USS Massachusetts (SSN-798)
Massachusetts in October 2025 during her sea trials | |
| History | |
|---|---|
| United States | |
| Name | Massachusetts |
| Namesake | Commonwealth of Massachusetts |
| Ordered | 28 April 2014[1] |
| Builder | Newport News Shipbuilding, Newport News, Virginia |
| Laid down | 11 December 2020[2] |
| Launched | 23 February 2024 |
| Sponsored by | Sheryl Sandberg[2] |
| Christened | 6 May 2023[3] |
| Commissioned | 28 March 2026 (scheduled) |
| Identification | Hull symbol: SSN-798 |
| Motto |
|
| Status | Delivered |
| General characteristics | |
| Class & type | Virginia-class submarine |
| Displacement | 7,800 tons |
| Length | 377 ft (115 m) |
| Beam | 34 ft (10.4 m) |
| Draft | 32 ft (9.8 m) |
| Propulsion | S9G reactor auxiliary diesel engine |
| Speed | 25 knots (46 km/h) |
| Endurance | can remain submerged for up to 3 months |
| Test depth | greater than 800 ft (244 m) |
| Complement |
|
| Armament | 12 VLS tubes, four 21 inch (530 mm) torpedo tubes for Mk-48 torpedoes BGM-109 Tomahawk |
USS Massachusetts (SSN-798) is a Virginia-class nuclear powered attack submarine delivered to the United States Navy and due to be commissioned in late March 2026. She is the 25th submarine of the class, and is named for the U.S. state of Massachusetts—the eighth such vessel.
History
SSN-798 was part of a $17.6 billion contract awarded by the U.S. Navy to prime contractor General Dynamics Electric Boat to construct 10 Virginia-class submarines.[4] Ray Mabus, then Secretary of the Navy, announced the name Massachusetts on 8 November 2015 in an opinion piece for The Boston Globe.[5] She became the first Navy vessel to be named after the Commonwealth since the battleship USS Massachusetts (BB-59), which was decommissioned in 1947.[6]
Her keel was laid 11 December 2020 at Newport News Shipbuilding, in a virtual ceremony due to the COVID-19 pandemic.[2] She was christened by ship sponsor Sheryl Sandberg on 6 May 2023.[3] In November 2023, Secretary of the Navy Carlos Del Toro advised that Boston would be the site of her ship commissioning.[7]
She completed her initial sea trials on 7 October 2025.[8] The U.S. Navy accepted delivery on 21 November. [9] Her commissioning ceremony has been scheduled for 28 March 2026 at the Conley Terminal in South Boston.[10]
-
Stern view during sea trials
-
View from above the bow
References
- ^ "Naval Vessel Register".
- ^ a b c "Huntington Ingalls Industries Authenticates Keel of Virginia-Class Attack Submarine Massachusetts (SSN 798)" (Press release). Huntington Ingalls Industries. 11 December 2020. Retrieved 12 December 2020.
- ^ a b "HII Christens-Virginia-Class Attack Submarine Massachusetts (SSN 798)" (Press release). HII. 6 May 2023. Retrieved 6 May 2023.
- ^ "U.S. Navy Awards 'Largest Shipbuilding Contract' in Service History". USNI News. 28 April 2014. Retrieved 12 December 2020.
- ^ Mabus, Ray (8 November 2015). "New sub USS Massachusetts critical to growing fleet". The Boston Globe. Retrieved 8 November 2015.
- ^ Levenson, Eric (6 November 2015). "A nuclear attack sub will become the newest USS Massachusetts". Boston.com. Retrieved 8 November 2015.
- ^ Reynolds, Lance (15 November 2023). "Navy selects Boston as commissioning site for new USS Massachusetts nuclear attack submarine". Boston Herald. Retrieved 17 November 2023.
- ^ "HII Completes Initial Sea Trials of Virginia-Class Submarine Massachusetts (SSN 798)". HII. Retrieved 7 October 2025.
- ^ "Future USS Massachusetts Delivered to U.S. Navy". Naval Sea Systems Command. Retrieved 21 November 2025.
- ^ "Commissioning of the Submarine USS Massachusetts". ussmassachusetts.org. USS MASSACHUSETTS (SSN 798) Commissioning Committee. Retrieved 27 February 2026.