16 Sep 97 06:49, Ray Harkness wrote to Jay Hanig:
 JH>> Whereas 1.5 psi of O2 may not be adequate for clear
 JH>> thinking, 7.5 psi is more than enough.  You need to use O2,
 JH>> not compressed air in a decompression incident.
 RH> Thanks Jay,  That makes sense.  Next question then,  would an O2
 RH> enriched compressed air be safer then pure O2 ?
Wouldn't that depend on your normal operating altitudes?  You could get away 
with that at altitudes in the mid teens perhaps.  See my immediately previous 
message for the math.
Jay
--- GoldED/386 2.50+
---------------