The following is the Feb. 17, 2022, Congressional Research Service report, Navy Virginia (SSN-774) Class Attack Submarine Procurement: Background and Issues for Congress.
From the report
The Navy has been procuring Virginia (SSN-774) class nuclear-powered attack submarines (SSNs) since FY1998, and a total of 34 have been procured through FY2021. Since FY2011, Virginia-class boats have been procured at a rate of two per year. Virginia-class boats scheduled for procurement in FY2019-FY2023 are being procured under a multiyear procurement (MYP) contract.
Most Virginia-class boats procured in FY2019 and subsequent years are to be built with the Virginia Payload Module (VPM), an additional, 84-foot-long, mid-body section equipped with four large-diameter, vertical launch tubes for storing and launching additional Tomahawk missiles or other payloads. When procured at a rate of two boats per year, VPM-equipped Virginia-class SSNs have an estimated procurement cost of about $3.45 billion per boat.
The Navy’s proposed budget requests the procurement of the 35th and 36th Virginia-class boats. The two boats have an estimated combined procurement cost of $6,915.8 million (i.e., about $6.9 billion). The two boats have received $1,888.3 million in prior-year “regular” advance procurement (AP) funding, and $778.2 million in Economic Order Quantity (EOQ) funding, which is an additional kind of AP funding that can occur under an MYP contract. The Navy’s proposed FY2022 budget requests the remaining $4,249.2 million needed to complete the two boats’ estimated combined procurement cost of $6,915.8 million. The Navy’s proposed FY2022 budget also requests $2,120.4 million in AP funding for Virginia-class boats to be procured in one or more future fiscal years, bringing the total amount of procurement and AP funding requested for the Virginia-class program to $6,369.6 million (i.e., about $6.4 billion).
The Navy’s current force-level goal, which was released in December 2016, calls for achieving a maintaining a fleet of 355 manned ships, including 66 SSNs. On June 17, 2021, the Navy released a long-range Navy shipbuilding document that calls for a Navy with 321 to 372 manned ships, including 66 to 72 SSNs, plus additional large surface and underwater unmanned vehicles (UVs).
Under the Navy’s FY2020 30-year (FY2020-FY2049) shipbuilding plan, SSNs would be procured at a steady rate of two per year. The June 17, 2021, document suggests that the SSN procurement would eventually be increased to something more than two boats per year.
Potential oversight issues for Congress regarding the Virginia-class program include the SSN force-level goal and procurement rate, the industrial-base challenges of building both Virginia-class SSNs and Columbia-class ballistic missile submarines (SSBNs) at the same time, the potential impact of the COVID-19 pandemic on submarine construction, and cost and schedule risk in building the latest (i.e., Block V) version of the Virginia-class design.
Download the document here.