Montblack wrote:




What is the time limit - 3 minutes? Tell me it's not 4 minutes.

What are planes/jets doing (ft/min) in emergency descents - and how low
must they go to get to "breathable air?" What's the reg for breathable
air out of an emergency descent - 18,000 ft?


Montblack

I believe the reg states "4 minutes to get to 14000 ft."

Happy Flying!
Scott Skylane