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![]() "M" wrote in message oups.com... On Apr 26, 7:16 am, "Matt Barrow" wrote: It is amazing, how many people fail to realize that the 30% of aircraft that HAVE TO HAVE 100LL are the ones that do 70% (or more) of the flying hours. I have seen this 30%/70% number repeatedly, but I don't remember it ever came from a scientific survey, or just someones rough estimate. FAA figures. Regardless of that, this might be true in 1997, but I doubt it's true anymore in 2007. Especially if you exclude engines there're originally certificated for 91/96 avgas. Commercial operators flying large number hours have been increasingly switching to turboprop equipment in the last 10 years for things like feeder line freight, air taxi or charter. It'll take years to convert. That has contributed to the big decline of overall 100LL consumption in U.S. Do you have a cite for that last one? What's the GA activity level over the past few years? |
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