The most dangerous time to them is the 2030s when the Columbias become operational and the Ohios become non-operational, said Rear Adm. Scott Pappano, and the margin is now determined by a fraction of ...

The Columbia-class ballistic-missile submarine is designed to be the most survivable color of the nuclear deterrent in the ...

The bow of the future USS District of Columbia (SSBN-826) left Newport News Shipbuilding this week and is en route to General Dynamics Electric Boat, where the submarine will be assembled and tested, ...

Leonardo DRS announced the opening of a new naval power and propulsion facility to support the U.S. Navy’s drive for ...

Add Yahoo as a preferred source to see more of our stories on Google. An undated photo of the completed bow module for the future USS District of Columbia at the HII Newport News Shipbuilding plant in ...

Nuclear ballistic missile submarine District of Columbia (SSBN-826) is more than halfway completed, with major modules due to arrive at General Dynamics Electric Boat by the end of the year, company ...

The Columbia-class submarine outstrips its predecessor, the Ohio class, in many ways—but falls short in one conspicuous one. America’s naval shipyards are a mess—and have been for many years. US ...

The Columbia class is slated to enter service in 2031—with very little room for error, as its predecessor, the Ohio-class SSBN, will be retired starting in 2017. General Dynamics Electric Boat, a ...

General Dynamics Electric Boat has taken delivery of the bow section of the future USS District of Columbia at its Groton shipyard, a major milestone as it aims to complete the $16.1 billion ballistic ...