"Morgans" wrote in message
...

"LCT Paintball" wrote in message
news:F7QQd.5629$4D6.3605@attbi_s51...
True, but that issue can be fixed.

That comment was about fuel jelling. What are your fixes? Will it
end
up
making the cost higher? What happens when you go to other airports
that
don't have auto diesel fuel?


The first fix would be to pump extra fuel through the system so that it
can
be warmed by the engine, then returned to the tank. Perhaps you could
even
run it through the oil cooler before sending it to the engine. There are
also additives that are routinely used to keep the fuel from jelling.

The additives will be the best bet, but expensive, when you add that to
the
price for fuel. Truckers use it, but they are only dealing with negative
in
the teens, not 20 to 30 below, with a huge moving air factor, around the
fuel. All that fuel, basicly in direct contact with the air, with Al's
great thermal conductivity. You would need to insulate the tank. Not
easy,
and more weight. Now add in whatever fuel heat exchangers, lines, and
pumps, and more weight, and also, complexity. (read ways to bring you down
before you wanted to) I didn't do any calcs, but you would need to
capture
almost all of the engine's waste heat to do this without additives.

I realize that you would not be in that kind of temperatures all of the
time, but all you need is one time where things were colder than you
thought, and......

Many around here will talk about the hassles of using your own auto fuel,
and what happens when you travel away from home. That is what the
airplane
you are describing will be good at; great economy, and legs.

Shoot, one nutcase that hangs out around here even made his own fuel truck
to feed his habit. g

The old saying about asking how much fuel that yacht burns? If you have
to
ask how much fuel it burns, you can't afford the boat.

Same thing here. Jet fuel is not that bad, it will give you great
economy,
and it is available, and won't end up killing you. Just my humble
opinions.
--
Jim in NC



You could use the fuel as an engine coolant in a liquid cooled diesel like
the Deltahawk.

With a wet wing, you'd get hot wing anti-ice capability and a skin radiator
in the bargain.

'Course, it wouldn't work if you ran out of fuel.....

Bill Daniels