Today's Message Index:
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1. 01:49 PM - Re: Mogas in a Glasair II (jonlaury)
2. 01:52 PM - Re: Mogas in a Glasair II (jonlaury)
3. 06:25 PM - Re: Re: Mogas in a Glasair II (Craymondw@aol.com)
Message 1
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| Subject: | Re: Mogas in a Glasair II |
[quote="gossend(at)gmail.com"]..and, at least under FAA regulations, no STC is
required for experimental aircraft.
On Nov 20, 2012, at 4:50 PM, Steve Thomas wrote:
>
>
> Yes, Gerd, absolutely no ethanol! I ran some test samples in 10% ethanol laced
mogas and saw a sticky film develop over the surface that is sure to clog-up
your entire system.
>
>
> Steve Thomas
> _______________________________________________________________________
> Hey Steve,
>
> When I started my IIS kit in 1990, I thought that I would run it on mogas, so
I went out and got samples of 92 octane fuel from Chevron, Shell, Mobil, 76,
etc. Can't remember them all but there were 7 jars. I took a sample piece of cured
glass from the seat pan cut-outs in the top skin and cut strips. Put one
in each jar. When I moved in 1996, I opened the jars and compared the submerged
glass samples with the non immersed control strip from the seat pan cut-outs.
>
> Results were no detectable difference between control and all samples. Glass
was hard with no evidence of any gumminess or any other degradation. Flexing the
strips showed no obvious difference from the control.
>
> I confess that I don't know if there was ethanol in 92 oct pump gas in California
then or if Glasair changed resin systems between then and now that may have
had an effect on your testing. But if someone wanted, it couldn't be too hard
to run down the history of both questions.
>
> John
>
>
>
>
> On Nov 20, 2012, at 11:40 AM, Bruce wrote:
>
> >
> >
> > As long as there is no ethanol in the gas you'll be OK.
> >
> > Bruce
> > WWW.Glasair.org
> >
> > --
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390300#390300
Message 2
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| Subject: | Re: Mogas in a Glasair II |
That last post got screwed up. Try this
"Yes, Gerd, absolutely no ethanol! I ran some test samples in 10% ethanol laced
mogas and saw a sticky film develop over the surface that is sure to clog-up
your entire system.
Steve Thomas"
Hey Steve,
When I started my IIS kit in 1990, I thought that I would run it on mogas, so I
went out and got samples of 92 octane fuel from Chevron, Shell, Mobil, 76, etc.
Can't remember them all but there were 7 jars. I took a sample piece of cured
glass from the seat pan cut-outs in the top skin and cut strips. Put one in
each jar. When I moved in 1996, I opened the jars and compared the submerged
glass samples with the non immersed control strip from the seat pan cut-outs.
Results were no detectable difference between control and all samples. Glass was
hard with no evidence of any gumminess or any other degradation. Flexing the
strips showed no obvious difference from the control.
I confess that I don't know if there was ethanol in 92 oct pump gas in California
then or if Glasair changed resin systems between then and now that may have
had an effect on your testing. But if someone wanted, it couldn't be too hard
to run down the history of both questions.
John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390301#390301
Message 3
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| Subject: | Re: Mogas in a Glasair II |
John,
Did you have C.G. problems with your 2S. I put a 200HP engine,
constant speed prop, and loaded panel in mine. I moved the battery from behind
the rear bulk head to behind the seat before the c.g. was where it should be.
I painted the plane with a heavy laquer primer and equally heavy Centuri .
In 1996 I brought the skins down to the jell coat and repainted with a
light epoxy primer and Pittsburg three part system and lost around forty
pounds in weight that also moved the c.g. forward. Chuck Raymond
In a message dated 12/11/2012 4:49:50 P.M. Eastern Standard Time,
jonlaury@impulse.net writes:
--> Glasair-List message posted by: "jonlaury" <jonlaury@impulse.net>
[quote="gossend(at)gmail.com"]..and, at least under FAA regulations, no
STC is required for experimental aircraft.
On Nov 20, 2012, at 4:50 PM, Steve Thomas wrote:
>
>
> Yes, Gerd, absolutely no ethanol! I ran some test samples in 10%
ethanol laced mogas and saw a sticky film develop over the surface that is sure
to clog-up your entire system.
>
>
> Steve Thomas
> _______________________________________________________________________
> Hey Steve,
>
> When I started my IIS kit in 1990, I thought that I would run it on
mogas, so I went out and got samples of 92 octane fuel from Chevron, Shell,
Mobil, 76, etc. Can't remember them all but there were 7 jars. I took a sample
piece of cured glass from the seat pan cut-outs in the top skin and cut
strips. Put one in each jar. When I moved in 1996, I opened the jars and
compared the submerged glass samples with the non immersed control strip from
the seat pan cut-outs.
>
> Results were no detectable difference between control and all samples.
Glass was hard with no evidence of any gumminess or any other degradation.
Flexing the strips showed no obvious difference from the control.
>
> I confess that I don't know if there was ethanol in 92 oct pump gas in
California then or if Glasair changed resin systems between then and now
that may have had an effect on your testing. But if someone wanted, it
couldn't be too hard to run down the history of both questions.
>
> John
>
>
>
>
> On Nov 20, 2012, at 11:40 AM, Bruce wrote:
>
> >
> >
> > As long as there is no ethanol in the gas you'll be OK.
> >
> > Bruce
> > WWW.Glasair.org
> >
> > --
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390300#390300
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