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in reply to Sarah Brown

Obnoxious well-ackshually-ism

I'm sure the person who wrote this caption wasn't thinking of it this way, BUT:

That truck is stuck directly under the main fan blades of a high-bypass turbofan engine, which function essentially as a ducted propeller. They get rotated by a turbine in the jet exhaust and generate much more thrust than the escaping exhaust gasses themselves.

en.m.wikipedia.org/wiki/Turbofโ€ฆ

in reply to d2718

Obnoxious well-ackshually-ism

@d2718 Yeah, I know how a turbofan works, thanks.

Propeller is a specific thing in aviation, and that doesnโ€™t include turbofans. It does include turboprops, which is why they have โ€œpropโ€ in the name, and not โ€œfanโ€.

in reply to Sarah Brown

Obnoxious well-ackshually-ism
I know, I know. I was just playing mental gymnastics.
in reply to Sarah Brown

at which point in the propeller alignment chart is a high bypass turbofan a propeller?
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