George Moore wrote:

Archie,
    I don't know what kind of vehicle you were driving that day, but
most racing machines have very loose and open cockpits and in the case
of fire you wouldn't be confined in that enclosure very long, so no
problem !
    In the case of an airplane cockpit, setting off a Halon system at
altitude could be worse than the fire, unless you are flying on oxygen
via mask.
It has always been my understanding, that Halon effectively kills the
oxygen, which starves the fire !  So, by the time the fire is dead, so
are you !
    Please correct me if I'm wrong, but for years I designed computer
rooms with halon systems, and somewhere around 1988 we were ordered by
the government to stop using Halon in any confined space with Human
Beings, because of it's deadly effects.

George 


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