The Virginia-class submarine future USS Delaware (SSN-791) at sea for sea trials in the Atlantic Ocean on Aug, 31, 2019. (Photo: U.S. Navy)
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The Navy’s commander of the submarine forces said the service is looking at three tracks for SSN (X), the next generation attack submarine: using the Virginia-class attack submarine, Columbia-class ballistic missile submarine, or a totally new hull form.
“We…