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Aug. 11th, 2007 @ 09:27 pm For aspiring pilots/aircrew/fam flight (...ers?)
So this is a video of controlled hypoxia in the altitude chamber at Holloman from youtube. For aspiring pilots/aircrew/flying status people out there, you'll get to experience this pretty early in your career (since you have to do this to fly above 18kft).
For background, if you're unfamiliar, hypoxia is when you don't get enough oxygen in your system so you start shutting down. It happens in low pressure (high altitude) conditions and is associated with feelings of euphoria, drunkenness, numbness, air hunger, nausea, confusion, slow reactions, etc.
For the chamber, you're subject to 25kft pressure without your mask and given easy math/logic questions to answer. You'll hear the aircrew in the video tell the subject to gangload the regulators (switches up for max O2 output) + put his mask back on when his symptoms start getting bad.

If you're a cadet and there's an altitude chamber around that you can get to, I definitely recommend doing it because then you can hitch fam rides at local bases (esp around training bases) a lot more easily + it's just a crazy experience.

Enjoy: http://www.youtube.com/watch?v=qLQMupV3DLk
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Date:August 12th, 2007 06:50 pm (UTC)
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HA so about that hypoxia. Did the climb today and got my ass completely handed to me by the altitude. I finally broke down and begged for a break when I started seeing stars and my vision went all tunnel on me.

The air itself didn't quite do it to me, but the 4 mile trek uphill in knee deep snow + the air did me in.

That said, I made it. Although my hypoxia wasn't nearly as fun as yours (gasping for air and being generally convinced that I wasn't going to make it)

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Date:August 12th, 2007 10:46 pm (UTC)
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I was so jacked up. Apparently when they told me to gangload my oxygen unit and put on my mask I made a feeble attempt, couldn't flip the switches, and decided to go back to my worksheet.

Man... that must have been awesome though. I'm jealous. But hopefully I'll make it out to Europe next year and get to experience some great adventures like that. Where did you go ice-climbing at?