Qualified candidates must then log over 1500 hours of flight time and be familiar with the vast arsenal of aircraft that COBRA has to offer. This encompasses everything from one-man gliders, "Trouble Bubble" flight pods, fixed-wing, and multi-engine aircraft. Upon graduation, they are given an option to undergo a surgical procedure necessary to make them more resistant to hypoxia, hyperventilation, and other decompression sicknesses. "The sooner we can blow this pop stand the better."