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Massachusetts (SSN-798)

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Virginia Class Attack Submarine: Named Massachusetts (SSN-794) on 8 November 2015.
Keel laid on 11 December 2020.
Massachusetts will be delivered by Newport News Shipbuilding.
SSN-792 through approximately SSN-801 are planned to make up the Fourth Block. The main improvement over the Block III is the reduction of major maintenance periods from four to three, increasing each ship's total lifetime deployments by one. (Partial text courtesy of

Specifications:Power Plant: One S9G pressurized water reactor, 29.84MW (40,000hp), one shaft with pumpjet propulsor, Improved Performance Machinery Program Phase III one secondary propulsion submerged motor. Displacement, 7,800 tons submerged. Length: 377 feet. Draft: 32 feet. Beam: 34 feet. Speed: 25+ knots submerged. Depth: Greater than 800 feet. 12 VLS & four torpedo tubes, capable of launching Mark 48 torpedoes, UGM-109 Tactical Tomahawks, Harpoon (missile)s and the new advanced mobile mine when it becomes available: Unmanned Undersea Vehicles, Special Warfare: Dry Deck Shelter. Advanced SEAL Delivery System. Sonars: Spherical active/passive arrays. Light Weight Wide Aperture Arrays. TB-16, TB-29, and future towed arrays. High-frequency chin and sail arrays. Countermeasures: 1 internal launcher (reloadable 2-barrel) 14 external launchers. Crew: 134 officers and men.

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Virginia-class1.09kNewport News Shipbuilding is teamed with General Dynamics Electric Boat to build Virginia-class submarines. Newport News Shipbuilding builds the stern, habitability & machinery spaces, torpedo room, sail and bow. Electric Boat builds the pressure hull, engine room and control room. Newport News Shipbuilding and Electric Boat each perform work on the reactor plant as well as alternate on the final assembly, test, outfit and delivery. The team has been recognized as the best shipbuilding program in the Navy.
Virginia-class Infographic PDF.
Text & photo courtesy of
Massachusetts318kA gift of two plaques were presented to Commander Erik Lundberg, Captain of the Massachusetts (SSN-798) and Captain Jack Casey Executive Director of Battleship Cove. These two were cut from the same teak deck plank from the original wood that was installed onboard Big Mamie during her construction in 1942. They will eventually be on display for the crew of Massachusetts and Massachusetts (BB-59) showing the history and heritage of the ships named Massachusetts past, present and Future. Photos courtesy of Taswira Inaweza Kujumuisha.
Massachusetts653kA Massachusetts (SSN-798) unit is constructed in the Modular Outfitting Facility, August 2019. Photo # 10-DCS19-337-50 by Ashley Cowan courtesy of
387kGregory Raynor assembles an access hatch for Virginia-class submarine Massachusetts (SSN-798), March 2020. Photo # 8-DCS20-26-5 by Ashley Cowan courtesy of
442kGregory Raynor assembles an access hatch for Virginia-class submarine Massachusetts (SSN-798), August 2020. Photo # 10-DCS20-26-11 by Ashley Cowan courtesy of
160kKeel-Program Photo courtesy of
2.38kMaster Shipbuilder Ronnie Payne (far right) welds Ship Sponsor Sheryl Sandberg's initials into a steel plate during the keel authentication ceremony for submarine Massachusetts (SSN-798), on 11 December 2020. The plate will be permanently affixed to the submarine, symbolizing Sandberg’s lifelong relationship with the shipbuilders and crew. Also pictured were Newport News Shipbuilding President Jennifer Boykin (left) and Cmdr. Erik Lundberg, commanding officer of the pre-commissioning unit. Photo DCS20-463-91 by Matt Hildreth courtesy of
3.97kThe initials of submarine Massachusetts (SSN-798) Sheryl Sandberg were displayed at the ship’s keel authentication ceremony on 11 December 2020. Sandberg (center left) delivered pre-recorded remarks during the event, which marks the ceremonial start of construction. Present was Newport News Shipbuilding President Jennifer Boykin (left); Cmdr. Erik Lundberg, commanding officer of the pre-commissioning unit (center) and welder Ronnie Payne. Photo DCS20-464-167 by Ashley Cowan courtesy of
205kElectrician Danielle Herrington works on submarine Massachusetts (SSN-798), January-February-2021. Photo 7-DCS20-441-36 by Lena Wallace courtesy of
1.39kTwo Virginia-class submarine units – the bow dome for Massachusetts (SSN-798) and a unit for Utah (SSN-801) – await further construction outside of the Supplemental Modular Outfitting Facility, June 2021. Photo 2DCS21-135-41 by Ashley Cowan courtesy of

There is no DANFS History currently available for Massachusetts (SSN-798) at the Haze Gray & Underway Web Site, the main archive for the DANFS Online Project.
Crew Contact And Reunion Information
Not applicable to this ship.
Additional Resources and Web Sites of Interest
The VIRGINIA Class America's Next Submarine
The Virginia Class—A New Submarine for the 21st Century
SSN-774 Virginia-class NSSN New Attack Submarine Centurion
Making a Submarine - General Dynamics
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