RDT&E Project · President's Budget PB2027

Sub Sonar Improvement (ENG)

Project 0219·PE 0604503N — Submarine SWFTS Modernization·U.S. Navy·BA5
FY2027 Request
$60.7M
▼ 10% vs FY2026
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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.

FY2027 Request
$60.7M
▼ 10% vs FY2026
FY2026 Enacted
$67.5M
▲ 11% vs FY2025
FY2025 Actual
$60.6M
Prior year
Project detail

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
Funding trajectory

Project 0219 funding, FY2025–FY2031

Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.

2550060.6FY25ACTUAL67.5FY26ENACTED60.7FY27REQUEST66.4FY2868.1FY2968.1FY3069.4FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual60.6
FY2026Enacted67.5
FY2027Request60.7
FY2028Outyear66.4
FY2029Outyear68.1
FY2030Outyear68.1
FY2031Outyear69.4
Inside the project

3 accomplishments / planned programs

The R-2A exhibit — the only level of the budget that describes work that has not happened yet. Activities carry the prior, current and budget year only, no five-year plan. 2 of them describe FY2027 work in enough detail to have their own page; the rest are shown here in full. Coverage is partial across the corpus, so count activities, never total them.

FY2025 actual$39.2M
FY2026 enacted$42.3M
FY2027 request$35.0M

-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…

Read the FY2027 plan →
FY2025 actual$17.3M
FY2026 enacted$21.0M
FY2027 request$21.5M

-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…

Read the FY2027 plan →
A-RCI Acoustic Superiority Integration▲ 2%
FY2025 actual$4.1M
FY2026 enacted$4.2M
FY2027 request$4.3M

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.

Who's building it

Named performers on project 0219

Performers named in the R-3 exhibit under this project. Share is of the project's whole FY2027 R-3 total — the same denominator the program-element split uses, so the two read on one scale and will not sum to 100% when unnamed or government work is in the mix. Budget-justification contract funding, not obligations.

LMC
$24.6M · 41%
Progeny Systems
$7.3M · 12%
General Dynamics
$5.9M · 9.7%
Alion, BAH, AECOM
$0.7M · 1.1%