RDT&E Program Element · President's Budget PB2027

Prototyping

PE 0604336F·U.S. Air Force·Approp. 3600 — RDT&E·BA4 — Advanced Component Development & Prototypes
FY2027 Request
$91.6M
◆ Scaling +115%
HitchAI read

U.S. Air Force funding ramps 115% to a $91.6M request in FY2027, sustained across the five-year plan. In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators funded it in full. NNSA/SNL leads the industry work.

FY2027 Request
$91.6M
▲ 115% vs FY2026
FY2026 Enacted
$42.5M
▲ 13% vs FY2025
FY2025 Actual
$37.7M
Prior year

For fiscal year 2027, the U.S. Air Force is requesting $91.6M for Prototyping under RDT&E program element 0604336F, up 115% over FY2026.

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.

255075100037.7FY25ACTUAL42.5FY26ENACTED91.6FY27REQUEST71.4FY2894.4FY2996.2FY3098.2FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual37.7
FY2026Enacted42.5
FY2027Request91.6
FY2028Outyear71.4
FY2029Outyear94.4
FY2030Outyear96.2
FY2031Outyear98.2
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 0604336F

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. This PE moves 115% overall, which can hide much larger swings below.

Project 643360

Prototyping

$91.6MFY2027 request ▲ 115%
FY2025 actual$37.7M
FY2026 enacted$42.5M
FY2027 request$91.6M
Product DevelopmentSupportTest and EvaluationManagement Services

The Air-delivered Nuclear Delivery System project addresses a United States Strategic Command capability gap resulting from a Congressionally-directed study which led to endorsement of the Department of War's Deputy's Management Action Group and initiation of this project. The Department of Air Force is working with the Department of Energy's National Nuclear Security Administration and its National Laboratories to quickly develop and demonstrate a prototype air-delivered system based on fielded technologies to close this gap in the near term. The project requires close Department of Air Force and Department of Energy interagency coordination to produce a prototype that will enable rapid transition to a fielded system. Early development will include modeling and simulation analysis of several Nuclear Explosive Package options to refine the proposed Nuclear Explosive Package. The Air-Delivered Nuclear Delivery System must meet nuclear weapon's environmental standards from storage to weapon detonation, while meeting reliability and target defeat requirements. The Air Force, via cross-agency partnerships, will provide test resources to include ground test facilities, F-15E test aircraft, and B-2 test aircraft, and will work with the aircraft Program Offices to identify aircraft integration requirements including any potential Operational Flight Program software and hardware changes. The Air Force will procure and provide the National Nuclear Security Administration with the components necessary to produce Prototype Weapon Assemblies for capturing environments and demonstrating functionality in high-fidelity ground and air tests. Ground tests may include static ejection, vibration and thermal, linear acceleration subscale tests, Davis Gun tests, sled tests, and other environments testing. Flight tests will be performed by Air Force F-15E developmental flight test aircraft, with final prototype demonstrations planned to fly on B-2 aircraft. Considerations in the development of the prototype include nuclear surety, maintenance and logistics, refinement of requirements (Military Characteristics), and producibility.

Accomplishments / planned programs (R-2A) — prior, current and budget year only
FY2025 actual$37.7M
FY2026 enacted$42.5M
FY2027 request$91.6M

- Continue aircraft and guided tail kit integration required for flight testing. - Continue F-15 flight-testing activities, Seek Eagle approval, and initiate flight test events. - Complete Davis Gun scaled testing. - Complete modeling and simulation analysis of Nuclear Explosive Package design options. - Complete component design and…

Read the FY2027 plan →
Congressional action

Congressional marks

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

RequestPresident's Budget
$91.6M
House NDAA (HASC)HASC
$91.6M full · +$0
Senate NDAA (SASC)SASC
$91.6M full · +$0
House Approps (HAC-D)HAC_D
$91.6M full · +$0
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.

NNSA/SNL
$33.3M · 36%
Design and Build (SNL)
NNSA/LANL
$28.8M · 31%
Design and Build (LANL)
Where FY2027 funding flowsShare$M
Industry primes68%62.0
Government labs & warfare centers10%9.4
Other / unspecified22%20.1
FY2027 request100%91.6
See NNSA/SNL's full federal contract ledger members
Program detail

Mission & acquisition strategy

The Air-delivered Nuclear Delivery System project addresses a United States Strategic Command capability gap resulting from a Congressionally-directed study which led to endorsement of the Department of War's Deputy's Management Action Group and initiation of this project. The Department of Air Force is working with the Department of Energy's National Nuclear Security Administration and its National Laboratories to quickly develop and demonstrate a prototype air-delivered system based on fielded technologies to close this gap in the near term.

The Air Force Research Laboratory at Kirtland Air Force Base, New Mexico will be managing and executing the Air-Delivered Nuclear Delivery System project through a government-led team and in collaboration with the Department of Energy's National Nuclear Security Administration and its National Laboratories. Development of the prototype includes contractors outside the traditional National Nuclear Security Administration production agencies to produce developmental hardware and to avoid impacting nuclear warhead Programs of Record. When completed, this project will transition into Development Engineering with the Air Force Nuclear Weapons Center and the National Nuclear Security Administration.

Project 643360 — Prototyping
  • 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 the FY2027 NDAA committees do to this request?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 NNSA/SNL 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 0604336F (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "Prototyping (PE 0604336F)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/0604336F
Machine access
Markdown twin /programs/0604336F.md · MCP mcp.hitchintel.combudget_get_program_element, budget_get_cong_marks