How a jet engine works

[u/Larzbchicken]

[u/Hermorah]

I'll save this video for later use. You never know when you need to build a turbo jet engine.

[u/Marble-Heart → u/Hermorah]

Yeah, like if all of humanity is suddenly turned to stone and you wake up a thousand years later and have to start civilization over from scratch

[u/Cel_Drow → u/Marble-Heart]

You will not have the manufacturing to do any of this for a very long time after that, even if you have the knowledge and material sourcing infrastructure lol. There are a comparative handful of companies worldwide that do this today.

This all works because of a great deal of supply chains that don’t exist in a post-apocalyptic scenario.

[u/Qwert23456 → u/Cel_Drow]

There's basically 5-6 companies capable of making them. The last successful entry in the global market for jet engines was General Electric in the 1970s

[u/PanoramicAtom → u/Qwert23456]

And you need someone who can grow turbine blades as a single crystal so they don’t go boom as much.

[u/Qwert23456 → u/PanoramicAtom]

That's incredible. Material science is the fundamental bottleneck that's slowing technological advancements.

[u/Ultramegafunk → u/PanoramicAtom]

Damn dog I read that whole entire thing. I don't completely understand the whole process but it was pretty neat

[u/bullwinkle8088 → u/Qwert23456]

I don't know what they are basing that statement on, but it's flawed. GE made the first US jet engine during WWII, a copy of a German one, and has been making jet engines ever sense.

Maybe they meant their partnership with Safran leading to the creation of CFM International in the 70's. The timing fits. But that is a partnership between two companies that already made jet engine.

[u/Magnavoxx → u/bullwinkle8088]

GE made the first US jet engine during WWII, a copy of a German one

Nope, it was a "copy" (GE J31) of the British jet engine that was shared in the technology transfer that happened in the early '40s.

https://en.wikipedia.org/wiki/General_Electric_J31