Initial Navy estimates put the SSN(X) at roughly $5.8 billion per submarine. The Congressional Budget Office is less optimistic, with a 2025 estimate ranging from $7 billion to $8 billion a boat. The ...

SSN(X) is the Navy’s planned successor to the Virginia-class attack submarine. The service wants Seawolf speed and payload, ...

Add Yahoo as a preferred source to see more of our stories on Google. A new type of submarine has appeared in China, featuring X-form rudders for the first time on a crewed Chinese design. Whether the ...

U.S. Navy Cmdr. James Tuthill, commanding officer of the Los Angeles-class fast-attack submarine USS Annapolis (SSN 760), greets Royal Australian Navy Capt. Ken Burleigh, commanding officer of HMAS ...

In the designation SSN(X), the “X” means that the exact design of the boat has not yet been determined. The Navy’s FY2024 budget submission envisaged procuring the first SSN(X) in FY2035. The Navy’s ...

China has unveiled the design of an unprecedented large uncrewed diesel-electric drone submarine. An online defense news outlet reports that the design is reconfigurable to perform various missions, ...

For more than a century, submarines have quietly evolved from slow underwater boats into ...

Summary: The British Royal Navy’s latest nuclear-powered submarine, the Astute-class, represents a significant advancement in modern submarine technology. Designed to replace the older Trafalgar class ...

Experts believe that the Chinese have constructed a new nuclear-powered attack submarine that is topped with a low-profile sail and has advanced stealth capabilities.