The pressure hull for the future USS Massachusetts. (Photo: HII)
Completing the pressure hull is the last major construction milestone for the submarine before it is launched.
Huntington Ingalls Industries (HII) Newport News Shipbuilding, which is building Massachusetts, is one of two US shipyards capable of designing and building nuclear-powered submarines.
The other yard building the Virginia-class is General Dynamics Electric Boat.
Massachusetts is the 25th Virginia-class SSN for the USN.
According to Shephard Defence Insight, each Virginia-class boat has a submerged displacement of 7,925t and measures 114.8m in length.
The boats are powered by a GE PWR S9G nuclear reactor and two turbines offering an unlimited range and a maximum speed of around 25kts.
Virginia Class Attack Submarine (SSN 792-SSN 811)
Forming part of the Reconciliation Bill, the funding will support multiple efforts involving autonomous capabilities, interceptors, missiles, rockets and torpedoes.
The delivery acceptance of the future USS Pierre marks the conclusion of the construction phase for the Independence-variant.
The new Barracuda version has been engineered to perform enhanced subsea and seabed warfare missions.
The nearly $25 billion investment will cover USCG procurement of cutters, aircraft, helicopters, training simulators and Polar capabilities over the next four years.
After commissioning, FRC Frederick Mann will operate in Alaska and perform multiple missions.
The US Coast Guard (USCG) created new units, including five Programme Executive Offices (PEOs), to facilitate and speed up the procurement of new capabilities.
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