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<< Lancair Builders' Mail List >>
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Bill writes:
<<I'm not a chemist and don't have a labratory to perform an analysis
to prove it, but I don't believe gasoline is THAT contaminated. >>snip<<
Amoco
has heavily advertised the "crystal clear purity" of their 93 octane
"Ultimate" for several years and I don't think that a multi-billion dollar
business is lying and making false claims.>>
Believe it. Auto fuel is just good enough to do the job. Amoco's "crystal
clear purity" is an interesting claim obviously targeted to the same
gullible people who buy bottled water (and pay more than gasoline prices for
it) thinking it is better for their health. "Pure what?" would be my
question. Gasoline is a blend of hydrocarbons so it cannot be pure
anything. My wife's horses generate "Pure" horseshit, which is what comes
to mind at the moment. Amoco's slogan is not false in a Clinton sense, just
meaningless.
My "insights" came from several sources, one of them being a chemist at
Chevron and the other the president of Daeco (specialty fuels). According to
them, autogas is unsuitable for aircraft use due to variations in
composition (and therefor combustion and evaporation properties) and the
lack of controls on the distribution infrastructure.
Automobiles are not littering the highway shoulders because they have good
fuel filters, they have good mixture control (and sometimes knock sensors),
they rarely operate at more than 50% of their rated power and are not
operated above about 6 feet AGL. Think about when an automobile engine is
likely to be detonating and then think about an airplane engine at takeoff.
Thinking about the same thing??
Aircraft fuel does not travel in pipelines. There isn't enough of it going
to a single place to warrant it.
MoGas is not automobile gas from your corner service station without the
road tax. It is handled just like aviation fuel from the time it leaves
refinery. Any road tax savings is made up by this special handling and by
liability costs.
If you go to your local gas station to fill a drum with fuel and then use
that fuel in your airplane, you are playing Russian Roulette, and
eventually, you will loose. Can it be done? Sure. Is it a good idea? No way.
I believe that the worst pilot is still an above average person in the
general population so loosing a pilot is like gaining a politician. Pay a
couple of extra bucks and live to tell stories to your grand children.
Regards
Brent Regan
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LML website: http://www.olsusa.com/Users/Mkaye/maillist.html
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Please send your photos and drawings to marvkaye@olsusa.com.
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