Definitions for "Life Support"
equipment that makes life possible in otherwise deadly environmental conditions; "the astronauts relied on their life-support systems"
medical equipment that assists or replaces important bodily functions and so enables a patient to live who otherwise might not survive; "the patient is on life support"
The men and women who maintain the Fighter Pilot's equipment such as Helmet, G-Suit, Pistol, and Survival Gear. Along with Intell, these people are a Fighter Pilot's best friends! But then, if the Maintenance people don't do their essential part, and get the plane off the ground, then the mission isn't accomplished.
Machines used to keep a person alive by maintaining circulation and breathing.