Again, this is what is so hilarious about these "arguments" (which aren't arguments at all).
So the all-knowing manufacturers produce a POH that says: "Lean the mixture and note the point that the temperature peaks and starts to fall. Increase the mixture until the EGT shows a drop of 25 degrees F below peak on the rich side of peak." (Quote from a real POH.)
I keep asking this question of the "experts" like yr right contributing to this thread, and keep getting no answer:
How does the pilot know if all cylinders of an engine adjusted in that way are running rich of peak?
The fact that the pilot is blissfully ignorant of where the cylinders that aren't driving the EGT guage are on the lean curve doesn't stop them from being at peak, or lean or peak or richer than 25 rich of peak.
I suppose it raises the philosophical question: if a cylinder is running LOP in the forest, does anbody hear?
Maybe CHT depends on whether the pilot
knows if the cylinder is running LOP: hotter CHT if she knows; cooler if she doesn't.
Data produced from the operation of tens of thousand engines operated for millions of hours shows the relationship between EGT and CHT. Those data show that CHT will be cooler at 25 LOP than at 25 ROP.
But nooooooo. Your clys will be cooked and your wings will drop off if you operate at 25 LOP instead of 25 ROP!
It's hilarious.
