General Dynamics Electric Boat (EB) will begin post-delivery work on the USS Oregon (SSN 793) at its shipyard in Groton, Connecticut.
The original equipment manufacturer will complete the $33m sole-source contract by 16 May 2024.
The work follows the vessel’s change of command in April this year, from commander Lacy Lodmell to commander John Ross. Before this, the vessel was the 20th Virgina-class SSN to be delivered to the US Navy, and the second Block IV unit of this variant, in February 2022.
The unit also underwent sea trials in December 2021, which were directed by US Navy Admiral Frank Caldwell Jr., director – Naval Nuclear Propulsion. The trials included a range of submarine and propulsion-plant operations, submerging for the first time, and high-speed runs on and below the surface to demonstrate that the ship’s propulsion plant is fully mission-capable.
Block IV Virginia-class submarines incorporate design changes focused on reduced total ownership cost. By making these smaller-scale design changes to increase the component-level lifecycle of the submarine, the Navy will increase the periodicity between depot maintenance availabilities and increase the number of deployments.
Blocks I-III Virginia-class submarines are planned to undergo four depot maintenance availabilities and conduct 14 deployments. Block IV design changes are intended to reduce planned availabilities by one to three, and increase deployments to 15.
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