RDT&E Program Element · President's Budget PB2027

Hypersonics Prototyping

PE 0604033F·U.S. Air Force·Approp. 3600 — RDT&E·BA4 — Advanced Component Development & Prototypes
FY2027 Request
$345.8M
⚑ Contested — House approps cuts 24%
◆ New start in FY2027 — no prior-year funding
HitchAI read

U.S. Air Force requests $345.8M in FY2027 against nothing enacted in FY2026, with nothing planned by FY2031. In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators cut 24% (to $261.7M).

FY2027 Request
$345.8M
No FY2026 funding
House approps mark
$261.7M
▼ $84.0M vs request
FY2026 Enacted
$0.0M
In law

For fiscal year 2027, the U.S. Air Force is requesting $345.8M for Hypersonics Prototyping under RDT&E program element 0604033F, against nothing enacted in FY2026. In the FY2027 defense authorization, House approps moved to cut it to $261.7M.

Funding trajectory

Funding profile, FY2025–FY2031

Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure.

20040060000.0FY25ACTUAL0.0FY26ENACTED345.8FY27REQUEST548.6FY28620.5FY29242.6FY300.0FY31HOUSE APPROPS
Actual Enacted Request Outyear (FYDP) House approps mark
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.0
FY2026Enacted0.0
FY2027Request345.8
FY2028Outyear548.6
FY2029Outyear620.5
FY2030Outyear242.6
FY2031Outyear0.0
Where it sits

Acquisition lifecycle

This program is funded in RDT&E Budget Activity 4 — Advanced Component Development & Prototypes.

Complete
Research
BA 1–2
Complete
Advanced Technology
BA 3
Current
Prototyping
BA 4
Later
Development & Fielding
BA 5–7
Inside the program element

1 project rolls up into PE 0604033F

Projects are the summable leaves — the PE total is their sum, never added to it. Program elements and projects carry the full five-year plan; activities stop at the budget year.

Project 643882

Air-Launched Rapid Response Weapon (ARRW)

$345.8MFY2027 request NEW
FY2025 actual$0.0M
FY2026 enacted$0.0M
FY2027 request$345.8M
Product DevelopmentSupportTest and EvaluationManagement Services

The Air-Launched Rapid Response Weapon (ARRW) project integrated Air Force and DARPA enabled system technologies enabled this concept to be fielded as a long range prompt strike capability. ARRW designed, developed, manufactured, and tested a number of prototype vehicles to inform decisions concerning ARRW acquisition and production. Future hypersonics development will incubate, mature, and integrate new technologies, processes, and resources for the development and demonstration of hypersonic technology including, but not limited to, infrastructure advancements, digital engineering, open systems architecture, modeling and simulation, analytics, and high performance computing environments. Additionally, future developments will look to mature and integrate existing technologies to improve performance and capability of hypersonic weapons. Investing in hypersonics development will enable the collection of valuable data, building of capacity and capability, allowing hypersonic programs to leverage and build upon each other, and project the overall technology forward. In FY 2022, PE 0101101F, Project ARRW00/AGM-183A Air-Launched Rapid Response Weapon, efforts were transferred to PE 0604033F, Hypersonics Prototyping, Project 643882, Air-Launched Rapid Response Weapon, in order to mitigate the testing shortfall (PE 0604033F remains RDT&E only). In FY 2026, ARRW Procurement was added to PE 0101101F. The FY 2026 spend plan amount for RDT&E includes 0 thousand of discretionary and 133,334 thousand of mandatory (reconciliation) for a total of 133,334 thousand. This program element included all necessary expenses required to manage, execute, and deliver weapon system capability. The use of such programs funds would be in addition to the civilian pay expenses budgeted in program elements 0605829F, 0605831F, 0605833F, and 0605898F. The Air-Launched Ballistic Missile (ALBM) project integrates Air Force and other system technologies to develop, design, test, manufacture, and field an air-launched, long-range strike capability that complements existing hypersonic weapons. ALBM will mature existing hypersonic weapon technologies to rapidly test, which will inform future production decisions early in the acquisition lifecycle.

