"John Haig" wrote in message
...
Yes. I was told they are not allowed as carry on and not allowed as
checked baggage. Ironic as all over water planes have a co2 cartridge
under every seat.


The airline at least has the option of inspecting their own CO2 cartridges
and assuring that they do not represent a hazard. That cylinder that you
might bring aboard will have been exposed to salt water, banged around and
could be who knows how old.

Rod