Printed from https://fiscalreceipts.com/program/0604261N/ — data as of July 28, 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 awards are reported on a rolling basis and the fiscal year does not close until September 30. why partial FY2026 data? →
- FY24
- $60.1M
- FY25
- $53.6M
- FY26
- $52.5M
● 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 reports $60.1M actually spent — $8.54M above the request.
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 — Congressional Adds
Congressional Add. Implement sonobuoy modernization.
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.
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)
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)
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| 9999: Congressional Adds | $0 | $10.1M | $0 | $0 | $0 |
| 3224: High Altitude ASW | $140.4M | $7.38M | $10.9M | $10.9M | $10.9M |
| 0480: ASW Sensors & Proc | $635.0M | $42.6M | $42.7M | $41.7M | $41.7M |
| Program Element | $775.5M | $60.1M | $53.6M | $52.5M | $52.5M |
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 17 of 1741 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high 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.
No research dossier for this program — dossiers cover 50 of 1741 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →