# Hypersonic Attack Cruise Missile (HACM) — Program Element 0604183F

**Program element:** 0604183F  
**Component:** U.S. Air Force  
**Appropriation:** 3600 — RDT&E, Air Force  
**Budget Activity:** 4 — Advanced Component Development & Prototypes  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604183F

## Summary

U.S. Air Force requests $806.1M in FY2027 (down from a FY2026 peak), before stepping down 81% across the five-year plan. In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators cut 8.0% (to $741.6M). RTX / Raytheon leads the industry work.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 452.8 |
| FY2026 | Enacted | 828.1 |
| FY2027 | Request | 806.1 |
| FY2028 | Outyear | 514.0 |
| FY2029 | Outyear | 195.5 |
| FY2030 | Outyear | 171.1 |
| FY2031 | Outyear | 155.0 |

> Estimate types are not summed — the profile mixes actuals, enacted law, the request, and outyear projections.

## Congressional marks (FY2027)

| Stage | Marked ($M) | Change ($M) |
|---|---|---|
| Request | 806.1 | — |
| House NDAA (HASC) | 806.1 | +0.0 |
| Senate NDAA (SASC) | 806.1 | +0.0 |
| House Approps (HAC-D) | 741.6 | −64.5 |

> FY2027 NDAA authorization marks, as of 2026-07-27. Not appropriations or final law.

## Projects (1)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| 644183 | Hypersonic Attack Cruise Missile (HACM) | 452.8 | 828.1 | 806.1 | −3% |

> Projects are the summable leaves: the program element total is their sum, never added to it.

### Project 644183 — Hypersonic Attack Cruise Missile (HACM)

Hypersonic Attack Cruise Missile (HACM) is an air-launched, air breathing hypersonic weapon capable of integration on fighters and bombers that enables the U.S. to hold fixed, high value, time-sensitive targets at risk in contested environments from standoff distances. The program leverages investment from the Southern Cross Integrated Flight Research Experiment (SCIFiRE), a bi-lateral U.S./Australian air-breathing hypersonic cruise missile prototyping effort. The HACM program will integrate advanced technologies and mature designs into an All-Up Round (AUR) prototype that will demonstrate a field-able long range prompt strike capability. HACM will design, develop, manufacture, and test prototype vehicles to inform future HACM acquisition decisions. HACM will mature hypersonic technologies and processes by leveraging subsystem integration, infrastructure and testing advancements, Digital Engineering (DE), Weapons Open Systems Architecture (WOSA), Modeling and Simulation (M&S) to quickly integrate future capabilities at reduced cost. Implements Digital Acquisition tenants of Open, Agile, and Digital; builds and establishes industrial base innovation around the program's enterprise for modularity and adaptability for the life cycle of the weapons system. Leverages common component development, in collaboration with other weapon systems, to reduce redundant costs between systems with similar subsystems requirements. Invests in analytical, data management, digital environments, networks, facilities, and security infrastructure upgrades supporting development of this program's capabilities, while leveraging Department of War (DoW) and Department of the Air Force (DAF) enterprise Information Technology (IT) solutions. Expands program office staff, facilities, and security infrastructure to support the required classification levels for this program's activities. Engages with DoW, DAF, and industry stakeholders to refine threat analysis, refine inventory requirements, and plan upgrade requirements. Capitalizes on and incorporates successful laboratory research and development efforts applicable to this program's capability.

**Named R-3 performers** (share of this project's FY2027 R-3 total, so they need not reach 100%)**:** RTX / Raytheon (412.0, 51%).

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| HACM Development | 426.0 | 764.1 | 717.2 |
| Integration, Qualification, and Test | 26.8 | 64.0 | 88.9 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

## Where the FY2027 request goes

| Category | Share | $M |
|---|---|---|
| Industry primes | 51% | 412.0 |
| Other / unspecified | 49% | 394.1 |

**Top named industry performers:** RTX / Raytheon ($412.0M, 51%).

> R-3 exhibit contract funding, not USAspending obligations.

## Mission & acquisition strategy

Hypersonic Attack Cruise Missile (HACM) is an air-launched, air breathing hypersonic weapon capable of integration on fighters and bombers that enables the U.S. to hold fixed, high value, time-sensitive targets at risk in contested environments from standoff distances. The program leverages investment from the Southern Cross Integrated Flight Research Experiment (SCIFiRE), a bi-lateral U.S./Australian air-breathing hypersonic cruise missile prototyping effort. The HACM program will integrate advanced technologies and mature designs into an All-Up Round (AUR) prototype that will demonstrate a field-able long range prompt strike capability.

The program leverages the SCIFiRE investment, a bi-lateral U.S. / Australia effort which matures air-breathing cruise missile technology. Through SCIFiRE, HACM leverages efforts from the DARPA Air Force Hypersonic Air-breathing Weapon Concept (HAWC). The HACM prototype will demonstrate a weapon concept to be fielded as a long range prompt strike capability. Includes scope to develop/test/demonstrate prototype weapon through Digital Model-Based System Engineering (MBSE) process, implementing WOSA and Agile Software Development. The program will prioritize integration on the F-15E platform to meet US warfighter needs.

## Related program elements

- [0604932F — Long Range Standoff Weapon](https://hitchintel.com/programs/0604932F) (Air Force)
- [0204460M — Ground/Air Task Oriented Radar (G/ATOR)](https://hitchintel.com/programs/0204460M) (Navy)
- [0605518N — Conventional Prompt Strike (CPS)](https://hitchintel.com/programs/0605518N) (Navy)
- [1207440SF — Autonomous Tactical Fabric](https://hitchintel.com/programs/1207440SF) (Space Force)

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-3, PE 0604183F (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0604183F")`.

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