Apparently airline jet engines lose ~80% of their thrust within 1 second after fuel is cut. However this seems to conflict with long throttle-down times noted in another question.
This lead to a couple of questsions:
- How long do jet engines really need to throttle down?
- How do they react to fuel-cut or moving the throttle to idle (see first question)
- Why the difference between the two answers?
- If an engine is throttling down quickly, does the rotation speed of the engine really drop by 80% within 1 second? How does it slow down so quickly, is there so much friction?
I'm mostly interested in commercial passenger transport airline engines, not GA, military, ...