G-LOC

Relationship between acceleration and time at maximum G required to produce symptoms of gray out and black out.

A g-induced (centrifugal acceleration) loss of consciousness. A condition that occurs when the g loading is above 5 or 6 continuously for more than 5 to 7 s. Unconsciousness follows because of the temporary stoppage of the blood supply to the brain. However, this phenomenon does not occur if the buildup of g is very rapid only momentarily, as during ejection. The chances of G-LOC can be minimized by use of anti-g suits, anti-g maneuvers, and a higher level of physical fitness. See also anti-g suits.

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References in periodicals archive ?

Not only are you placing yourself in a significant tactical disadvantage, but you are also taking safety risks that could cost you your life through a G-LOC.

In the "Hot" Seat

When he became sick, he literally gave himself G-LOC by cutting off the blood supply to his brain, which turned out his lights in a dramatic show.

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Their full-up anti-G straining maneuver review program was a critical contributor to ZERO Class E G-LOCs.