Some simple HPL Q's

[Cron]

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.

[silentwitness]

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

[tom775257]

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.

[Cron]

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