Underwater Express

摘要

Pentagon researchers envision a Sea, Air, Land (SEAL) team of the future on an urgent mission able to race to a hostile shore in a vessel capable of speeds of 100 knots underwater, without the risk of detection or the spine-jarring turbulence associated with the SEALs' current Mark V surface craft. That is one of the potential results of a bold development effort launched by the Defense Advanced Research Project Agency (DARPA). Called the Underwater Express, the program will examine the possible applications of a technology drat enables submerged objects to overcome water's enormous resistance and reach speeds greater than those that can be attained by most surface vessels.