Questions tagged [hypoxia]

Oxygen deprivation as a result of the low air-pressure at high altitude.

Filter by
Sorted by
Tagged with
10
votes
3answers
433 views

How is one's hypoxia resistance affected by the time of day?

I am doing my PPL course in the Czech Republic and here they have the following question in tests: when during a day is the resistance of a human organism to hypoxia the best? There are 3 possible ...
2
votes
1answer
792 views

Why do we need to fly at lower altitudes at night to prevent hypoxia? [duplicate]

FAA recommends general aviation aircraft to stay below 5,000 ft at night time. I thought the reason is that oxygen usage with our eye's rods since the rods uses much oxygen and rods can get hypoxia ...
6
votes
2answers
1k views

Have any commercial airline passengers ever been injured from hypoxia due to a depressurization event?

This question is inspired by the question "What can I do to save my life if oxygen masks fail to drop down? Is it possible?" One of my first thoughts upon seeing that question was: do you need to do ...
2
votes
1answer
778 views

Is there possibility to Survive without brain damage at 30/35,000 feet?

I just read Mayday by Nelson Demille. I won't get into many details but the book talks about an airliner (similar to the Concorde) which operates at an altitude of ~60,000 ft (~18Km). Suddenly, due to ...
8
votes
2answers
345 views

Does hypoxia affect pilots differently from people on the ground?

In my experience, many people don't have serious problems camping, skiing, hiking or doing other physical activities at 12,000 feet (3,600m). We may get tired easily, and be out of breath, but we ...
68
votes
6answers
11k views

How do people suffering from hypoxia not realize they aren't getting enough oxygen?

I've seen reports of flight passengers/crew suffering hypoxia, and many times without knowing it. My question is, how could you not be aware of it? For example, at above 10000ft, if your body is ...
34
votes
2answers
4k views

Why are listed times of useful consciousness so low?

I've been reading about Time of Useful Consciousness (TUC), and it says that at FL 180, the time of useful consciousness is 20 to 30 minutes at rest. But I've been to a trip to Tibet, and we went on ...
23
votes
4answers
6k views

How should I deal with a passenger experiencing hypoxia over the Grand Canyon?

I am taking my mom for a trip over the grand canyon. My mom lives at sea level, whereas I live at 5000ft, and workout at 8000ft daily. The VFR lowest route over the Grand Canyon is 11,500ft MSL. If I ...
10
votes
3answers
1k views

What can pilots do to spot the onset of hypoxia?

If there is a loss of/lack of air pressure at high altitude, without an explosive decompression (for instance as on Helios 522 or N47BA) are there any signs that pilots can look out for that they ...
25
votes
5answers
20k views

Could a pilot incapacitate other crew/passengers by manipulating cabin air quality/pressure?

Could a pilot of an airliner incapacitate everyone outside the cockpit by somehow triggering a loss of cabin pressure while simultaneously disarming the airplane's oxygen masks, manipulating the air ...
36
votes
4answers
9k views

Would failure to put on an oxygen mask during loss of cabin pressure result in death?

I was trying to explain to someone why the cabin is pressurized (no one wants hypoxia) and that led to discussion about the emergency oxygen masks available on airliners. If a person didn't put on ...