# Project 0219 — Sub Sonar Improvement (ENG)

**Program element:** 0604503N — Submarine SWFTS Modernization  
**Project:** 0219  
**Component:** U.S. Navy  
**Appropriation:** 1319 — RDT&E, Navy  
**Budget Activity:** 5 — System Development & Demonstration  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604503N/0219  
**Parent:** https://hitchintel.com/programs/0604503N

## Summary

Project 0219 — Sub Sonar Improvement (ENG) requests $60.7M in FY2027, 31% of the $195.4M requested for program element 0604503N, down 10% on FY2026. 3 R-2A activities decompose the request. LMC is the largest named R-3 performer at $24.6M, 41% of the project's FY2027 R-3 total.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 60.6 |
| FY2026 | Enacted | 67.5 |
| FY2027 | Request | 60.7 |
| FY2028 | Outyear | 66.4 |
| FY2029 | Outyear | 68.1 |
| FY2030 | Outyear | 68.1 |
| FY2031 | Outyear | 69.4 |

> Estimate types are not summed. This project is one leaf of PE 0604503N; the PE total is the sum of its projects, never added to them.

## What project 0219 buys

The AN/BQQ-10(V) Acoustic Rapid COTS Insertion (A-RCI) Submarine SONAR system will continue to add new capabilities via Technical Insertion (TI)/Advanced Processing Build (APB) process while working across Submarine Warfare Federated Tactical System (SWFTS) programs to transition to Development Security Operations (DevSecOps) software processes and migrate to a cloud-based architecture. The Navy is pursuing a transformation across SWFTS (PE 0604503N Projects 0219, 0236, 0253 and 0775) to maximize cyber-resiliency and the speed of capability delivery. This program delivers block updates to Sonar Systems installed on SSN 688, 688I, SSN 21, VIRGINIA, SSBN, and SSGN Class Submarines to maintain clear acoustical, tactical, and operational superiority over Submarines and Surface Combatants in all scenarios through detection, classification, localization, and contact following. Acoustics Rapid COTS Insertion (A-RCI) provides multi-phased evolutionary development geared toward addressing acoustic superiority issues through the rapid introduction of interim development products applicable to all Classes of Submarines. - A-RCI Phase I and II introduced Towed Array processing improvements - Phase III introduced Spherical Array processing improvements - Phase IV provided High Frequency (HF) Array processing improvements for SSN 688I, SSGN, SSBN, VIRGINIA, and SSN 21 Class Submarines. As part of the Navy's plan to maintain acoustic superiority for in-service submarines, a joint cooperative effort was established to deliver bi-annual Advanced Processing Builds (APBs) to prevent obsolescence and deliver ongoing capability improvements. - Capabilities in the APBs will be integrated as part of A-RCI certified systems. Sensor Efforts provide increased operational capabilities for littoral operations, situational awareness, and reliability improvements.

**R-3 lines of work:** Product Development; Support; Test and Evaluation; Management Services.

## Named R-3 performers

| Performer | $M | Share of this project's FY2027 R-3 total |
|---|---|---|
| LMC | 24.6 | 41% |
| Progeny Systems | 7.3 | 12% |
| General Dynamics | 5.9 | 9.7% |
| Alion, BAH, AECOM | 0.7 | 1.1% |

> Budget-justification contract funding, not obligations. Shares need not reach 100% — unnamed and government work is in the denominator.

## Activities (R-2A) — 3

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| Integration and Testing | 39.2 | 42.3 | 35.0 | −17% | [a1](https://hitchintel.com/programs/0604503N/0219/a1) |
| APB Productionization | 17.3 | 21.0 | 21.5 | +2% | [a0](https://hitchintel.com/programs/0604503N/0219/a0) |
| A-RCI Acoustic Superiority Integration | 4.1 | 4.2 | 4.3 | +2% | — |

> Activities carry the prior, current and budget year only — no five-year plan. In the request year they partition this project exactly; in earlier years they can under-cover it.

### Integration and Testing

-Continue support of Advanced Processing Builds installed on SSN688I, SSN 21, SSBN, SSGN, and VA Class Submarines. -Continue integration and testing associated with signal processing in support of Large Vertical Array (LVA) on SSBN and VA Class submarines. -Transition A-RCI APB content delivery to SWFTS Continuous Capability Insertion…

Full year-by-year narrative: https://hitchintel.com/programs/0604503N/0219/a1

### APB Productionization

-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…

Full year-by-year narrative: https://hitchintel.com/programs/0604503N/0219/a0

### A-RCI Acoustic Superiority Integration

**FY2027 planned work.** -Continue development of emerging capability improvements for current and future threats by supporting development, integration, and testing of emerging capability improvements in passive long range detection/wide area search for current and future threats in support of Navy SSN/SSBN Acoustic Superiority initiatives.

**FY2026 to FY2027 change.** FY 2026 to FY 2027 reflects increase of $0.084M due to escalation rates.

**FY2026 plans — current year.** -Continue development of emerging capability improvements for current and future threats by supporting development, integration, and testing of emerging capability improvements in passive long range detection/wide area search for current and future threats in support of Navy SSN/SSBN Acoustic Superiority initiatives.

## What is NOT on this page

Congressional marks, the R-2 mission description and acquisition strategy, the industry vs government split of the whole request, and related program elements are recorded at **program-element** grain — an NDAA mark lands on a PE, never on a project. They are at https://hitchintel.com/programs/0604503N.

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0604503N project 0219 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0604503N")`.

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