A new kind of boat is designed to move quickly and stealthily through water by generating a layer of gas around its underwater surfaces.
The design reduces friction by a factor of 900, according to the New Hampshire company that produced the boat. Its smooth speed makes it ideal for special operations. It could also revolutionize shipping.
Juliet Marine recently unveiled the Ghost, a ship it says can reach speeds of up to 60 miles per hour. The shape of the craft is similar to earlier attempts at making watercraft less visible to radar — notably the Navy’s “Sea Shadow” project of the 1980s.
The phenomenon is called supercavitation. Supercavitation occurs when a projectile moving through water generates a low-pressure zone around its surface. Go fast enough and the low-pressure zone becomes a layer of gas. In that respect the Ghost is similar to a Russian-made torpedo (called the “Shkval,” or squall), though the underwater portion of the boat’s twin hulls are a new design.
Juliet Marine Systems, Inc. Announces the First Super-Cavitating Ship, GHOST
Stealth Boat Glides Over Gas Layer
‘Ghost’ craft comes into view
Ghost ship unveiled: Stealth vessel is ‘virtually unstoppable
GHOST Boats Will Prey on Pirates
Pirate-fighter vessel revealed by Juliet Marine
Juliet Marine Develops Offshore Anti-Piracy Platform
“Stealth” Boat Could Revolutionize Naval Warfare
Juliet Marine Systems
Given the massive debt hole the U.S. is already in and that the Sea Shadow ended up being scrapped, I’m not sure the Navy really needs a new “stealth boat” like the Ghost, especially if it’s primary purpose would be to combat pirates. Pirates, for the most part, don’t have radar. The problem isn’t sneaking up on them, the problem is finding them in the first place and we don’t need a “stealth boat” for that.
/the supercavitation technology does, however, appear to be extremely promising in terms of possible commercial shipping applications where time and fuel are money
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