Date: 09 Mar 97 22:55:40 From: Andrew Goldfinger <Andy.Goldfinger@jhuapl.edu> Organization: apl Followups: 1 2 3 4 5 6 7
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I recently flew at 41,000 feet in a commercial airliner (actually FL 410, I assume). According to a friend, at around 42,000 feet free flowing oxygen is no longer adequate for maintenance of life, and pressure breathing is required. Therefore, the emergency oxygen system (as an SWA flight attendent put it: "these are not party hats") on commercial aircraft would not be sufficient. Does this limit the practical ceiling of commercial flights? What is done for emergency oxygen on the Concord?