Thanks Jabba. I guess I am looking for something in an AFM that says, look at the EGT, lean until peak, then continue leaning until 50 (or whatever) cooler. Are there any examples of this? The
Lycoming Flyers I've read specifically deal with leaning using EGT but don't mention this technique.
Do any of the engine monitors come with AFM supplements that specifically say to operate LOP?
You've all convinced me that you each believe in your opinions, and I would be keen to come to the course advertised in this thread, but it would be pointless for the operation I'm involved in without compliance with CAR 138 (my mother's presence aside - thanks for that one) as CASA sees it. All the flight manuals in the operation I'm involved with say lean to peak EGT (best economy) or peak + 100 ROP for best power.
Creampuff et al, you have convinced me you believe in the danger of operating slightly ROP, no need to rehash that again, when I am asking about operations LOP.