimal stoichiometric (full-burning) ratio generates enough heat to melt the engine. So there's a lot of excess air on hand to provide cooling.
@user-ru8ko8kn5u
@user-ru8ko8kn5u Год назад
ผมรู้วิธีการจุดระเบิดจากเครื่องยนต์เครื่องยนต์ แล้วครับ ครูไม่ต้องไปปรับเปลี่ยนอะไรเลยครับแค่สร้างที่ครอบยื่นออกมาแล้วก็สร้างที่ปิดเปิดเหมือนช่องระบายอากาศ วิธีการนี้วิธีเดียวครับที่จะทำให้ จุดระเบิดจากเครื่อง ยนต์เจ็ท ได้ครับ
@Onthecoach
@Onthecoach 6 месяцев назад
Please do more
@AircraftScience
@AircraftScience 6 месяцев назад
Will do!
@coolfreaks68
@coolfreaks68 9 месяцев назад
*At **6:00** - the engine starts powering the pneumatic actuators and the background music changes.*
@x-gamessimulator1067
@x-gamessimulator1067 2 года назад
1:10 What is the name of the background song? I liked it a lot and it fits a lot with the video...
@AircraftScience
@AircraftScience 2 года назад
The background music is called Go big or go home, it's from the Filmora stock library.
@x-gamessimulator1067
@x-gamessimulator1067 2 года назад
Thank you🙂
@andreizadasilvapereira5312
@andreizadasilvapereira5312 Год назад
Part 1 is a perfect video to start a 777 in cold and dark
@fatihkunduz38
@fatihkunduz38 Год назад
115 V 400 Hz Not 415 Hz...
@jeanclaudelavallee4919
@jeanclaudelavallee4919 Год назад
what choosing 415 hertz power supply ? why specifily 415 hertz ? easier to filter ?
@AircraftScience
@AircraftScience Год назад
A higher frequency (415 Hz) helps reduce the weight of heavy electrical components on the aircraft.
@alanwright5492
@alanwright5492 4 месяца назад
Isn't the 415 figure voltage, and not hz?
@AircraftScience
@AircraftScience 4 месяца назад
The aircraft power systems operate at 115V and 400Hz.
@dilandias4018
@dilandias4018 4 месяца назад
Please make the same video B787
@SsenyonjoSimon
@SsenyonjoSimon 5 месяцев назад
What softwares do you use sir
@AircraftScience
@AircraftScience 5 месяцев назад
Blender for animation and Filmora for video editing.
@10msivana
@10msivana 2 месяца назад
Better make sure you don't shut down the right engine incase the left engine has a bird strike, or else its a 70 ton glider
@michaelharrison2775
@michaelharrison2775 Год назад
Something thrusts the veins which in turn
@kailashsingh9737
@kailashsingh9737 Год назад
Very beautiful sweet
@billsmith7320
@billsmith7320 Год назад
I got a idea try a prop.
@TrongNguyen-dv1ir
@TrongNguyen-dv1ir Год назад
Các em nghĩ là cái gì chứ là những quả bit tong nổ và sả lực đẩy mạnh và những cánh quạt nó quay
@scottl.1568
@scottl.1568 11 месяцев назад
Yeah that's right
@loxy4239
@loxy4239 2 месяца назад
Does anyone know what music this is?
@AircraftScience
@AircraftScience 2 месяца назад
Go big or go home (Filmora stock library).
@jerry-rw4zq
@jerry-rw4zq Год назад
What software u used?
@AircraftScience
@AircraftScience Год назад
Blender.
@MrFrediou
@MrFrediou Год назад
Thank you good video! The music is distracting.
@user-bn4fb7xd4p
@user-bn4fb7xd4p 3 месяца назад
Why is it 415Hz instead of 400Hz?
@AircraftScience
@AircraftScience 3 месяца назад
That was an error.
@thegallantsaint2034
@thegallantsaint2034 Год назад
Now I understand why jet engines are covered in “spaghetti” pipes.
@darrylwmurphy738
@darrylwmurphy738 Год назад
Similar to Energy Bleeding
@robertmbugua4691
@robertmbugua4691 2 месяца назад
Mi too
@mysticwine
@mysticwine 9 месяцев назад
It's essentially a diesel on steroids...
