High Altitude Operations

Question 1

During operations at night, at what altitude is it recommended you use supplemental oxygen and why

Answer 1

Above 6000’ MSL, vision is particularly sensitive to diminished oxygen

Question 2

Which regulation contains supplemental oxygen requirements

Answer 2

FAR 91.211

Question 3

What are the supplemental oxygen requirements for an unpressurized aircraft

Answer 3

Above 12500’ MSL < 30 min cumulative the minimum required flight crew must utilize supplemental oxygen
Above 14000’ MSL the minimum flight crew must utilize supplemental oxygen at all times
Above 15000’ MSL the minimum crew must utilize and every occupant must be provided with supplemental oxygen