Militaries are entering a new era of warfare that includes watercraft with greater stealth, more firepower, increased versatility, and a higher level of automation than we’ve ever seen before.
Many advanced vessels are developed in secrecy; and even when they are revealed, their technology often remains a mystery. From nearly silent subs to autonomous boats to large, powerful ships, this list includes the most top-secret vessels roaming the seas and currently in development.
23. Haijian 50
At 321 feet long, the Haijian 50 is the world’s largest patrol ship. This secret surveillance vessel displaces 10,000 tons and has a top speed of just over 20 miles per hour.
A unique feature of the Haijian 50 is the auxiliary propellers, which allow the ship to rotate in place. The ship’s dynamic positioning system also allows her to hold her position in up to Level 7 wind speed.