Title: How Pilots Survive Inhuman Levels of G Force
Headings: Here's How US Fighter Pilots Learn To Survive Under Inhuman Levels Of G-Force
Here's How US Fighter Pilots Learn To Survive Under Inhuman Levels Of G-Force
Pierre Bienaimé
A chart by a US Marine Corps Reserve plots the long, high-force circumstances that can lead to loss of consciousness.

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Becoming a military pilot is a formidable physical and psychological challenge. Those hoping to fly fighter jets must prove their ability to withstand a high level of G-forces, or the equivalent of the force of gravity multiplied. That's why fighter pilots-in-training have to spend some time in a centrifuge to prove they can handle the pressure. "Essentially, you are placed in a chamber that is on the end of a long arm that spins around the room — the faster it spins, the more G-forces you feel on your body," Jack Stewart, an active pilot with over 2,000 hours of experience in jet aircraft, wrote in an email to Business Insider. " Yes, it feels like weight is pushing down on every part of you." If you've ever been on a roller coaster, you know what a quick spike in G-force feels like. But the sensation of intense pressure is greater and longer in duration for someone strapped into the cockpit of a fighter jet, a vehicle which can "pull" up to nine times the force of gravity.