Gasahol Update

T o d d P a t t i s t wrote:
"Sport Pilot" wrote:


Alcohol is completly soluable in gasoline, in fact adding a small
amount of gasoline to model airplane fuel is sometimes done to improve
starting and increase engine heat during the winter. The confusion is
that you can also mix water gas and alcohol and have the three
completely disolve. So why didn't the water disolve into the gas and
alcohol mixture?


A typical gasoline-alcohol automotive fuel blend can
dissolve water up to only about 0.6 or 0.7% at 70°F. Beyond
this the water forms a separate layer and the alcohol
preferably is dissolved in that layer.


Has anybody verfied that this method works all the time? I have a
hunch the rusults can vary depending on vibration and temperature.


If the maximum 0.6 or 0.7% water/gas/ethanol blend at 70°F
is cooled, both the water and some of the ethanol become
insoluble in the gas. The result is two layers of liquid -
an upper ethanol-deficient gasoline layer and a lower
ethanol-rich (about 75% ethanol) water layer. If more water
is added, the lower layer of water increases in volume and
continues to preferentially dissolve the ethanol.

The test method uses 10% water, far more than the maximum
that can be dissolved in the gas/ethanol blend, so it always
forms two layers and sucks the alcohol out of the gas.


Do not spin this aircraft. If the aircraft does enter a spin it will return to earth without further attention on the part of the aeronaut.

(first handbook issued with the Curtis-Wright flyer)


Todd,

So what your saying is that if you have ethanol rich gasoline, just add
water and shake and what your left with is gasoline without ethanol.

Sounds like a good way to purify gasoline.

Dave

RST Engineering wrote:

The EAA web page gives instructions on gasahol up to 5% alcohol and how to
safely burn it.

Which page? The EAA page I read states "DO NOT FLY" (caps in original) with over
1% alky. In fact, you posted a copy of that page.

George Patterson
Why do men's hearts beat faster, knees get weak, throats become dry,
and they think irrationally when a woman wears leather clothing?
Because she smells like a new truck.

wrote

So what your saying is that if you have ethanol rich gasoline, just add
water and shake and what your left with is gasoline without ethanol.

Sounds like a good way to purify gasoline.

Except for the gas that now contains .7% water. I know, burn the gas, and
it will leave the water!

No? Oh well, it was an idea. Not a very good one, but an idea,
nevertheless. ;-)
--
Jim in NC

"Sport Pilot" writes:

One thing about mogas, it is best to get the mogas that airports have
.They typically get car gas that does not have the car gas additives.

Total BS, most FBO's that sell mo gas are either small mom and pop
operations that do not have a very large tank to ask the local
distributer to eliminate the aditive package, or they only offer it
because they are also using it for their ground equipment. Besides the
additives are only detergents which would only help to get rid of
carbon and lead deposits. The alcohol is added at the refienery not
the distributer.


I wonder about that... I worked in the fuel business eons ago. The
additives WERE injected at the marketing terminal, i.e. when/where
the trucks were loaded. One reason was that same gas was often sold
by another company also on the same pipeline; and the additives were
part of the 'brand differentiation' the marketing driods love...




--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

writes:




So what your saying is that if you have ethanol rich gasoline, just add
water and shake and what your left with is gasoline without ethanol.

Sounds like a good way to purify gasoline.


Does anyone else recall reading Ice Station Zebra, and how to get
the sugar out of gasoline...? [No, watching Ernest Borgnine in the
movie version won't cut it...]

--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

In rec.aviation.owning David Lesher wrote:
writes:




So what your saying is that if you have ethanol rich gasoline, just add
water and shake and what your left with is gasoline without ethanol.

Sounds like a good way to purify gasoline.


Does anyone else recall reading Ice Station Zebra, and how to get
the sugar out of gasoline...? [No, watching Ernest Borgnine in the
movie version won't cut it...]

--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Urban legend; sugar doesn't dissolve in gasoline.

http://www.snopes.com/autos/grace/sugar.asp

--
Jim Pennino

Remove .spam.sux to reply.

David Lesher wrote:

Does anyone else recall reading Ice Station Zebra, and how to get
the sugar out of gasoline...? [No, watching Ernest Borgnine in the
movie version won't cut it...]

Yep -- loved MacLean's books.

George Patterson
Why do men's hearts beat faster, knees get weak, throats become dry,
and they think irrationally when a woman wears leather clothing?
Because she smells like a new truck.

On Thu, 2 Jun 2005 02:51:51 +0000 (UTC), David Lesher wrote:

Does anyone else recall reading Ice Station Zebra, and how to get
the sugar out of gasoline...? [No, watching Ernest Borgnine in the
movie version won't cut it...]

No, that's "Night without End," not "Ice Station Zebra."

Ron "A gallery for minstrels" Wanttaja

"DL" == David Lesher writes:
DL A host is a host from coast to
DL & no one will talk to a host that's close........[v].(301) 56-LINUX
DL Unless the host (that isn't close).........................pob 1433
DL is busy, hung or dead....................................20915-1433

Gee, this was funny years ago with the old style addresses, but now???

David Lesher wrote in news:d7lrj4$ba2$1
@reader1.panix.com:

"Sport Pilot" writes:

One thing about mogas, it is best to get the mogas that airports have
.They typically get car gas that does not have the car gas additives.

Total BS, most FBO's that sell mo gas are either small mom and pop
operations that do not have a very large tank to ask the local
distributer to eliminate the aditive package, or they only offer it
because they are also using it for their ground equipment. Besides the
additives are only detergents which would only help to get rid of
carbon and lead deposits. The alcohol is added at the refienery not
the distributer.


I wonder about that... I worked in the fuel business eons ago. The
additives WERE injected at the marketing terminal, i.e. when/where
the trucks were loaded. One reason was that same gas was often sold
by another company also on the same pipeline; and the additives were
part of the 'brand differentiation' the marketing driods love...

This FAQ is geared towards automotive gasoline but it was quite
an eye opener when I got done reading it.

http://extract.cr.usgs.gov/Extractor...t/40063288.zip

It explains many of the reasons why gas prices vary from place
to place in seeming illogical fashion. Once you know the reasons
why, it's not so confusing. Although that doesn't help the fact
that some are still having to give their first born to gas up.

Brian
--
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