Bullwinkle wrote:


Aviators, on the other hand, go quickly to altitude. Way too quickly to
reduce the amount of nitrogen in their tissues. Thus, they are
supersaturated with nitrogen and their respiratory systems are trying like
crazy to get rid of the excess. Sometimes it forms bubbles in the
bloodstream, which are cleared out by the lungs. Sometimes bubbles form in
joints causing the joint pain which originally gave DCS its nickname, the
bends. Sometimes bubbles form in the brain or nervous system, causing Type
2, neurological DCS. This can present as stroke-like symptoms.

Does breathing 100% O2 from chocks to chocks help lower the N2 in the
body? In other words, is there a secondary benefit to breathing 100% O2
other than that you don't pass out?

I used to teach Out of Control Flight (OCF) in the Navy, in which one
manuever required pulling the throttles to idle and coming to zero
airspeed vertically at 27+K feet. The cabin would decompress almost
every time (no bleed air) then rapidly recompress after recovery (at 13K
feet). Definitely a funky feeling.

A concerned aerospace medicine specialist/aerospace physiologist

A concerned end user.

Mike