# APB Productionization

**R-2A activity** of project 0219 — Sub Sonar Improvement (ENG)  
**Program element:** 0604503N — Submarine SWFTS Modernization  
**Component:** U.S. Navy · **Budget Activity:** 5  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604503N/0219/a0  
**Parent:** https://hitchintel.com/programs/0604503N/0219

## Summary

This activity requests $21.5M in FY2027, 35% of project 0219, up 2.0% 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 Advanced Processing Build (APB) development and transition of APB software from development to A-RCI for integration, testing, and formal certification. -Ensure continued transition of the SSBN legacy sonar system to the TI/APB model. -Transition development of in-board signal processing associated with the Large Vertical Array (LVA) to VIRGINIA Class modernization.

**FY2026 to FY2027 change.** FY 2026 to FY 2027 reflects increase of $0.421M due to inflation rates.

## Before the request year

**FY2026 plans — current year.** -Continue Advanced Processing Build (APB) development and transition of APB software from development to A-RCI for integration, testing, and formal certification. -Ensure continued transition of the SSBN legacy sonar system to the TI/APB model. -Transition development of in-board signal processing associated with the Large Vertical Array (LVA) to VIRGINIA Class modernization.

## Funding

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 17.3 |
| FY2026 | Enacted | 21.0 |
| FY2027 | Request | 21.5 |

> 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 0219

- [Integration and Testing](https://hitchintel.com/programs/0604503N/0219/a1) — FY2027 35.0
- A-RCI Acoustic Superiority Integration — FY2027 4.3

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibit R-2A, PE 0604503N project 0219 (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.*