Originally Posted by
JDiver
Equivalent available oxygen at 30,000 msl is 6.3%, as opposed to 20.9% at sea level. Anything under 19% isn’t good for human survival. Pretty amazing - and pretty desperate.
How do you know?? If he survive. He can barely breathing. He could fall in the sea. He won’t be alive. He could die. There is no oxygen in the landing gear wheel. That’s for sure! He could freeze to death. There is no life.