How Jet Engines Work | Part 2 : Outputs

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).

[АлакПатрова]

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.

[Greatdome]

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.

[TC-BCN]

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.

[skyediamonds]

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!!

[marcoacerbi]

Sono un meccanico italiano, e devo dire che la grafica e ottima e molto chiara e intuitiva, bravi!!

[Ravi-tskx]

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!

[neromah]

What an insanely detailed and well drafted video by Aircraft Science, nothing much to say about the video, simply put, ABSOLUTELY INSPIRING! ✈️🌟

[aircrafter]

It's marvellous how engines are made

[lawan]

this video helped me to pass my flight exam for a private pilot licence. Thank you❤

[aviationalphabet]

Sir, you are simply awsome. Can't stop to praise you. Your animations helped me a lot to understand. Thank you

[dsarnes]

This series has saved me so much time from reading my Boeing 777 owner's manual

[Greatdome]

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.

[one.darkstar]

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.

[CHOXONCHOXOFF]

Amazing explaination with amazing animation. Easy to understand

[yourpapa]

Awe inspiring and detailed! Much appreciated for the video!

[erdum]

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❤

[GreyBearcub]

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 YouTube and the channel has much potential. I hope success is always with you, keep up the good work!

[billyost]

As an turbine engine repairman for helicopter and fixed wing prop aircraft... I'm addicted to this.

[Mechanic]

I love watching your videos very easy learning thank you soo much

[deansnipah]

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.