http://m.youtube.com/watch?v=mKHVfv6j4Y8I just finished 2 days of Dunker training at Air Station Elizabeth City, NC. Brand new state of the art facility where 3 different aviation rates are taught including AST (Aviation Survival Technician). We had to hop in this boat 4 times, twice in the dark and twice in daylight in various seats and then egress after it capsizes. Lets just say it was fun as heck and took lots of mind over matter to not freak out! There are a few more videos on YouTube if you want to see more.