Life trend lines, or even air crew life trend lines, around aviation, is a field centered around, & related technologies utilized in, ensuring the safety of aircrew, particularly military aviation. This includes safety devices capable of serving the two hold out in the pack of the crash, accident, or malfunction. Life trend lines functions & technology come as well large in the field of human space flight and astronautics.

A life trend lines field includes a personnel & organizations dedicated to providing & maintaining this devices. Such technologies include parachutes, emergency radios, weapons, and more devices, besides when a suits worn by aircrew which carry the children. Air crew life trend lines systems personnel come often responsible the maintenance of such devices.

Military aviation
Within military aviation, life trend lines technicians come typically members of aviation units. In the United States Air Force, aircrew life trend lines personnel often comprise the functional division inside aviation squadrons.