Search Results

Gravity-induced loss of consciousness (G-LOC) is a major threat to high performance fighter pilots. A U.S. Air Force study showed that G-LOC-related accidents occurred 25.1 times per million flights during the period from 1982 to 2002 and that 3.6% of those accidents were fatal. 7 The rate of occurrence of G-LOC in aircrew in other countries has been reported to be 8.2–20.1%. 3 , 4 , 14 G-LOC is caused by exposure to high and sustained levels of head-to-foot G force (+G z ) that reduce cerebral blood flow, resulting in a reduction in oxygen supply to the

As modern fighter jets become more maneuverable, the inertial force, high load, and duration of high load caused by high-performance fighter jets place high demands on the G tolerance of the aviator. 10 Excellent cardiopulmonary reserve is essential for high-performance fighter aviators to maintain normal functioning of their vital organs under high load, hypoxia, and exposure to low temperatures. Aviators experienced G forces from three directions when maneuvering in the air. The force from the head to the feet can be quantified as the gravitational force