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

Cozies and Long ez's aren't aluminum. I haven't studied what the wings look
like on the inside, but don't they already have foam in them? Do you still
think they would loose too much heat?


pumps, and more weight, and also, complexity. (read ways to bring you down
before you wanted to)

The fuel pumps are already there, and so are the fuel lines. The only thing
you would be adding is a device to transfer the heat from the engine oil, or
radiator to the fuel. I would think (read I'm not smart enough to do the
calculations) that the improved airodynamics of not having to have a
radiator in the wind would offset the extra weight of the heat exchanger.


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.

My understanding is that they run equally well off Jet-a. If there's not any
diesel around, just filler up with Jet-a.


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.

That is a good statement for me. Money is always an issue. I have been known
to spend $1,000 so I can save $100.



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.
--

I like that not killing me part. It's a rule that I try to live by.
I also like opinions. They make me think.....