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Been in my little Bahamas island with essentially no Internet for 3 weeks. Saw Bob's posting about LEAN, LEAN, LEAN and had two thoughts:
A. Sorry that GMAS no longer contributes, but glad he didn't see Bob's posting or we wouldn't hear the end of it.
B. Although I agree completely with most of what he says, I do NOT recommend departing from your POH. My two Skymasters (a 337D and a 337G) warned against operating lean of peak, at peak EGT or within 50 degrees rich of peak. I follow that advice and operate about 75 degrees ROP at cruise; my plugs are clean as a whistle.
So I would change Bob's point 4 to read "Lean to 60-75 degrees ROP as soon as you get to cruise" and point 6 to "Do NOT run at low power settings (<50%) for any length of time", and I would then follow all these points religiously.
Ernie
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