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LOP vs. ROP really isn't an emotional issue for me.
It appears to me that it works, and that the LOP advocates have done a better job of making their case with actual data than their opponents.
Nonetheless, at my level of usage (100 to 200 hrs per year) in this type of airplane, the economics don't make sense to me. If if was just a matter of buying GAMIs, the payback period would be a couple of years, and this would make sense. But with the cost of the JPI added in, the payback period is out in the 8 to 10 year range. That seems beyond reasonable to me.
Of course, there is the argument that LOP operations aside, having an engine monitor is good because of it's value as a diagnostic tool and early warning device. I think this is a valid argument, but it is very hard to quantify what value to place on this. I certainly agree with Skyking that the value of digital fuel flow is a lot easier to see.
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