Accomplishments / planned programs (R-2A) — prior, current and budget year only
Air Launched Rapid Response Weapon (ARRW) Increment (INC) 2NEW
FY2025 actual$0.0M
FY2026 enacted$0.0M
FY2027 request$296.3M

FY2027 planned work FY27 plans to begin INC 2 technology efforts such as but not limited to integrating pre-planned product improvements, design, trade studies, hardware upgrades, facilitization, affordability initiatives, and testing.

FY2026 to FY2027 change FY27 $296.262M funded to continue INC 2 tech efforts, facilitation, and affordability.

FY2026 plans — current year No FY26 RDT&E Discretionary Funding

ALBM ProgramNEW
FY2025 actual
FY2026 enacted$0.0M
FY2027 request$49.5M

FY2027 planned work Standup new program office and begin ALBM design activities leading to a critical design review. Begin development of test assets.

FY2026 to FY2027 change Standup new program office and begin ALBM design activities leading to a critical design review. Begin development of test assets.

FY2026 plans — current year No FY26 dollars

Congressional action

The request is contested

Committee marks on the FY2027 request. Adds and cuts are reconciled in conference before they become law.

RequestPresident's Budget
$345.8M
House NDAA (HASC)HASC
$345.8M full · +$0
Senate NDAA (SASC)SASC
$345.8M full · +$0
House Approps (HAC-D)HAC_D
$261.7M −$84.0M · −24%
▲ $84.0M chamber gap — unresolved as of 2026-07-27. These are FY2027 authorization marks (NDAA); appropriations and the conference agreement may differ.
Who's building it

Where the FY2027 request goes

Performers named in the R-3 exhibit, resolved into industry, government-lab, and unspecified shares. Budget-justification contract funding, not obligations.

Where FY2027 funding flowsShare$M
Other / unspecified100%345.8
FY2027 request100%345.8
Program detail

Mission & acquisition strategy

The Hypersonics Prototyping (Air-launched Rapid Response Weapon) program enables development, integration and demonstration of hypersonic technologies and other key technologies in an operational or operational-like environment to capitalize on successful hypersonic research and development efforts with high warfighter priority. Integration and demonstration of developed technologies and prototype technologies into a hypersonic system allows leadership to make informed strategy and resource decisions for future programs based on the results of such hypersonic demonstrations.

FY27 plans to continue post-MTA technology efforts such as but not limited to integrating pre-planned product improvements, design, trade studies, hardware upgrades, new hardware to increase capability and testing. Acquisition Decision Memorandum (signed 5 Mar 2026) approved Hypersonic Air Launched Rapid Response Weapon (ARRW) Post- Middle tier Acquisition (MTA) Technology Efforts to continue Hypersonic boost glide technology developing and prototyping. Acquisition Decision Memorandum (signed 18 Mar 2025) approved Hypersonic Air Launched Rapid Response Weapon (ARRW) Post- Middle tier Acquisition (MTA) Technology Efforts to continue Hypersonic boost glide technology developing and prototyping.

Project 643882 — Air-Launched Rapid Response Weapon (ARRW)
  • Product Development
  • Support
  • Test and Evaluation
  • Management Services
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Answers are generated from the figures on this page — the FY2027 justification exhibits and the marks tracked above — and nothing else is consulted. Confirm any figure against the cited exhibit before you use it externally.

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Questions this page can answer
How does the FY2027 request compare with FY2026, and what does the five-year plan show?What did House approps do to this request, and what is still unresolved?How is the FY2027 request split between industry and government performers?In plain terms, what is this program element for and how is it being acquired?

This page carries the budget justification and the NDAA marks — nothing else. For what a contractor has actually been obligated, the ledger is at hitchintel.com/vendors; for live solicitations, hitchintel.com/opportunities. Both are member surfaces.

Provenance

Cite this page

Sources
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibits R-2 / R-3 · PE 0604033F (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "Hypersonics Prototyping (PE 0604033F)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/0604033F
Machine access
Markdown twin /programs/0604033F.md · MCP mcp.hitchintel.combudget_get_program_element, budget_get_cong_marks