@x-gamessimulator1067
@x-gamessimulator1067 2 года назад
1:10 What music?
@andreizadasilvapereira5312
@andreizadasilvapereira5312 Год назад
Go Big Or Go Home (by Filmora)
@Tasty_Nuggets2327
@Tasty_Nuggets2327 Год назад
“Your going to obey me” are you kidding me
@TrongNguyen-dv1ir
@TrongNguyen-dv1ir Год назад
Đâu phải là phi công giỏi nhất là có thể hiểu biết được hết tất cả đâu nhìn thấy cũng chưa chắc đã hiểu biết được để rồi nói là bộ phận máy cũng chưa chắc đã rành
@revinot
@revinot Год назад
If this was a class i would fail
@sfxskylargrey2825
@sfxskylargrey2825 Год назад
can someone pls help me elaborate more about the numbers on n1 and n2? what is it indicate for? rpm? thanks
@mobius7089
@mobius7089 Год назад
Yeah percentage of maximum RPM
@Vancesez
@Vancesez Год назад
N1 corresponds to the inlet fan and N2 is the rear compressor. Engine industries use terminologies to isolate areas within the engine, usually called stations, for example the front of the engine is station one, as in N1. N2 compressor is in station two. Station numbers increase moving aft, it's helpful when identifying and translating specific locations in the engine for maintenance and troubleshooting. Bore scoping the engine is a good example. A good ballpark for rpm is multiply raw rpm by 100 for N1 speed and multiply N2 by 150. For example, if the engine is idling at 65% rpm N1 speed will be 6500 rpm. Percent rpm is a practical method of gauging engine speed/rpm and an industry standard.
@jerrywatt6813
@jerrywatt6813 Год назад
Good luck to you young folks going for you're a&p license ' just study twice as hard as you think you need to that's what I did and you will pass you're pas you're exams with ease ' my boss said about my license remember it's a license to learn ! You will never know it all be safe and when jn doubt get help !
@TrongNguyen-dv1ir
@TrongNguyen-dv1ir Год назад
Nhìn thấy cũng phải hiểu rõ ràng và phải biết cách làm việc chứ không phải nhìn thấy cái nói lung tung
@clearthings9282
@clearthings9282 Год назад
👍👍👍👍👌👌👌👌🤝🤝
@Chuchoelloco
@Chuchoelloco Год назад
But what makes the engine start to rotate?
@AircraftScience
@AircraftScience Год назад
Please watch the first installment in the series to learn how the engine starts. Here is the link: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-AdCcbBhondA.html
@roncasa4042
@roncasa4042 Год назад
👍👍🎈🎈😁😁😀
@user-jf5ct6mb1c
@user-jf5ct6mb1c 2 года назад
Hi
@JoeyLovesTrains
@JoeyLovesTrains Год назад
Why 415Hz?? Did you mean to say 415 volts? Because if it was a 415Hz generator, it would need to go through a ac-dc-ac transformer in order to power cabin entertainment, due to the fact that all outlets are 50/60Hz
@AircraftScience
@AircraftScience Год назад
Yes, the generator gives 415 Hz output. An in-seat power supply (ISPS) converter changes 415 Hz to 60 Hz for the power outlets.
@JoeyLovesTrains
@JoeyLovesTrains Год назад
@@AircraftScience why does it supply 415Hz? Are you aware of any specific reason it can’t just be a regular 50Hz or 60Hz generator?
@AircraftScience
@AircraftScience Год назад
A higher frequency (415 Hz) helps reduce the weight of heavy electrical components on the aircraft.
@JoeyLovesTrains
@JoeyLovesTrains Год назад
@@AircraftScience ohhh that’s super cool!
@sorgfaeltig
@sorgfaeltig Год назад
@@AircraftScience NO, the generator does NOT give 415 Hz output. It gives 400 Hz output. The outlets for the passengers are only a minor unimportant part in the entirety of the electrical aircraft system. It is an on-essential system that has its own converter to convert the 115V 400Hz power via rectifiers and converters to "household devices-compatible" 115V/60Hz or 230V/50Hz
@bondemupazanyini4706
@bondemupazanyini4706 2 года назад
It bothers me that the animation at some point the engine is rotating wrong direction
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