The Marion Hyper-Sub is a submersible vehicle which also has the ability to run on the surface at impressive speeds. It is able to dive to a depth of 250 ft (76m) and run on the surface at 40 knots." The world's first true general-purpose submarine. Operating as a self-sufficient powerboat on the surface, and as a robust submarine under the surface, the Hyper-Sub opens the door to undersea exploration in a way that has never been available before."
