Cost of gas is beginning to hurt

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. 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.

On 19 Apr 2007 17:38:00 -0700, M wrote:

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.

Have you tried getting mogas lately? Even auto gas is becoming
unusable because of all of the alcohol. I suspect for aviation diesel
will be the solution for a while.

"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.

Matt Barrow wrote:
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.

It has nothing to do with the bore, and everything to do with the
compression ratio.

John Galban=====N4BQ (PA28-180)

--
Message posted via AviationKB.com
http://www.aviationkb.com/Uwe/Forums...ation/200704/1

"flynrider via AviationKB.com" u32749@uwe wrote in message
news:70fea2213e94e@uwe...
Matt Barrow wrote:
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.

It has nothing to do with the bore, and everything to do with the
compression ratio.

Yes! My bad!

And what is the threshold for compression ratio?

Why does my current 7.5:1 CR still need 100LL when my older 8.5:1 did as
well?

"C J Campbell" wrote in message
news:2007041808545031729-christophercampbell@hotmailcom...
It cost me more than $40 at Costco yesterday to fill my gas tank. I figure
it costs me at least $10 in gas every time I drive to the airport -- and I
have a hybrid car. I am beginning to wonder how long some of the younger
instructors can keep this up.


Just as the Evil Bush was dictating the cost of gas before the election, he
and Halliburton are jacking the price now that the election is over and
done. It's their retribution for losing the elections, you know.

On 2007-04-18 10:27:45 -0700, "Matt Barrow"
said:


"C J Campbell" wrote in message
news:2007041808545031729-christophercampbell@hotmailcom...
It cost me more than $40 at Costco yesterday to fill my gas tank. I figure
it costs me at least $10 in gas every time I drive to the airport -- and I
have a hybrid car. I am beginning to wonder how long some of the younger
instructors can keep this up.


Just as the Evil Bush was dictating the cost of gas before the election, he
and Halliburton are jacking the price now that the election is over and
done. It's their retribution for losing the elections, you know.

Oooookayyyy. Didn't know the President (or Halliburton) was able to do
that. I thought Nancy Pelosi was running things now (she said so on
CNN, so it must be true). We have another gas tax hike coming in July
here in Washington, but that was decided by a Democratic controlled
legislation in Olympia.
--
Waddling Eagle
World Famous Flight Instructor

"C J Campbell" wrote in message
news:2007041813552895335-christophercampbell@hotmailcom...
On 2007-04-18 10:27:45 -0700, "Matt Barrow"
said:


Just as the Evil Bush was dictating the cost of gas before the election,
he
and Halliburton are jacking the price now that the election is over and
done. It's their retribution for losing the elections, you know.

Oooookayyyy. Didn't know the President (or Halliburton) was able to do
that. I thought Nancy Pelosi was running things now (she said so on CNN,
so it must be true).

Recall that prior to the last election, the Dem's were claiming that Bush
was manipulating the price of oil from the White House to better the R's
chances in the elections. Investors Business Daily had a cartoon about it
that was hilarious (Bush as "math challenged").

C J Campbell wrote:

(snip)


We have another gas tax hike coming in July here in
Washington, but that was decided by a Democratic controlled legislation
in Olympia.

Actually...the autofuel tax increase in Washington that kicks in July 1
was passed by the Republican-controlled legislature in 2005.

Al
1964 Skyhawk
KSFF
Spokane, WA

On 2007-04-20 18:26:28 -0700, Al said:

C J Campbell wrote:

(snip)


We have another gas tax hike coming in July here in
Washington, but that was decided by a Democratic controlled legislation
in Olympia.

Actually...the autofuel tax increase in Washington that kicks in July 1
was passed by the Republican-controlled legislature in 2005.

Al
1964 Skyhawk
KSFF
Spokane, WA

Really? I was out of state in 2005, but I was under the impression that
Democrats have had a nearly 2/3 majority in both houses for several
years now. In fact, I recently got a call from a Republican fund-raiser
demonizing the Dems for the gas tax. If Republicans controlled the
legislature in 2005, how come Republican Mike Hewitt was the minority
leader?
--
Waddling Eagle
World Famous Flight Instructor