
Production on the first new Columbia-class ballistic missile submarine (SSBN) is 10 percent behind schedule while Virginia-class attack submarines (SSN) are improving but still significantly behind schedule themselves, the Secretary of the Navy told a congressional panel this week. “In fact, I think we do have clear visibility into the challenges that Columbia faces. She’s currently about 10 percent behind schedule is what she is, given the challenges that were faced with COVID and supply chains not being able to…