Roll-up of 2 projects. Projects are the summable leaves — the PE total is their sum, never added to it.
For fiscal year 2027, the U.S. Navy is requesting $48.9M for Acoustic Search Sensors under RDT&E program element 0604261N, down 7.0% from FY2026.
Funding profile, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 51.9 |
| FY2026 | Enacted | 52.5 |
| FY2027 | Request | 48.9 |
| FY2028 | Outyear | 52.0 |
| FY2029 | Outyear | 53.5 |
| FY2030 | Outyear | 53.5 |
| FY2031 | Outyear | 54.6 |
Acquisition lifecycle
This program is funded in RDT&E Budget Activity 5 — System Development & Demonstration.
2 projects roll up into PE 0604261N
Projects are the summable leaves — the PE total is their sum, never added to it. Program elements and projects carry the full five-year plan; activities stop at the budget year. This PE moves -7% overall, which can hide much larger swings below.
High Altitude ASW
Congressional marks
Committee marks on the FY2027 request. Adds and cuts are reconciled in conference before they become law.
Where the FY2027 request goes
Performers named in the R-3 exhibit, resolved into industry, government-lab, and unspecified shares. Budget-justification contract funding, not obligations.
| Where FY2027 funding flows | Share | $M |
|---|---|---|
| Industry primes | 45% | 21.8 |
| Other / unspecified | 55% | 27.0 |
| FY2027 request | 100% | 48.9 |
Mission & acquisition strategy
The Anti-Submarine Warfare (ASW) Sensors and Processing project provides tools and methods necessary to maintain maritime superiority by preventing near-peer threat submarines from completing their hostile missions or disrupting the U.S. Navy's ability to control sea lanes of communication. Project 0480 provides funding for Engineering & Manufacturing Development and follow-on Production and Deployment of new and/or improved passive and active air ASW family of systems that enable cuing, search, detection, localization, track, and attack of subsurface targets.
The MAC-E ASW system and associated sonobuoys are fully integrated on the P-8A ASW platform to maintain superiority by preventing near peer threat submarines from completing hostile missions. MAC-E is a development program associated with P-8A Increment 3 that will improve mission effectiveness by significantly increasing the wide area search capability through Engineering Change Proposals (ECPs) to the sonobuoys, aircraft software modifications to reduce clutter and improve processing, and Operator Machine Interface (OMI) improvements to reduce operator workload. USA continues to expand on threat submarine advancements through the introduction of a series of sensor system capability enhancements.
- Product Development
- Support
- Test and Evaluation
- Management Services
Ask this program element
Answers are generated from the figures on this page — the FY2027 justification exhibits and the marks tracked above — and nothing else is consulted. Confirm any figure against the cited exhibit before you use it externally.
This page carries the budget justification and the NDAA marks — nothing else. For what Boeing has actually been obligated, the ledger is at hitchintel.com/vendors; for live solicitations, hitchintel.com/opportunities. Both are member surfaces.
Cite this page
/programs/0604261N.md · MCP mcp.hitchintel.com → budget_get_program_element, budget_get_cong_marksASW Sensors & Proc — one RDT&E project inside PE 0604261N. Congressional marks are recorded on the program element, not on a project.
Project 0480 — ASW Sensors & Proc — requests $40.6M in FY2027, 83% of the $48.9M requested for program element 0604261N. Year over year it falls 2.7% against FY2026.
Project 0480 funding, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 41.4 |
| FY2026 | Enacted | 41.7 |
| FY2027 | Request | 40.6 |
| FY2028 | Outyear | 44.6 |
| FY2029 | Outyear | 45.9 |
| FY2030 | Outyear | 46.0 |
| FY2031 | Outyear | 46.9 |
2 accomplishments / planned programs
The R-2A exhibit. Activities carry the prior, current and budget year only — no five-year plan — and they are descriptive: coverage is partial and they do not always add back to the project, so count them, never total them. Opening lines only here — the full year-by-year narrative is on the project page.
Conclude FR-115 DT/OT. Initiate Tactical Open Mission Systems (TOMS) software changes to add the SSQ-145 receiver. Conduct USAB1 DDVLA sonobuoy (SSQ-145) Critical Design Review (CDR).
