HII’s Newport News Shipbuilding (NNS) division has completed the first set of sea trials for the Virginia-class attack submarine Massachusetts (SSN 798).
The trials, which took place over several days at sea, were a collaborative effort between NNS and the US Navy.
During this critical phase, the team tested various systems and components of the submarine.
Key aspects of the evaluation included the vessel's first submersion and execution of high-speed manoeuvres both on the surface and while submerged.
The testing programme will advance at NNS as it prepares for the eventual handover of this potent vessel to the US Navy.
NNS president Kari Wilkinson said: “Our entire team at Newport News Shipbuilding understands the importance of delivering capability to our fleet. Proving capabilities through this first sea trial for Massachusetts is an important step in demonstrating this and we are honoured to support the mission.”
The Massachusetts is the 25th Virginia-class submarine and represents the 12th delivery by NNS.
It was launched into the James River in February 2024.
The Virginia-Class submarines are built by a partnership between NNS and General Dynamics Electric Boat.
The Virginia-class submarines have a standard length of 377 feet (ft,) a beam of 34ft, and a submerged displacement of around 7,800 tonnes.
The submarines come equipped with four 21-inch diameter torpedo tubes and have a payload capacity for about 25 torpedoes.
Designed for a wide range of missions in both deep ocean and near-shore environments, these submarines are set to replace retiring Los Angeles-class submarines.
The Virginia-class submarines incorporate technologies that boost their firepower, manoeuvrability, and stealth capabilities, significantly enhancing their combat effectiveness.
