Turbinator_PT6A
27th May 2012, 16:43
Hello Folks! I had a query regarding the altitude limitation on sustained use of Oxygen masks by crew/pax:
A/C service ceiling : 45000
Crew Mask Limitation for sustained Use : 40000
Pax Mask limitation for sustained use: 25000
Looking for an answer as why is there an altitude limiting factor, so long as there is enough supply form the oxygen cylinders on board.
Thanks.
A/C service ceiling : 45000
Crew Mask Limitation for sustained Use : 40000
Pax Mask limitation for sustained use: 25000
Looking for an answer as why is there an altitude limiting factor, so long as there is enough supply form the oxygen cylinders on board.
Thanks.