In the maritime mechanical world, supercavitation is the most heady method of acclaim. Supercavitation is an effect created when a bubbling layer forms around an object inside a liquid (try imagining the submerged part of the vessel being surrounded by bubbles). The gas layer reduces friction 900 times than normal, which means the vehicle travels much faster than moving in the water.
So any ship equipped with this technology is a great asset to every navy. In addition to its fast and low fuel consumption, its speed and shape make it easy to locate sound waves. It even torpedoed the smoke in the race. Juliet Marine Systems, a private company in Portsmouth, New Hampshire, is trying to make one. It's called MAIL, designed for defense - the protection of naval vessels, and the chase of pirates looking at commercial ships. It can also be an effective ferry in the landing of enemy troops.
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