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Posted for "Brian Barbata" <barbatab001@hawaii.rr.com>:

Brent Regan is the only guy who's got it right. All the technical
discussions of temps, range, etc. are minor compared with the detonation
risk, which increases with LOP power settings. The fact that someone has
been running LOP for hundreds of hours successfully is beside the point. If you run LOP at 80% and forget about it because of some distraction,
detonation may be your reward upon descent. The other LOP detonation
scenario is a small piece of dirt getting into an injector nozzle. Normally, you might get an almost unnoticeable sputter, soon clearing itself. But if you are LOP, you might get detonation....a one-way ticket.

It's theoretically a manageable risk, but so are a lot of other things that bring airplanes down. How many "manageable risks" would you like in your cockpit? The fewer the better for me!

Brian Barbata

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Please send your photos and drawings to marvkaye@olsusa.com.