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George, you may be right. I have heard your presentation and find all the data very compelling, including the point that at ROP the exhaust valve runs hotter than at LOP. Your engineering expertise also seems very impressive. But like you say, it's analysis. On paper, numbers and equations. In the real world, no one can deny the robustness of these engines when they are operated per Continental's recommendations.
And Lycoming's current response to LOP also speaks volumes: yep, we use to recommend it years ago but it led to many failures, so ROP is the bulletproof way to run these engines. So, the numbers might say one thing -- and in a laboratory environment you may even be able to show these advantages for LOP -- but up in the air, with busy and often tired pilots, some of whom are not technically inclined, do what the manufacturer tells you: stick with ROP.
Ernie
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