Printed from https://fiscalreceipts.com/program/0604010F/ — data as of July 28, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Next Generation Adaptive Propulsion
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
- $573.8M
- FY25
- $507.3M
- FY26
- $330.3M
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY24 | FY25 | FY26 |
|---|---|---|---|
| Actuals | $573.8M | ||
| Enacted | – | $507.3M | |
| Request | – | – | $330.3M |
blank = series not published for this year; – = absent from that edition.
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 — Next Generation Adaptive Propulsion (NGAP)
The Next Generation Adaptive Propulsion (NGAP) program builds upon advanced materials, technologies and manufacturing processes matured under the Adaptive Engine Transition Program (which ended in FY24) to enhance adaptive propulsion system performance and size scalability key to enabling future aircraft capabilities. Embedded adaptive propulsion systems combine the fuel efficiency of high-bypass turbofan engines used by commercial airlines with the performance demanded of military fighter engines with augmenters. Increased fuel efficiency reduces energy demand and aerial tanker dependency while increasing platform range and or time on station. During peacetime, these benefits translate to reduced aerial tanker dependency during exercises and a choice between increased aircrew readiness or cost savings due to the less fuel needed. NGAP prototyping will validate the performance and maturity of its enabling advanced technologies, platform agnostic engine architectures and designs, and manufacturing processes through prototype testing. NGAP will also drive digital transformation of the propulsion industrial base to reduce future integration risks while shortening development timelines. Prior to FY 2024, the NGAP program was reported in PE 0604004F, Advanced Engine Development, Project 643608, Advanced Engine Development. 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, or 0605898F. In FY 2024 $5.669 million was expended for civilian pay expenses in this program element, and in FY 2025 $7.401 million is forecasted for civilian pay expenses in this program element. This effort is in Budget Activity 4, Advanced Component Development and Prototypes (ACD&P), because efforts are necessary to evaluate integrated technologies, representative modes or prototype systems in a high fidelity and realistic operating environment.
Justification
Accomplishments & Planned Programs (1)
Next Generational Adaptive Propulsion (NGAP)
The NGAP program is designing multiple adaptive engine prototypes and will complete component rig assessments; fabricate, assemble, test and evaluate prototype(s); characterize materials, and inform digital improvements to model-based manufacturing processes. Prototype engine assessments at sea-level, altitude, and across multiple power settings will provide data to quantify the capabilities, validate engineering models as well as the maturity of new component technologies, and reduce risk in areas such as reliability and supportability. The program will also demonstrate the scalability of an embedded adaptive propulsion system with the versatility for an augmented future fighter or non-augmented for other mission aircraft operating across various mission threads.
Budget Line Items(workbook-cited)
Exhibit R-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Research, Development, Test and Evaluation, Air Force | F | FY24 Actuals | $573.8M |
| Research, Development, Test and Evaluation, Air Force | F | FY25 Enacted | $507.3M |
| Research, Development, Test and Evaluation, Air Force | F | FY25 Total | $507.3M |
| Research, Development, Test and Evaluation, Air Force | F | FY26 Disc. Request | $330.3M |
| Research, Development, Test and Evaluation, Air Force | F | FY26 Total | $330.3M |
Budget Details(R-2/P-40 facts)
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| Program Element | $0 | $573.8M | $507.3M | $330.3M | $330.3M |
| 640864: Next Generation Adaptive Propulsion (NGAP) | $0 | $573.8M | $507.3M | $330.3M | $330.3M |
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? →