OBOGS (On Board Oxygen Generation Systems) technology allows an aircraft to generate its own oxygen from a conditioned air supply during flight, giving significant advantages in reliability, safety and performance over older gaseous and liquid oxygen systems.
And what do they use for the "plan B" redundant/back-up system for the pilot?
18 posted on 03/31/2012 3:50:56 PM PDT by ROCKLOBSTER
( Celebrate Republicans Freed the Slaves Month.)