Printed from https://fiscalreceipts.com/program/0207171F/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
F-15 EPAWSS
J-book narrative source. This does not supply the missing FY2026 TOA figure.
FY2026 Air Force Research and Development Test and Evaluation, Vol. I · www.saffm.hq.af.mil
Watch this program
Budget figures
No FY2026 R-1/P-1 request line for this program element. The FY2026 President's Budget request workbook carries no FY2026 line for it; its last workbook figure is FY2024. The PB2026 J-book detail below does carry an FY2026 row for this line, recorded as zero. A workbook blank and a documented zero are different records, and this page shows both. An absent line is not by itself an ending — PB2026 renumbered program elements at scale across the services and defense agencies, so this work may continue under a different number. No successor is linked for this line: this site's program-lineage layer holds no keyed edge pointing forward from here. That is an absence in this site's lineage layer, not a finding about the program: if the J-book narrative on this page describes a realignment, it is quoted below in the document's own words, and this note does not restate it.
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 | $13.0MR-1 TOA · PB2026 |
| FY25 | $0J-book detail · PB2026 |
| FY26 | $0J-book detail · 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Actuals | $37.7M | $174.4M | $241.5M | $202.2M | $133.4M | $46.0M | $165.7M | $100.2M | $65.6M | $13.0M |
| Enacted | $180.7M | $256.7M | $209.8M | $137.1M | $47.3M | $170.4M | $112.0M | $68.0M | $14.0M | |
| Request | $256.7M | $209.8M | $137.1M | $47.3M | $170.7M | $112.0M | $68.0M | $14.0M |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2017 book requested $256.7M for FY2017; the PB2019 book reported $241.5M as actual total obligation authority — $15.2M below the request. 241.5 − 256.7 = -15.2 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 — EPAWSS DEVELOPMENT
The legacy F-15 Tactical Electronic Warfare System (TEWS) is functionally obsolete. It uses 1970's analog technology to combat 1980s-era radar-based ground and air threats. In addition, this aging system is becoming more difficult and expensive to sustain. As a result, the Air Force is replacing TEWS with the F-15 Eagle Passive/Active Warning and Survivability System (EPAWSS). F-15 EPAWSS is an advanced digital electronic warfare system capable of detecting, identifying, locating, denying, degrading, disrupting, and defeating modern and emerging threat systems in contested airspace with dense radio-frequency (RF) background environments. F-15 EPAWSS will provide indication, type, and position of ground-based RF threats as well as the indication, type, and bearing of airborne threats with the situational awareness needed to avoid, engage, or negate the threat. It will also prevent RF threat systems from detecting or acquiring accurate targeting information to complicate and/or negate an enemy threat targeting solution. Finally, EPAWSS will counter RF and infrared threat systems at end-game via electronic countermeasures (jamming), chaff, and/or flares. This program element may include necessary civilian pay expenses required to manage, execute, and deliver weapon system capability. The use of such program funds would be in addition to the civilian pay expenses budgeted in program element 0605829F, 0605831F, 0605833F, 0605898F, 0606398F. This program is in Budget Activity 5, System Development and Demonstration (SDD) because it has passed Milestone B approval and is conducting engineering and manufacturing development tasks aimed at meeting validated requirements prior to full rate production.
Justification
Accomplishments & Planned Programs (1)
Eagle Passive/Active Warning Survivability System (EPAWSS)
Planned replacement of the existing F-15 Tactical Electronic Warfare System (TEWS). Program plans to complete development activities with FY 2024 funding.
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, Air Force | F | FY24 Actuals | $13.0M |
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 | $0 | $13.0M | $0 | $0 | $0 |
| 657108: EPAWSS DEVELOPMENT | $0 | $13.0M | $0 | $0 | $0 |
Follow the dollar
Appropriation → program element → top high-confidence awards → recipient families → congressional districts.