Read the FY2027 plan →System development and AAEMP for P-8A. Support software and hardware integration flight tests, data collection, and analysis for the acoustics program in order to develop updated fleet release software. Continue MAC-E CONOPS, tactics, techniques, and procedure training for P-8A test and continue additional MAC-E fleet introductory…
Named performers on project 0480
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.
What project 0480 buys
The Anti-Submarine Warfare (ASW) Sensors and Processing project provides tools and methods necessary to maintain maritime superiority by preventing near-peer threat submarines from completing their hostile missions or disrupting the U.S. Navy's ability to control sea lanes of communication. Project 0480 provides funding for Engineering & Manufacturing Development and follow-on Production and Deployment of new and/or improved passive and active air ASW family of systems that enable cuing, search, detection, localization, track, and attack of subsurface targets. Smaller and quieter threat submarines drive requirements for continued advancement in ASW sensor capabilities for both open-ocean and littoral environments in order to overcome challenges associated with reduced target acoustic signatures and increased background clutter caused by the water depth, high volume of shipping, and commercial radio frequency interference. Multistatic Active Coherent Enhancements (MAC-E): PE 0604261N funds the incorporation of the capability into the P-8A Acoustic Operating Flight Program (AOFP), integration of the AOFP into the P-8A Mission suite and associated training system and Post Flight Analysis (PFA) tool updates. The remainder of the integration into the P-8A platform is accomplished via PE 0605504N. UnderSea Advantage (USA): USA is the next generation of multistatics. USA incorporates an incremental improvement upon the existing system and will be accomplished via three blocks. The first block (USAB1) adds the Digital DIFAR Vertical Line Array (DDVLA) sonobuoy (SSQ-145) and software modifications to meet required capability performance metrics. USAB1 will be funded in the following manner: Early development and technology maturation efforts are funded under PE 0603254N, and PE 0604261N funds the incorporation of the capability into the P-8A AOFP and integration of the AOFP into the P-8A Mission suite. 0604261N also funds the associated training system and Post Flight Analysis (PFA) tool updates. The remainder of the integration into the P-8A platform is accomplished via PE 0605504N.
- Product Development
- Support
- Test and Evaluation
- Management Services
High Altitude ASW — one RDT&E project inside PE 0604261N. Congressional marks are recorded on the program element, not on a project.
Project 3224 — High Altitude ASW — requests $8.3M in FY2027, 17% of the $48.9M requested for program element 0604261N. Year over year it falls 23% against FY2026.
Project 3224 funding, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 10.5 |
| FY2026 | Enacted | 10.9 |
| FY2027 | Request | 8.3 |
| FY2028 | Outyear | 7.4 |
| FY2029 | Outyear | 7.5 |
| FY2030 | Outyear | 7.5 |
| FY2031 | Outyear | 7.7 |
1 accomplishment / planned program
The R-2A exhibit. Activities carry the prior, current and budget year only — no five-year plan — and they are descriptive: coverage is partial and they do not always add back to the project, so count them, never total them.
FY2027 planned work Perform ACOMMS FR-115 Fleet Introductory Training (FIT). Integrate ACOMMS capability into I3B2. Develop and prototype a digitization solution to SSQ-53 and SSQ-62 sonobuoys.
FY2026 to FY2027 change FY 2026 to FY 2027 decrease is due to ACOMMS DT and P-8A I3B1 SW Corrections of Deficiencies completion.
FY2026 plans — current year Complete P-8A I3B1 ACOMMS DT and SW Corrections of Deficiencies (COD). Implement sonobuoy link availability and assurance improvements to include prototype demonstrations.
Named performers on project 3224
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.
What project 3224 buys
Key Enablers and Sonobuoy Enhancements (KESE) provides increased P-8A operational flexibility and effectiveness throughout the kill chain. Funding addresses key enablers such as, uplink/downlink sonobuoy communications assurance, acoustic communications (ACOMMS) on Increment 3 Block 1 (I3B1) aircraft via FR-115 and P8A Increment 3 Block 2 (I3B2) aircraft and sonobuoy enhancements that include: link availability and assurance, cyber protection and the integration into the AOFP software.
- Product Development
- Support
- Test and Evaluation
- Management Services