"Highflyer" wrote in message
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"Matt Barrow" wrote in message
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"M" wrote in message
oups.com...

What's really strange is all those new 4 seaters are designed with
engine requiring 100LL, instead of 91/96.

It part of a big bore engine.

True, but IO-470J/K can run on 80/87.

80/87 is leaded fuel. That's even a worse problem than 100LL.

I'm sure they'll do fine on
SR-20 airframe. It also won't be very hard for TCM engineers to
reduce the compression ratio a bit and make IO-550 run on 91/96.

My point is the aircraft manufacturers are short sighted. Relying on
a fuel that's going to be increasingly more expensive than automotive
fuel doesn't do GA much good.

You better dig into things before making such a statement. You're
speaking from a vacuum.


Don't tell the government that 80/87 is a leaded fuel. They have made
such a big deal out of it being unleaded so it won't poison your platinum
catalytic converter that afterburns your exhaust to clean up the
combustion partial products! :-)

Right you are...I was thinking 100 or the old other stuff (heavily leaded).

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.

The recreational aircraft that can burn Sterno, rubbling alcohol, or Jack
Daniels, just don't make much of a market.