Follow-the-dollar covers 312 of 1,938 programs — only high-confidence budget→award links are shown. why coverage is partial? →
The diagram illustrates the cited table below — amounts shown in the diagram are transaction sums per award (no citation chips); the per-district obligations in the table cite USAspending queries.
| District | Program obligations |
|---|---|
| MO-01 | $782.5M |
Related awards
Award linkage is shown for 32 of 200 profiled companies — high- and medium-confidence USAspending matches, each row labeled; medium is the weaker evidence. why partial award coverage? →
| Recipient | PIID | Confidence |
|---|---|---|
| THE BOEING COMPANY | FA863417C2650 | high |
Contractor concentration
No concentration index is published for this line. This line's high-confidence links do not clear the floor for a published concentration index — at least 3 awards across 2 contractor families holding positive obligations, with positive net linked dollars. An index below that floor is a fact about the sample, not about the market. Whatever further links this line carries are medium-confidence, and what each medium evidence path does and does not establish is set out in the methodology. Both bases are in the downloadable warehouse.
Lobbying mentions
No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.
Oversight
GAO oversight of this program
GAO assessed F-15 Eagle Passive Active Warning Survivability System (F-15 EPAWSS) in its June 2025 Weapon Systems Annual Assessment, as an Air Force MDAP program.
“The Air Force's F-15 EPAWSS program plans to modernize the onboard F- 15 electronic warfare system used to detect and identify threat radar signals, employ countermeasures, and jam enemy radars. The program uses reconfigured hardware and software from other military aircraft to address current electronic warfare threats. The Air Force developed EPAWSS to replace the F-15 legacy electronic warfare system, but is also incorporating it into the new F-15EX model, which the Air Force is procuring to replace its F-15C/D fleet.”
GAO-25-107569, p. 71 — the assessment page in GAO’s 2025 report
Earlier editions of the same assessment: June 2024 · June 2023
GAO assessed F-15 Eagle Passive Active Warning Survivability System (F-15 EPAWSS) in its June 2024 Weapon Systems Annual Assessment, as an Air Force MDAP program.
“The Air Force's F-15 EPAWSS program plans to modernize the onboard F- 15 electronic warfare system used to detect and identify threat radar signals, employ countermeasures, and jam enemy radars. The program uses reconfigured hardware and software from other military aircraft to address current electronic warfare threats. The Air Force developed EPAWSS to replace the F-15 legacy electronic warfare system, but is also incorporating it into the new F-15EX model, which the Air Force is procuring to replace its F-15C/D fleet.”
GAO-24-106831, p. 73 — the assessment page in GAO’s 2024 report
GAO assessed F-15 Eagle Passive Active Warning Survivability System (F-15 EPAWSS ) in its June 2023 Weapon Systems Annual Assessment, as an Air Force MDAP program.
“The Air Force's F-15 EPAWSS program plans to modernize the onboard F-15 electronic warfare (EW) system used to detect and identify threat radar signals, employ countermeasures, and jam enemy radars. The program uses reconfigured hardware and software from other military aircraft to address current EW threats. The Air Force developed EPAWSS Increment 1 to replace the F-15 legacy EW system. The Air Force has yet to budget for a proposed Increment 2, which adds a new towed decoy. We assessed Increment 1.”
GAO-23-106059, p. 79 — the assessment page in GAO’s 2023 report
GAO assessed the program, not this budget line. F-15 EPAWSS is one of the lines that funds it, and GAO’s work above says nothing about this line’s own figures. Which line each GAO item attaches to is a hand-ratified crosswalk — how it was checked.
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 F-15 EPAWSS. GAO's program-level work on this line is above. 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 · J608
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2018 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J587
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 · J609
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 · J611
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 · J629
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 · J591
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 · J576
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 · J570
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 · J585
Complete workbook · unchanged saved copy. Saves as PB2025_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2017 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J590
Complete workbook · unchanged saved copy. Saves as PB2017_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.
FY2026 Air Force Research and Development Test and Evaluation, Vol. I · www.saffm.hq.af.mil
PDF page 16