Hello, Jim !
-=> 05-Feb-98 20:34:00, you to us All
 JS> learn exactly how it affects them. And the only way to do
 JS> that is to go up to 25,000 feet or so and take your oxygen
 JS> mask off.
That Harrier pilot you reported on recently - his canopy blew out
at 40,000 feet.
Then there are the climbers of Mount Everest (29,000 feet), who do
it without oxygen.  Of course, they do spend a month or so at high
altitude to aclimatise...
 > Robin
--- Terminate 5.00/Pro http://www.trak-one.co.uk/foti
---------------