12-10-2006, 01:23 AM
I'm utterly amazed !! I was in the strong believe that the "safe altitude" was a set value IRL but astonishingly this seem NOT to be the case !
Whereas for example Douglas and Boeing planes are referring to altitudes above 14.000ft for requirement for oxigene, Airbus has a cabin
altitude after failure off pressurization of 15.000ft (FAR Certificate) and Saab speak about 12.000ft
Interesting numbers were on the Airbus pages referring to the maximum time w/o oxigene at altitude.
20,000ft All unacclimatized persons
lose useful consciousness
within 10 minutes
25,000ft Useful consciousness is lost
after 2.5 minutes or less
30,000ft TUC: approx. 30 seconds
37,000ft TUC: approx. 18 seconds
45,000ft TUC: approx.15 seconds
40.000 ft would thus give paxes about 16 seconds before they pass out....holy makerel not too much time !!!!!!!!!
Whereas for example Douglas and Boeing planes are referring to altitudes above 14.000ft for requirement for oxigene, Airbus has a cabin
altitude after failure off pressurization of 15.000ft (FAR Certificate) and Saab speak about 12.000ft
Interesting numbers were on the Airbus pages referring to the maximum time w/o oxigene at altitude.
20,000ft All unacclimatized persons
lose useful consciousness
within 10 minutes
25,000ft Useful consciousness is lost
after 2.5 minutes or less
30,000ft TUC: approx. 30 seconds
37,000ft TUC: approx. 18 seconds
45,000ft TUC: approx.15 seconds
40.000 ft would thus give paxes about 16 seconds before they pass out....holy makerel not too much time !!!!!!!!!
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