G-suit


A pilot's g-suit is a one-piece jumpsuit that protects him from losing consciousness as blood drains away from his head. A fighter pilot coming out of a dive can experience up to nine g's. The g-suit puts pressure on the pilot's abdomen and legs to keep blood from accumulating in those areas and starving his brain. It works; an unprotected person can lose consciousness at even two g's.

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The reverse affect, is more dangerous. Even three negative g's will drive blood to the retina and cause red out. If a pilot must go into a very steep dive at speed they roll the plane over first to avoid negative g's.