# HACM Development

**R-2A activity** of project 644183 — Hypersonic Attack Cruise Missile (HACM)  
**Program element:** 0604183F — Hypersonic Attack Cruise Missile (HACM)  
**Component:** U.S. Air Force · **Budget Activity:** 4  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604183F/644183/a0  
**Parent:** https://hitchintel.com/programs/0604183F

## Summary

This activity requests $717.2M in FY2027, 89% of project 644183, down 6.1% 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.** Purchase hardware and validate the HACM design to continue ground and flight test activities. Continue to purchase long-lead flight test asset hardware and make investment in manufacturing readiness and operational suitability improvements.

**FY2026 to FY2027 change.** The decrease of $46.879 million is due to the program closing critical design activities.

## Before the request year

**FY2026 plans — current year.** This effort continued model-based system engineering activities in the Digital Engineering (DE) ecosystem. Continued efforts included additional design verification testing, operational suitability improvements, prototype manufacturing, systems integration, subsystem qualification, manufacturing capacity investment, and integration on the F-15E and F/A-18F platforms. Continued work on product improvement for integration into design, development, and production.

## Funding

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 426.0 |
| FY2026 | Enacted | 764.1 |
| FY2027 | Request | 717.2 |

> 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.

## Other activities in project 644183

- [Integration, Qualification, and Test](https://hitchintel.com/programs/0604183F/644183/a1) — FY2027 88.9

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibit R-2A, PE 0604183F project 644183 (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.*