# Hull, Mechanical, and Electrical Technical Refresh, Obsolescence Design, and Integration Efforts

**R-2A activity** of project 3441 — SBSD Technology Refresh  
**Program element:** 0603595N — SSBN New Design  
**Component:** U.S. Navy · **Budget Activity:** 4  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0603595N/3441/a0  
**Parent:** https://hitchintel.com/programs/0603595N/3441

## Summary

This activity requests $21.4M in FY2027, 40% of project 3441, down 4.9% 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 to expand the supplier base to address obsolescence for the COLUMBIA Submarine Class. - Finalize software sustainment plans for COLUMBIA Class CFE systems. - Implement initial tech refresh design work on selected systems.

**FY2026 to FY2027 change.** - Decrease due to net of updates made in accordance with the 2024 cost estimate and updated warfare center rate adjustments.

## Before the request year

**FY2026 plans — current year.** - Continue to expand the supplier base to address obsolescence for the COLUMBIA Submarine Class. - Finalize software sustainment plans for COLUMBIA Class CFE systems. - Implement initial tech refresh design work on selected systems.

## Funding

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 30.9 |
| FY2026 | Enacted | 22.5 |
| FY2027 | Request | 21.4 |

> 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 3441

- [Systems Engineering, Test and Evaluation](https://hitchintel.com/programs/0603595N/3441/a1) — FY2027 32.1

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibit R-2A, PE 0603595N project 3441 (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.*