The new sub envelops a submerged vessel inside an air bubble to avoid problems caused by water drag
Daily Mail: US Navy is developing 'supersonic submarines' that could cut through the ocean at the speed of sound using a bubble
* Vessel travels inside a 'bubble' to reduce drag
* This allows it to reach supersonic speeds
* Technique could also be used to develop superfast swimsuits
As swimmers know, moving cleanly through the water can be a problem due o the huge amounts of drag created - and for submarines, this is even more of a problem.
However, US Navy funded researchers say they have a simple solution - a bubble.
Researchers at Penn State Applied Research Laboratory are developing a new system using a technique called supercavitation.
Read more ....
WNU Editor: I suspect we are still far away from developing such a sub .... but the tech looks promising.
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