The Air Force in April asked for more than $5 billion in research, development, test and evaluation funding for the
Boeing-made F-47 in fiscal 2027, up from nearly $3.5 billion in total spending in fiscal 2026. In fiscal 2028, the Air Force expects that spending to rise to nearly $5.3 billion.
But in the three years that follow,
R&D spending for the F-47 will steadily drop until reaching under $3 billion in fiscal 2031.
F-47 Budget
| YEAR | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 |
|---|
| (In billions) | $3.45 | $5.04 | $5.25 | $4.12 | $3.29 | $2.95 |
Similarly, the
Next-Generation Adaptive Propulsion, or NGAP, program’s R&D spending is set to rise from its fiscal 2025 funding of $490 million to a requested $514 million in 2027.
That spending is projected to spike in 2028, hitting nearly $906 million, before ticking downward to $865 million in 2029. In fiscal 2030 and 2031, spending is expected to steeply decline to $303 million and $305 million.
NGAP Budget
| YEAR | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 |
|---|
| In millions | $326 | $513.70 | $905.70 | $865 | $303.30 | $304.90 |
Heather Penney, the director of studies and research at AFA’s Mitchell Institute for Aerospace Studies, said the projected funding patterns suggest that by about 2029, the Air Force will have largely finished with the most challenging parts of the R&D process on both programs and could be shifting into the engineering and manufacturing development phase.