wrote on 12/11/2020 2:36 AM:
Le vendredi 11 décembre 2020 à 01:23:10 UTC+1, Waveguru a écrit*:
Many pilots all over the world underestimate the effects of hypoxia and think that they are the exception to the rules.... omissis...
You really have no idea how effected you are. That is one of the reasons it is so dangerous.
Boggs

I'm really amazed that some pilots still question the consequences of hypoxia, even, and above all, the mild one. Everything has been studied and described, in particular in chapter 12 of the book “Dancing With the Wind” (on sale in the USA at Cumulus Soaring and Wings & Wheels), subject of a conference at the SSA Convention in Reno in 2018 (downloadable 1) then in an article published in Soaring USA in August 2018 written by the famous Dr. Daniel Johnson in collaboration with Patrick McLaughlin (Mountain High), Dr. Heini Schaffner and myself (downloadable here). And other dangers much more devious and undetectable in the short term seem to be confirmed, according to Dr. Linda Ravetti (USA): prolonged mild hypoxia, that which pilots undergo while spending hours around 10,000 - 13,000 ft without oxygen, would be an aggravating factor in the appearance of Alzheimer's disease. But that, you will not know until 20 years later!
Now, you can't say you didn't know that.
Take care!
1= http://topfly.free.fr/2018_OXY SSA_OSTIV.pdf
2= https://topfly-aero.com/wp-content/u...icle-proof.pdf

For me, the advent of low cost oximeters was the wake-up call. Before then, I followed the FAA
requirements, typically turning on the oxygen at 12,000'; after I got one (20 years ago?), I
realized I need to turn the oxygen on at 10,000'. A few years ago, I noticed Cheynes-Stokes
breathing beginning above 8000', so 8000' is now when I turn it on.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1