Ah, the days. My father once designe a conversion, recieved and STC, and
sold a conversion for these to use 100LL. It envolved a lot of engine work,
including chromed piston liners and other stuff I don't remember, and gave a
modest HO improvement.
Yes, it was legal to use automobile gas, called mo-gas, but that was when
there was leaded fuel,, so don't know what's up now. Tere were limitations
with purity and water content, so I believe you didn't want to go too high,
but not a problem in a 172.
The gas problem is throughout now, with the EPA about to stop sales of
100LL, that affect everyone from the old 172's to the afformentioned DC-3. I
don't think anyone has an answer. I just talked to a guy who is with the
largest ethanol trader about this, and he says it was considered, but thrown
out because of the problems of water content. Also, it won't solve the
burned valve issues in older engines.
Bill Pearce
----- Original Message -----
From: "Ken Norton" <ken@xxxxxxxxxxx>
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Sent: Thursday, July 15, 2010 11:55 AM
Subject: Re: [OM] IMG: From the Past
> Right you are Jim. I just returned from lunch and my flying partner pretty
> much said the same thing. There has been a move afoot for years to get the
> lead out of Avgas that has been strongly resisted by comercial aviation
> because there are so many piston planes that cannot use it or would be
> prohibitively expensive to convert.
Back when my dad had a Cessna 172, we used, 80/87 in it, I think. I
remember there was a conversion available to be able to run autogas in
it. We never got around to it because one of the partners managed to
shorten the plane by a few feet in a crash landing.
AG
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