Anyone who has seen a movie about fighter pilots or has watched documentaries about fighter pilot operations has noticed that pilots will wear helmets with built-in oxygen masks throughout the duration of their missions. Instinctively, one may think that this is the result of fighter jets being unpressurized, and thus, the masks serve as the only source of oxygen for the pilots.
from Simple Flying https://ift.tt/zyjmuSf
via IFTTT
Comments
Post a Comment