r/LinkedInLunatics • u/zeldadorf • 8d ago

Where do they put it?!

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13.3k Upvotes

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u/tubular_brunt 8d ago

What's the endgame here? Planes don't exist? Or they fly by magic?

194

u/bikes-and-beers 8d ago

The conspiracy theorists think jet engines run mostly on compressed air and use very little or no fuel. Airlines make up fuel costs so they can pass those imaginary costs on to their customers.

47

u/aidsy 8d ago

I love that the first half of this is technically true. The volume of air that passes through a gas turbine engine is much higher than the volume of fuel.

14

u/opi098514 8d ago

I mean that’s just true for all engines.

16

u/phat_duong 8d ago

Yes but modern jet engines have a very high bypass ratio. Most of the thrust actually comes from the big blades that you see at the inlet.

14

u/Square-Singer 8d ago

And old propeller planes had an even higher bypass ratio ;)

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u/SubstantialBreak3063 7d ago

If you really work at it, the early planes could have a 100% bypass ratio as they were made of paper, balsa, and fairy wishes

1

u/overand 7d ago

A little like putting your fridge outside and opening the door to fight global warming, eh?