# Systems Engineering, Test and Evaluation

**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/a1  
**Parent:** https://hitchintel.com/programs/0603595N/3441

## Summary

This activity requests $32.1M in FY2027, 60% of project 3441, up 38% 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.** Ship Control, Hydrodynamics and Shock: - Continue simulation development focus on refining operational boundaries. - Support for SSM development. Propulsor and Shafting: - Continue analysis of data collected during modal testing of as-built propulsor components and assemblies to inform and improve computational models. - Update performance achievability assessments to reflect as-manufactured parts. - Support emergent design requirements during installation of propulsor components at the shipyard. - Continue testing of propulsor bearing first production unit at Full Scale Bearing Test Facility to evaluate performance and generate design feedback. - Continue design development and manufacturing feasibility studies for potential changes for shafting system components to implement on later hulls. Signatures: - Update whole-boat signature predictions using updated component modeling and predictive tools. - Support GFE design efforts for CLB ship system components and demonstration testing. - Update numerical modeling approaches to assess in-service electric signatures to reduce test time and prioritize maintenance decisions. - Provided to support GFE system tech refresh and integration into lead ship baseline and follow-on hulls based on lessons learned from future naval capability efforts and component acceptance and integration testing.

**FY2026 to FY2027 change.** - Increase due to alignment with the NRE RDT&E Requirements from the 2024 05C Cost Checkpoint, updated warfare center rate adjustments, and support of FY 2027 ship schedules.

## Before the request year

**FY2026 plans — current year.** Ship Control, Hydrodynamics and Shock: - Support Ship Control Algorithm development to include SFA (Steady Flight Assist) - Continue to support development of 1st Ship Control Crew Trainer at EB, Groton, CT - Preparations to conduct the Large Scale Vehicle Test. - Continue simulation development focus on refining operational boundaries. - Support for SSM development. Diesel Exhaust: - Complete the Phase III material testing and characterization of the down selected material to verify material suitability for the Diesel Exhaust. - Complete the testing report and generate the Objective Quality Evidence to support a Material Selection Information submittal for NAVSEA approval. Propulsor and Shafting: - Continue analysis of data collected during modal testing of as-built propulsor components and assemblies to inform and improve computational models. - Update performance achievability assessments to reflect as-manufactured parts. - Support emergent design requirements during installation of propulsor components at the shipyard. - Continue testing of propulsor bearing first production unit at Full Scale Bearing Test Facility to evaluate performance and generate design feedback. - Continue design development and manufacturing feasibility studies for potential changes for shafting system components to implement on later hulls. Signatures: - Support GFE Ship System technology refresh for CLB lead ship. - Develop updated numerical modeling techniques to improve prediction capabilities and support reviews/assessments of Shipbuilder products by Subject Matter Experts. - Develop updated component modeling tools which support analysis and diagnostics of potential signature issues identified during ship construction, at-sea demonstration testing, and design changes. Mature modeling tools can reduce future time and costs associated with R&D testing of signatures-related issues.

## Funding

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 17.8 |
| FY2026 | Enacted | 23.2 |
| FY2027 | Request | 32.1 |

> 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

- [Hull, Mechanical, and Electrical Technical Refresh, Obsolescence Design, and Integration Efforts](https://hitchintel.com/programs/0603595N/3441/a0) — FY2027 21.4

## 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.*