Originally Posted by
heliman500
I’ve ran across a P&W engine that has an idle T5 temp limit of which is considerably less than the normal continuous operating T5 limit. Does anyone have thoughts on the logic behind such a limitation? I’ve flown other P&W equipped aircraft without any idle limit. Hoping it’s not a blazingly obvious reason that would make a fool of me 🙄Thanks in advance.
Without a specific model/engine I can only guess. But the max ITT imit should only be for the "low idle" setting on those engines with a high and low idle settings like on a King Air. Not all PW engines have a high/low setting which if I recall correctly the low idle max is due to reduced air flow through the engine at that RPM.