Moreover, attack subs rely on silence to watch their rivals and get the upper hand if they enter combat. Another trait submarines need is speed. They're far from the fastest vessels in the world's ...

The Navy has been procuring Virginia-class nuclear powered attack submarines (SSNs) since FY1998. The Navy’s envisaged successor to the Virginia-class design is the Next-Generation Attack ...

The construction of four diesel powered Scorpene-class attack submarines for the Brazilian Navy was launched on Saturday at a plant near Rio de Janeiro. Brazil and France signed a 4.25 billion US ...