Mailing List Archive Mailing List Archive
John,
I worked in the Air Force High Altitude Life Support Systems area for
3 years back in the late 70's and prior to any High Flight the pilots
had to pre breathe oxygen for an hour prior to take off time. Also, I
took a chamber ride to one hundred and eight thousand feet and had to
pre-breathe O2 for an hour prior to the ride. I participated in many
chamber rides for pilot / and emergency training as well as some ultra
sound bubble studies done in 1979 ~ 1980 time frame. I dont understand
why a person would have to pre-breathe O2 for a ride to forty thousand
feet especially in a balloon which would take several hours to ascend
to that altitude.
I am not trained in hyperbaric medicine though I rubbed elbows with
those folks for quite awhile. My specialty was the O2 regulators and
full pressure suits.
Regards,
Mike O'Reilly
______________________________ Reply Separator _________________________________
Subject: Re: a case of decompression needed out o
Author: <JOHNCREA@de*.co*> at UNIXMAIL
Date: 3/20/95 12:30 PM
It is the routine practice in the Space Shuttle to pre-breathe
oxygen and exercise on a bicycle prior to excursions. Suit pressure
is about 5psi (approx. 1/3 atm), and DCS was a problem before they
began to de-nitrogenate before the excursions.
In fact, DCS is fairly common in altitude chamber training for pilots.
John
(johncrea@de*.co*)
--
Send mail for the `techdiver' mailing list to `techdiver@opal.com'.
Send subscription/archive requests to `techdiver-request@opal.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]