The Nr Fairy:
But I can't understand how the lower power on limit is arrived at - any ideas ?
The limit is there because if you find yourself with power on and below a normal rrpm, something is wrong...
Ie.: power on AEO 98-101% with a minimum transient 95%
but power on OEI 98-101% with a minimum transient 85%
They allow you to be below 95 because you have still one engine to recover rpm.
But with AEO you must stay above 98%, if not, you or the machine is wrong, so the limit.
It's not a matter of machine limit as I understand, instead is about not be where you shouldn't .
In a power off situation you could be 90% rpm and flying , but it's safer to put the limit at 95%.
I hope to have expresed my self.
