R-2A Activity · President's Budget PB2027

New Design SSN HM&E

FY2027 Request
$164.8M
▼ 12% vs FY2026
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This activity requests $164.8M in FY2027, 88% of project 1947, down 12% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

FY2027 Request
$164.8M
▼ 12% vs FY2026
FY2026 Enacted
$187.7M
▼ 7.2% vs FY2025
FY2025 Actual
$202.2M
Prior year
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project 1947 of PE 0604558N. This is the budget justification's own description of work that has not happened yet — the one thing no other level of the budget carries.

FY2027 planned work

-Continue Virginia Class Submarine Undersea Dominance Payload Integration (UDPI) design efforts to modify the current host ship systems in support of launching payloads from multiple different hull/ocean interfaces. -Continue development of Hull, Mechanical & Electrical (HM&E) systems concepts technologies, including obsolescence redesign and performance improvement, for integration into Virginia Class Block VI technical baseline. -Continue transition of products from the Office of Naval Research (ONR) Manufacturing Technology Program (MANTECH) and transition of products from ONR Future Naval Capabilties (FNC) Programs. -Continue design, integration and critical item testing of components for Advanced Acoustic Sensors and organic advanced undersea warfare capabilities; -Continue design and integration of host ship modifications to support interaction and hosting of multiple types of UUVs via multiple ocean interfaces; -The continued evaluation, maturation, and integration of these candidate capabilities will support readiness for Block VI construction start. -Finalize preliminary design efforts in support of establishing Block VII technical performance measures -Establish the Block VII technical baseline. -Continue Block VIII concept studies, trade-space definition, and long-term development of HM&E system concept technologies.

FY2026 to FY2027 change

Decrease from FY26 to FY27 properly scales non-recurring engineering developmental scope of work planned in FY27.

Before the request year

FY2026: the year under way

Prior-year accomplishments and current-year plans from the same exhibit. Context for the FY2027 plan, not a series — an activity partitions its project exactly in the request year, but can under-cover it in earlier years.

FY2026 plans — current year

-Continue Virginia Class Submarine Undersea Dominance Payload Integration (UDPI) design efforts to modify the current host ship systems in support of launching payloads from multiple different hull/ocean interfaces. -Continue detailed design of Virginia Class Block VI technical baseline efforts; namely, Hull, Mechanical & Electrical (HM&E) systems concepts technologies, including obsolescence redesign and performance improvement efforts -Continue transition of products from the Office of Naval Research (ONR) Manufacturing Technology Program (MANTECH) and transition of products from ONR Future Naval Capabilties (FNC) Programs. -Continue design, integration and critical item testing of components for Advanced Acoustic Sensors and organic advanced undersea warfare capabilities; -Continue design and integration of host ship modifications to support interaction and hosting of multiple types of UUVs via multiple ocean interfaces; -Complete Block VII studies, trade-space definition, and long-term development of HM&E system concept technologies. -Continue preliminary design efforts in support of establishing Block VII technical performance measures and providing further definition to the technical baseline. -Continue initial Block VIII concept design, refining initial guidance to support tradespace and capability development efforts.

Money

Three years, and no five-year plan

An R-2A activity publishes the prior year, the current year and the budget year. The FYDP outyears exist at project and program-element level and are deliberately absent here rather than inferred. Estimate types are colored and never summed into one figure.

501001502000202.2FY25ACTUAL187.7FY26ENACTED164.8FY27REQUEST
Actual Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual202.2
FY2026Enacted187.7
FY2027Request164.8

This activity is 88% of project 1947's FY2027 request and 69% of PE 0604558N's. In the request year the activities under a project sum to it exactly; in the current year they under-cover it in about 9% of cases, so an activity's delta can legitimately exceed its parent's and the two must not be compared row to row.

Where this sits

2 activities in project 1947

Every R-2A line of this project, largest FY2027 request first. Linked where the activity has enough of its own narrative to carry a page; the rest are shown in full on the project page.

New Design SSN HM&E — this activity$164.8M ▼ 12%
TEST AND EVALUATION$22.5M ▲ 68%
Source
FY2027 Department of the Navy RDT&E Budget Justification · Exhibit R-2A · PE 0604558N, project 1947 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/0604558N/1947/a0.md · MCP mcp.hitchintel.combudget_get_activity