The US Navy’s largest-ever nuclear submarine, the USS District of Columbia (SSBN-826), moves closer to launch with final propulsor delivery.
To reshape America’s nuclear deterrent and improve maritime capabilities, the US Navy’s first Columbia-class ballistic missile submarine , the future USS District of Columbia , has moved closer to reality.
The US Navy’s Naval Foundry and Propeller Center has delivered the final major propulsor component of the submarine to General Dynamics-Electric Boat to complete the development of the first Columbia-class SSBN.According to a press release by the US Navy, GDEB accepted the component in Philadelphia and transported it to the shipyard in Groton, CT.Next-generation US Navy nuclear submarineThe delivery marks a historic milestone for NFPC and the culmination of a years-long project. Before the submarine’s keel was laid in 2022, NFPC worked on the propulsor’s patterns, molds, and castings, with the first sub-component pour in 2019 and the final large component cast in 2021.NFPC’s journey to produce the propulsor for the District of Columbia has pushed engineering innovation to new heights, resulting in multiple record-breaking pours for nonferrous castings in the US. The largest casting was over 260,000 pounds and is already at GDEB for installation. According to the US Navy, NFPC poured nearly 1 million pounds of bronze and removed over 200,000 pounds of machine chips on the lead ship project.Once completed, the District of Columbia will be the first ship of its kind, set to replace the Navy’s current Ohio-class SSBNs. The Columbia-class is the nation’s future sea-based strategic deterrent, the Navy’s number one acquisition priority, and will provide the most survivable leg of the nation’s strategic triad. The class will ensure continuous sea-based strategic deterrence into the 2080s and will be our nation’s largest, most capable, and most advanced submarine.NFPC has produced four components for the District of Columbia. Once completed at the foundry, the components are transported by truck or barge to the GDEB shipyard, responsible for the final assembly of all Columbia-class submarines. Biggest US submarineThe District of Columbia will be the US largest nuclear submarine ever built, representing the future of America’s naval defense. The submarine will have a submerged displacement of 20,810 long tons and measure 560 feet in length. With a beam of 43 feet , this submarine is envisaged to reach speeds of over 20 knots and dive to depths of more than 800 feet. Powered by a nuclear reactor, it will feature a turbo-electric drive and a pump-jet propulsion system, allowing for an unlimited operational range. The crew accommodation is designed for 155 personnel.The Columbia-class submarine’s expected service life is around 42 years and planned to be in service till the 2080s. During this time, each submarine is planned to conduct approximately 124 deterrent patrols. The submarine will have a life-of-the-ship nuclear fuel core, eliminating the need for mid-life refueling that was necessary for the older Ohio-class submarines. The missile launch system retains the same size as the Ohio class to hold the Trident D5 missiles, but it has 16 launch tubes instead of 24, reflecting a shift in strategic focus. The overall submerged displacement will be similar to that of the Ohio class while maintaining a beam that matches or exceeds the 42 feet of the older models.Additional design features include X-shaped stern control surfaces for better maneuverability, sail-mounted dive planes for improved diving efficiency, and an integrated power system that works seamlessly with the nuclear reactor. The submarine will also utilize a nuclear electric drive, a pump-jet propulsor for quiet operation, and an anechoic coating that helps reduce noise detection.Its large aperture bow sonar and stern area systems further enhance its operational capabilities in surveillance and combat scenarios.The Navy’s FY2025 budget notes that the USS District of Columbia will be delivered in October 2027, the second in October 2030 , the third in July 2032, and the fourth in July 2033.However, an April 2024 delivery review ordered by Navy Secretary Carlos Del Toro reportedly states that SSBN-826 is projected to be between 12 and 16 months late. If this occurs, it will push delivery of SSBN-826 until October 2028 or early 2029 instead of the planned delivery in fiscal year 2027.
Defense &Amp Military Nuclear Submarines Submarine US Navy
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Beam back to the USS Callister in mindbending new 'Black Mirror' Season 7 trailerJeff Spry is an award-winning screenwriter and veteran freelance journalist covering TV, movies, video games, books, and comics. His work has appeared at SYFY Wire, Inverse, Collider, Bleeding Cool and elsewhere.
Read more »
Houthis claim new attacks on U.S. aircraft carrier USS Harry S. TrumanHouthis are responding after U.S. airstrikes ordered by President Deonald Trump
Read more »
Alameda briefs: USS Hornet hosting CarrierCon cosplay event on SaturdayNate is an East Bay community papers editor for the East Bay Times and Bay Area News Group.
Read more »
Satellite photo shows US aircraft carrier USS Harry S. Truman leading strikes on Iran-backed HouthisThe USS Harry S. Truman carrier strike group is positioned approximately 480 miles from Houthi-controlled territory in Yemen.
Read more »
LIVE: USS Nimitz passing by Seattle during likely final deploymentThe USS Nimitz will pass by Seattle for what is likely to be its final deployment before it leaves Naval Base Kitsap ahead of its planned decommissioning.
Read more »
Famed carrier USS Nimitz visits San Diego before final deploymentThe nuclear-powered flat-top spent 11 of its 50 years operating out of North Island.
Read more »