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Transportation

Submission + - ASV hulls would put ships on a cushion of air to improve efficiency (gizmag.com)

cylonlover writes: A European project is developing new Air Support Vessel (ASV) hull designs that allow watercraft to ride on a cushion of air to greatly reduce friction between the hull and the water, resulting in more hull speed for less power than conventional designs. Sort of a wedding of the hovercraft and the planing hull, the approach greatly reduces the wetted area of the hull and reduces hull friction by about 50 percent with increased efficiency of 40 percent once the energy cost of running the air compression system are deducted. It also produces very little wake, so it is ideal for sheltered waterways, such as harbors and canals.
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ASV hulls would put ships on a cushion of air to improve efficiency

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