Jet Engine - Explained

I had a request for an explanation of jet engines, so here's my response. There are many videos that explain this, so I'm trying a different approach and including some other details. Also attached at the end is the combustor video link which helps explain what occurs after the air is compressed.

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[Nick-xcfy]

Literally the clearest explanation I could find and it's like 6 years old. Thanks!

[EngineeringExplained]

Unfortunately I stick to automotive based videos now. Cheers

[andrerrie]

I’m subscribed for a few years but Never knew of this video until i wanted to find out how jet engines work lol.

[EngineeringExplained]

@Aexotica Yes, the fuel is sent into the combustor via fuel injectors.

[EngineeringExplained]

@TheTerribleSwede Well, I'm no expert on turbine engines. Thanks for the tip; I made this video for a student who wanted help on a project.

[EngineeringExplained]

Not sure about the pitch, it could be equal with the speeds of the following props increasing, or it could be as you've described, or a mix of both.

[yummyzerg]

Wasn't the easiest to follow in the beginning, but I'm very happy that I watched it through - this was the best explanation I've had so far. Thanks!

[EngineeringExplained]

I'm not sure. I don't think so, but if the material was flexible I suppose it could, or if it were controlled somehow to increase/decrease the suction force. As far as I know though, I believe they are fixed.

[Micknesss]

Wow found one of your early videos mate! Love the hairdo and the wooden framed whiteboard!
Your confidence in presentation has grown massively since this vid, you're a natural now :)
Keep up the good work

[EngineeringExplained]

@Aexotica Just like in cars, large turbines can have starter motors that rotate the main turbine to get things started (starts the rotation of the compressor). If it's a small engine, like for a model plane, you could even just put a fan up to it to get it started (or a hair dryer!).

[EngineeringExplained]

Not sure about the overheating, it certainly creates more heat, but I'm not sure how much of it affects the aircraft. Fuel consumption goes way down though, for sure.

[EngineeringExplained]

@TheTerribleSwede No, just using it as a demonstration to show how the different stages of the compressor rotate at different speeds.

[askersatz]

I love your work and really appreciate your knowledge and effort to do this stuff. Thanks, man!

[viktorrosen]

wow this was the best explanation i could find, even though it is 18 years old! Thank you for saving my school project!

[MH-vesz]

This video is so clear! You are a great teacher! I'm a pilot, preparing for initial training on a jet.

[kielerrr]

These whiteboards should be framed for how easy they are able to summarize and make understandable very complicated subjects..

[mehdibouchebri]

+Engineering Explained can you please make an updated video ?

[vishveshtadsare]

This is why teaching method hasn't changed in 200 years. I have seen many videos on jet engine working where they explain with animation but this one I understood the most. Thank you.

[josephburton]

Thank you very much I’m taking an Airframe and Power plant test tomorrow and i really couldn’t wrap my head around how it works. I really appreciate it

[EngineeringExplained]

Likely some arms that reach across and hold it on bearings.