Some simple HPL Q's
 

Would be most grateful for help with the following Human Performance and Limitations Q's:

1. What is the most dangerous sympton of Hypoxia (a ranking would be even better)

2. Which frequency range causes the most distress? (again a scale would be nice)

3. The barometric presuure has dropped to half the pressure level at?

Thank you in advance for any responses.

1. Maybe the euphoric feeling it gives, as you don't realise you're suffering from Hypoxia when you are. :confused:

If memory serves:
1) The most dangerous aspect of Hypoxia can be that you don't notice it coming. Most dangerous symptom, can you nail it down....death? I guess bad decision making is a good one. Symptoms: Euphoria, lack of good judgement, lack of concentration, fatigue, blurred vision (lack of night vision a first symptom), tunnel vision, unconsciousness, death.

2) 1-100Hz

3)18,000 ft.

Thanks ver much both (got to make this long to get the post on)