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Message-ID: <3b.81aaaf9.26bb3c2b@ao*.co*>
Date: Thu, 3 Aug 2000 17:20:43 EDT
Subject: Re: DIR talk vs DIR diving
To: gzambeck1@me*.ne*
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Pilots getting bent is not new. In fact, it happens all of the time. In most 
cases the cargo plane pilots and crew will get it as they are not in 
pressurized cabins and when at 18,000-30,000 (they don't like going high but 
some times the weather makes them) feet you are going from a 1 atm saturation 
to say .25 atm or less. Fighter jocks don't get the bends as much being in 
pressurized cockpits unless they loose pressure. When this happens they tend 
to go from 1 atm to outside pressure in less then a second. If they do not 
get down quickly they can take bad type I&II hits.

On the Space Shuttle anyone going out in a space suit must "breath down" for 
3-4 hours on 100% O2 as the shuttle is pressurized to 1 atm of 20% O2 80% N2 
while the suits are at .25 100% O2 (any higher and you can't bend the arms).

So, divers are not the only ones to get bent and it may be that in the 
military, flyers get bent much more often than the divers do. This is not 
what you hear about when they tell you about Top Gun is it?

Pete Johnson


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