Printed from https://fiscalreceipts.com/program/0604261N/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Acoustic Search Sensors
Budget figures
FY2026 award data is a partial year — USAspending reports awards on a rolling basis, and this corpus runs through 2026-09-04. why partial FY2026 data? →
Budget trajectory
| Fiscal year | Amount |
|---|---|
| FY24 | $60.1M |
| FY25 | $53.6M |
| FY26 | $52.5M |
All series figures: R-1 TOA · PB2026
Decade view
P-1/R-1 workbook TOA basis, shown compact in $B/$M (the workbook records USD thousands); each figure cites its own President's Budget edition
The vertical scale does not start at zero: the baseline sits just below this program’s smallest year, so a low point on this line is not a small amount. Read the shape for direction and the grid below for the figures.
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY15 | FY16 | FY17 | FY18 | FY19 | FY20 | FY21 | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Actuals | $24.4M | $30.6M | $28.9M | $36.3M | $41.4M | $45.8M | $45.7M | $47.5M | $47.7M | $60.1M | ||
| Enacted | $31.2M | $34.5M | $37.2M | $42.5M | $47.0M | $47.2M | $49.1M | $50.2M | $51.5M | $53.6M | ||
| Request | $34.5M | $37.2M | $42.5M | $47.0M | $47.2M | $46.1M | $50.2M | $51.5M | $53.6M | $52.5M |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2024 book requested $51.5M for FY2024; the PB2026 book reported $60.1M as actual total obligation authority — $8.54M above the request. 60.075 − 51.531 = 8.544 USD millions — the compact figures above are rounded for reading.
Program lineage
No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.
Description
Mission — Acoustic Search Sensors
U.S. Navy Air Anti-Submarine Warfare (ASW) mission is critical to achieve maritime supremacy against peer threats. RDT&E funds for engineering development and operational test and evaluation of acoustic search sensors/systems and complementary equipment for ASW aircraft. JUSTIFICATION FOR BUDGET ACTIVITY: This program is funded under SYSTEM DEVELOPMENT AND DEMONSTRATION because it includes those projects that have passed Milestone B approval and are conducting engineering and manufacturing development tasks aimed at meeting validated requirements prior to full-rate production decision.
Mission — ASW Sensors & Proc
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 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. Project 0480 also provides funding for the Advanced Product Build (APB) program which integrates Office of Naval Research (ONR) Future Naval Capabilities (FNCs), Small Business Innovation Research (SBIR), and University Affiliated Research Center (UARC) products and mature technologies into the processing baseline. Efforts incorporate clutter reduction techniques, automation, improved displays and controls, and improved communication links to enable reduced operator workload, increased target detection opportunities, and improved classification techniques. Sonobuoy test articles in FY24-FY30 support software and hardware integration flights tests, data collection, and analysis for the acoustic program in order to develop updated fleet release software. APB also includes an Air ASW Engineering Measurement Program (AAEMP) that collects ASW operational performance data to identify areas where improvements can be incorporated across Air ASW platforms. Finally, project funding provides initial and interim training of new capabilities to test and fleet aircrew.
Mission — High Altitude ASW
High Altitude ASW project provides Key Enablers/Sonobuoy Enhancements (KESE) that increase P-8A operational flexibility and effectiveness throughout the kill chain. Funding addresses key enablers such as, uplink/downlink sonobuoy communications assurance, AELS/over-the-horizon (OTH) communications, acoustic communications (ACOMMS) and sonobuoy enhancements that include: digitization, cyber protection and the integration into the AOFP software.
Mission — Congressional Adds
Congressional Add. Implement sonobuoy modernization.
Justification
No accomplishments or planned-program narratives in this line's J-book detail — some exhibits carry figures without per-project prose.
Budget line items(workbook-cited)
P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.
Exhibit R-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Research, Development, Test and Evaluation, Navy | N | FY24 Actuals | $60.1M |
| Research, Development, Test and Evaluation, Navy | N | FY25 Enacted | $53.6M |
| Research, Development, Test and Evaluation, Navy | N | FY25 Total | $53.6M |
| Research, Development, Test and Evaluation, Navy | N | FY26 Disc. Request | $52.5M |
| Research, Development, Test and Evaluation, Navy | N | FY26 Total | $52.5M |
Budget Details(R-2/P-40 facts)
J-book detail basis (R-2/P-40, USD millions) · PB2026 — a different accounting basis from the P-1/R-1 workbook TOA above; where the two disagree, the reconciliation strip under Budget figures shows both.
Wider than this screen — swipe the table sideways for the remaining fiscal-year columns.
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| Program Element | $775.5M | $60.1M | $53.6M | $52.5M | $52.5M |
| 0480: ASW Sensors & Proc | $635.0M | $42.6M | $42.7M | $41.7M | $41.7M |
| 3224: High Altitude ASW | $140.4M | $7.38M | $10.9M | $10.9M | $10.9M |
| 9999: Congressional Adds | $0 | $10.1M | $0 | $0 | $0 |
Follow the dollar
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 312 of 1,938 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high or medium confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying mentions
No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.
Oversight
Department-level designation (not specific to this program)
GAO lists 5 high-risk areas for DOD as a whole. That designation covers the department, not Acoustic Search Sensors. No program-specific GAO finding for this line is in the ingested data. See the DOD oversight record.
Program dossier
No research dossier for this program — dossiers cover 50 of 1,938 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →
Primary sources
Open any budget figure for its exact receipt. Verified line items lead with the highlighted government PDF; original spreadsheets download with their budget edition and exhibit in the filename.
Budget totals · TOA sources
FY2026 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J361
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2017 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J311
Complete workbook · unchanged saved copy. Saves as PB2017_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2018 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J341
Complete workbook · unchanged saved copy. Saves as PB2018_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2019 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J352
Complete workbook · unchanged saved copy. Saves as PB2019_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2020 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J364
Complete workbook · unchanged saved copy. Saves as PB2020_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2021 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J376
Complete workbook · unchanged saved copy. Saves as PB2021_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2022 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J350
Complete workbook · unchanged saved copy. Saves as PB2022_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2023 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J341
Complete workbook · unchanged saved copy. Saves as PB2023_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2024 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J340
Complete workbook · unchanged saved copy. Saves as PB2024_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2025 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J343
Complete workbook · unchanged saved copy. Saves as PB2025_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
Detailed budget justification
The related TOA spreadsheets above use a different accounting basis from R-2/P-40 detail. Their amounts are not assumed to match these detailed sources.
RDTEN BA1-3 Book · www.secnav.navy.mil