Continue the technique until you return to a low pressure level. This step should take no more than one second - just enough time to let blood flow into your heart and chest, but not enough to allow the blood to leave your brain.īreathe in and repeat. Strongly exhale and finish the word “hook,” drawing out the “K” sound. About three-quarters of the way through the word, before hitting the “K” sound, close your glottis and hold for 2.5 to 3 seconds.Įxhale, finish the word “hook,” and inhale. Breathe in, and begin to say the word “Hook.” You should feel your glottis, the opening between your vocal cords, at the back of your throat. Tensing your muscles will help keep the blood pumping in your heart and brain. G-forces push down, pooling your blood in your abdomen and legs. G-force can make a pilot feel nauseous, experience blurred vision, or even pass out. Increasing acceleration increases G-force. Key facts Fighter pilots undergo training to allow them to cope with G-force. Pay attention to pressure levels when you feel the downward force of the g’s, get ready to start your AGSM. Find out how they train to avoid blacking-out during flights. The resulting report by the Naval Air Development Center explains that the Hook Maneuver “Simply emphasizes the proper mechanics for physiologic enhancement of tolerance” in a way that is “easily understood, rapidly mastered, and easily remembered.” You may never pull as many g’s as Crunchy has, but you may find yourself in a situation where you’ll need to fight against a G-force, or simply keep yourself from passing out after standing up too quickly, and this technique will help.Īnticipate the G. The Hook Maneuver was unclassified in 1990 in a response to civilians’ desire to know how these pilots keep their cool in the cockpit. Just before we flew in an L-39 jet with him, he taught us “the right way to do it,” which is an unclassified Anti-G Straining Maneuver (AGSM) called the Hook Maneuver.
He and other seasoned pilots, he says, “Tend to just hold our breath and squeeze our stomach, pushing the blood back into our head when we start to feel the effects of the g’s coming on.” But not everyone is so accustomed to g’s. For instance, retired Naval Officer Mark “Crunchy” Burgess, who’s been flying for over 26 years, is so accustomed to pulling g’s that he’s less concerned about fighting them than navigating dangerous situations like landing on an aircraft carrier in inclement weather, or flying through the clouds while being shot at.
If you’re a fighter pilot, encountering and fighting g’s is an occupational hazard, and fighting against them is second nature. Symptoms of encountering g’s include “graying out,” or passing out, due to blood flowing out of your brain and into your lower extremities. Most will encounter a g-force, if at all, on a rollercoaster.
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