# New Design SSN HM&E

**R-2A activity** of project 1947 — New Design SSN HM&E  
**Program element:** 0604558N — New Design SSN  
**Component:** U.S. Navy · **Budget Activity:** 5  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604558N/1947/a0  
**Parent:** https://hitchintel.com/programs/0604558N/1947

## Summary

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.

## What the FY2027 request buys

**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 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.

## Funding

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 202.2 |
| FY2026 | Enacted | 187.7 |
| FY2027 | Request | 164.8 |

> Prior, current and budget year only — an R-2A activity carries no five-year plan. It sums exactly into its project in the request year and not necessarily in any other.

## Other activities in project 1947

- [TEST AND EVALUATION](https://hitchintel.com/programs/0604558N/1947/a1) — FY2027 22.5

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibit R-2A, PE 0604558N project 1947 (PB PB2027). Narrative is the government's own text.
- **No marks, no contractors at this grain** — congressional marks land on the program element and R-3 performers on the project.
- **MCP:** `mcp.hitchintel.com` — `budget_get_activity`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*