How Auxiliary Power Units Work | Part 4 : Design

Aircraft type.
* Boeing 777-300ER

APU engine.
* Honeywell 331-500

Aircraft systems explained.
*

Major components covered.
*

Software's used for making the video.
* Blender 3.6 and Filmora 10

[rudrajyotiroy]

Great work. This channel is underrated!

[demal]

Requesting a series on the cooling packs and pressurization systems please

[rubes]

This was such a great video series, and could not come at a better time whilst revising my ATPL level systems knowledge!! 🤩😂

[john.enospahitamos]

So accurate. Dont stop please. Thanks!

[vstore_happiness]

You explained it so well! I can see the effort you put into this. Great job!

[DropBear]

Very well researched, produced, and presented. Educational too! As another commentor mentioned, this channel is truly underrated and deserves many more subscriptions and views.

[gianfrancoluishoyos]

Great video! Thank you so much for sharing knowledge

[cielitorobles]

At 5:18 it is not a propeller, its a turbine. Yes it looks like a propeller but it is not.

[trolltube]

Thank you for fascinating content. Waiting for the next episode.

[kbd]

Amazing. You are doing a great Job. Thanks again!

[ZARuslan]

Very cemplex and sopfisticated system.

[Quatuux]

5:18 the ram air TURBINE is a TURBINE not a propeller!

[gopalahs]

Can you make a video on how oxygen generation system and emergency oxygen generation system works

[harishchoudhary]

hello sir one confusion is there please reply... after the engine starts the bevel gear is attached to the main shaft is removed from there or not.

[RachtifasaSomane]

Can you create a new account to all your videos in french?please

[zachansen]

Does the ram air turbine not retract when the APU comes online? Seems like you'd want to not have that drag once it wasn't needed anymore .. especially because you don't have any thrust.