General Dynamics Electric Boat (GDEB) announced on 5 August 2024 that it has been awarded a USD 1.3 billion (EUR 1.19 billion) undefinitised contract modification allowing the company to purchase long lead time materials for the US Navy’s planned Virginia-class Block VI nuclear-powered attack submarines (SSNs).
“This contract modification sends a crucial demand signal, enabling our suppliers to invest in the capacity and materials needed to increase production volume,” Kevin Graney, GDEB president, was quoted as saying in a company press release. “Consistent funding for the supply base is essential to achieve the high-rate production the navy requires of the entire submarine enterprise.”
Virginia-class submarines are designed from the keel up for the full range of 21st-century mission requirements, including anti-submarine and surface ship warfare and special operations support.
Connecticut-based GDEB is the prime contractor and lead design yard for the Virginia class and constructs them in a teaming arrangement with HII’s Newport News Shipbuilding in Virginia.
The Block VI version of the Virginia-class SSN is the stepping stone to the US Navy’s next-generation SSN (SSNX).
There are currently 22 Virginia-class SSNs in service, as well as three that have been launched, another nine that are under construction and four future boats that will follow those.
The first Virginia-class Block VI boat is included in the Fiscal Year 2025 Pentagon budget request currently being debated in Congress.
The Block VIs boats will be the second set of Virginia-class attack submarines to feature the Virginia Payload Module after the second boat onwards of Block V.
While the 10 submarines comprising the Virginia class Blocks I and II had 12 Vertical Launch System tubes for firing Tomahawk cruise missiles, for Blocks III and IV these were replaced by two large-diameter 87-inch (2.2 m) Virginia Payload Tubes, each capable of launching six Tomahawk cruise missiles using multiple all-up round canisters, to save on construction costs.
The Virginia Payload Module will meet the US Navy’s requirement for a large-scale land strike missile platform after the service decommissions four Ohio-class guided-missile submarines by the end of the decade.







![Hybrid navies: Integrating uncrewed capability into carrier strike The US Navy (USN) carrier USS John C Stennis (left), the French Navy carrier FS Charles de Gaulle, and elements of their strike groups are pictured sailing together in US Fifth Fleet’s area of operations. The US, French, and UK navies are all developing ‘hybrid’ crewed/uncrewed mixes for their carrier airwing capability. [US Navy]](https://euro-sd.com/wp-content/uploads/2025/09/2-HST-CdG-USN-Kopie-218x150.jpg)



