ジェネラル・ダイナミクス・エレクトリック・ボート
On 22 March 2021, the U.S. Navy added a 10th ship in Block V series of the "Virginia"-class attack submarine, issuing a $2.4 billion adjustment on a contract initially awarded in December 2019. This brings the total cost of the contract with prime contractor General Dynamics Electric Boat to $24.1 billion. The net increase for the contract is $1.89 billion, according to a General Dynamics release. Huntington Ingalls Industries' Newport News shipyard is the partner yard in the program.