Avgas Where is the ceiling?

Bob Noel wrote:
In article , wrote:

Anything that burns using the oxygen from air produces oxides of nitrogen,
i.e. smog.

Burning Hydrogen would produce smog?

--
Bob Noel
Looking for a sig the
lawyers will hate

Yes, unless you can come up with a way to keep the nitrogen in the air
out of the combustion process.

Fuel cells, which run at temperatures below which the nitrogen oxides
form don't have this problem, but any conventional engine, no matter
what the fuel, does.

--
Jim Pennino

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