Maybe the Air Force released this video to show what the hell goes on in the Centrifuge contraption. Make sure to pay attention to the top left, where it shows the G's. Some people can really handle them, and others, well, they need a doggy bag. The one guy starts passing out at like 1.8 g's. I'm sure it's tough, but dude, butch up a bit. PS, squeeze those buns!