Hypobaric chamber aka. Altitude Chamber

This week Abigail and I had fun watching Trevor do altitude chamber training.
Vance Air Force Base, Vance AFB, Altitude Chamber


 The altitude chamber helps pilots learn about their symptoms are when they have an inadequate oxygen supply or hypoxia. The chamber helps the pilots recognize these symptoms, which are different for each person, so that while they are in flight they can avoid in-flight emergency of not having enough oxygen. 

Vance Air Force Base, Vance AFB, Altitude Chamber


First they do an ear and sinus check by bringing by ascending them to an altitude of 10,000 ft or so. (I don't know the exact altitude.) If everything checks out and they don't have any problems, they continue the training. 
Vance Air Force Base, Vance AFB, Altitude Chamber


Following the ear check, they have them breath 100% oxygen from their masks to reduce the nitrogen in the bloodstream to 30% or less that way they do no get Decompression Sickness. Decompression Sickness or DCS is where a nitrogen comes out of the bloodstream and negativity affects your body. 
Vance Air Force Base, Vance AFB, Altitude Chamber

Vance Air Force Base, Vance AFB, Altitude Chamber

Vance Air Force Base, Vance AFB, Altitude Chamber

Vance Air Force Base, Vance AFB, Altitude Chamber


While they were breathing 100% oxygen the flight operator asked them questions to pass the time. He totally sounded like he should be a radio broadcaster for love songs after dark.

Vance Air Force Base, Vance AFB, Altitude Chamber
 After the 30 minutes of nitrogen purging they begin the hypoxia training by bringing the an altitude of 25,000 ft. Each side was asked to remove their masks and fill out a simple questionnaire.
Vance Air Force Base, Vance AFB, Altitude Chamber
 One by one they noticed their hypoxia symptoms they flipped the emergency oxygen switch to on and put their masks on. Oxygen is forced into your system. Its kind of like sticking a leaf blower to your face.
Vance Air Force Base, Vance AFB, Altitude Chamber


Vance Air Force Base, Vance AFB, Altitude Chamber

Vance Air Force Base, Vance AFB, Altitude Chamber

After each side has realized their hypoxia symptoms they then cover the windows to simulate low light or night flying and then again remove their masks and look at color wheels and contrast sheets to experience what hypoxia is like at night.  

Once they have gotten oxygen back in their system they go on to do a rapid decompression where the chamber goes from 500 ft to 11,000ft  in the matter seconds to simulate loss of cabin pressure. 

Once that is compete they go to their debriefing where they cover DCS symptoms and do and don'ts for the rest of the day. 

Vance Air Force Base, Vance AFB, Altitude Chamber

Here are some other photos from the Chamber 
  
Vance Air Force Base, Vance AFB, Altitude Chamber

Vance Air Force Base, Vance AFB, Altitude Chamber

  
Vance Air Force Base, Vance AFB, Altitude Chamber

Vance Air Force Base, Vance AFB, Altitude Chamber

I hope you enjoyed this post! 
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