# Next Generational Adaptive Propulsion (NGAP)

**R-2A activity** of project 640864 — Next Generation Adaptive Propulsion (NGAP)  
**Program element:** 0604010F — Next Generation Adaptive Propulsion (NGAP)  
**Component:** U.S. Air Force · **Budget Activity:** 4  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604010F/640864/a0  
**Parent:** https://hitchintel.com/programs/0604010F

## Summary

This activity requests $513.7M in FY2027, 100% of project 640864, up 58% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

## What the FY2027 request buys

**FY2027 planned work.** - Complete purchasing materials and component rig testing. - Continue fabricating components and finalize assembly planning. - Initiate prototype engine assembly and instrumentation.

**FY2026 to FY2027 change.** Funding increased by $187.671 million to maintain competitive prototyping.

## Before the request year

**FY2026 plans — current year.** - Continue purchasing materials, fabricating components, performing component rig testing, and planning assembly of prototypes to include integration of instrumentation for prototype testing - Conduct Assembly Readiness Reviews assessing each contractor's preparedness to proceed with build and assess test risk of their prototype engine.

## Funding

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 489.7 |
| FY2026 | Enacted | 326.0 |
| FY2027 | Request | 513.7 |

> Prior, current and budget year only — an R-2A activity carries no five-year plan. It sums exactly into its project in the request year and not necessarily in any other.

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibit R-2A, PE 0604010F project 640864 (PB PB2027). Narrative is the government's own text.
- **No marks, no contractors at this grain** — congressional marks land on the program element and R-3 performers on the project.
- **MCP:** `mcp.hitchintel.com` — `budget_get_activity`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*