14 years ago
Anonymous

Why must piolets wear oxygen masks when they fly at very high altitudes?

i need a response for my science homework? hehehe thanks hint: and its not because when the more high u go the less oxygen there is...THATS WHAT I WRTOE DOWN AND ITS WRONG..LOL
Top 5 Answers
14 years ago
Anonymous
Favorite Answer
In the troposphere, pressure decreases with height. The concentration of oxygen in the mixture of atmospheric gases is proportional to the atmospheric pressure. Meaning, if the pressure decreases, so does the concentration of oxygen. Maybe your teacher was looking for Hypoxia as the answer? When your brain becomes oxygen starved after about 10,000 feet, because of the decrease in oxygen concentration. I don't know why you got that wrong, I would have put something similar to your answer.
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5 years ago
Anonymous
Keeping oxygen available is a useful safety precaution for extreme situations, such as military pilots might encounter. As a rule, jet pilots in pressurized aircraft don't have to wear masks, but there are exceptions (for example, above a certain altitude, one pilot must put on an oxygen mask if the other leaves the flight deck for any reason, in some cases). Pilots of small single-engine unpressurized airplanes can profit from oxygen, too, if they are flying above 5000 feet or so, but many don't bother unless they are high enough to be legally required to use oxygen. Above 5000, night vision starts to deteriorate if you don't have an oxygen supply, although there usually aren't any other symptoms until you go a lot higher. The problem is worse for smokers. Above 12,000 feet or so, pilots are required to use oxygen in an unpressurized airplane. Not far above that, everyone is required to use oxygen.
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14 years ago
Jolly
If you're speaking of military aircraft, many are pressurized, in which case an oxygen mask isn't necessary. However, if the cockpit is unpressurized, above 10,000 feet the air becomes too thin to maintain a conscious state. So, the mask provides that breathable air.
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14 years ago
Anonymous
The cockpit is pressurized, just like on commercial airliners. But with a fighter jet It is more likely to take on enemy fire and the glass or any part of the cockpit could be cracked thus losing pressure. The mask is in case you do go into combat and you lose cabin pressure you can still maneuver yourself to fight or escape to safety.
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14 years ago
yngrayn
Ahhhh... I'm a rocket scientist (really), and an engineer at Kennedy Space Center, FL...... that's what I would have written. There is approximatley 20% less atmosphere at 14,000 feet, and I've suffered tremendously from altitude sickness.... due to lack of oxyen at altitude.
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