3 ms·
It's a myth that the pilot can "turn up" the amount of oxygen. But the ratio of fresh air that the airline has selected depends on how much fuel that they want
by excuse-me 14y ago
It's a myth that the pilot can "turn up" the amount of oxygen.
But the ratio of fresh air that the airline has selected depends on how much fuel that they want to waste heating the -50C fresh air to cabin temperature, and how much humidity they want to put on the airframes life.