How Auxiliary Power Units Work | Part 3 : Performance

Aircraft type.
* Boeing 777-300ER
APU engine.
* Honeywell 331-500
Aircraft systems explained.
* APU surge control system
* APU air turbine starter system
* APU fuel control system
Major components covered.
*
* APU engine, air inlet duct, APU controller, AC generator, air supply cabin pressure controller.
* Load compressor, accessory gearbox, fuel pump, inlet guide vanes, APU shutoff valve and check valve.
Software's used for making the video.
* Blender 3.6 and Filmora 10
Background music used in the video.
* Dynamite (Filmora stock library)

[@john.enospahitamos3596]

Ive been reading chapter 49. But this one gives me clearer explanation. Magnificent!!

[@thuokagiri5550]

i dont have any formal training in aeronautical eng. But i can make a safe guess, no professor is gonna give such an elaborate understandable explanation.

[@mehdimirza8777]

Excellent Explanation good service to Humanity very nice job

[@ChristopheLedard]

Tremendous. We're waiting for others ATA explanations. Thanks a lot !!!

[@AircraftScience]

Most welcome!

[@grantnaval4519]

Thanks as always, brotha!
The beauty and simplicity of the APU... Is amazing and critical for most uses in the B777. Or even in other aircraft types.
Because most of them uses a single brand or an alternate brand. Haha.
Again! Amazing videos and an inspiration to the engineers and technicians out there!!!

[@AircraftScience]

Couldn't agree more!

[@ccacrislan]

Fantastic job, thanks, really appreciated, looking forward to the next part 👍👏👏

[@AircraftScience]

More to come!

[@owaissheikh2359]

Thank you for your hard work. Please keep making this quality stuff. I find it very helpful as I myself am a b777 aircraft maintenance technician.
I have a request. Make a video on air-conditioning system.

[@AircraftScience]

Thanks, will do!

[@kid_missive]

These are SO GOOD.

[@navigatorstrato7232]

非常好视频，爱来自中国

[@kidsaviationmentour]

Awesome ❤

[@mubashirghani9344]

Excellent job❤

[@x-gamessimulator1067]

Please, publish the video of the 737 MAX.

[@hotdogparadise2610]

Amazing video! This is probably the best explained breakdown I’ve seen and I’ve been in the APU industry 15 years. I’ll just point people here next time someone asks me what they do! 😂
I have some questions regarding use of the video for a new project I’m working on. Do you have an email or another way of contacting you?

[@AircraftScience]

Feel free to use the video for educational projects.

[@hotdogparadise2610]

@@AircraftScience Is there anyway you can upload the full 3 part series somewhere for me to download a high res version? RUclips only allows me to download 720p. I'd like to splice some segments you've created into another video I'm making. You're channel will of course be credited :)

[@Anas-ij8qf]

Wow

[@DNModels]

IDG video please!

[@aarnavgiri7498]

How does the APU lubrication work?

[@AircraftScience]

I'll cover the APU oil system in the fifth part of the series.

[@ChristopheLedard]

Merci !

[@user-jg9eb6hz6k]

bro dont do parts. pls make a long video
the posting sequence is very late i forgot what was the part two and 1

[@charanmeduri]

1st view

[@luisgustavoviolilatam4338]

Marvilloso video....