Chuck Aaron makes helicopters fly upside down thanks to some heavy modifications to his lightweight chopper. And does barrel rolls too. And all sorts of crazy ass maneuvers that are a pleasure to watch but make my stomach turn.
Aaron wanted to try aerobatic maneuvers in a helicopter bad enough that he got funding from Red Bull to build a highly customized, ultra lightweight chopper that can handle tricks you're used to seeing fighter jets do. Of course, the helicopter is now a flying Red Bull ad, but it's a flying Red Bull ad that can do the impossible.
The sponsorship also gave Aaron, a self-identified daredevil, the opportunity to become the world's first pilot licensed to perform aerobatic maneuvers in a helicopter. Based on how harrowing those tricks look, he's probably be the only one for a while. Evel Kneivel would be proud.