RDT&E Program Element · President's Budget PB2027

Weaponeering Code Sustainment

PE 0608500D8Z·Defense-Wide·Approp. 0400 — RDT&E·BA8 — Budget Activity 8
FY2027 Request
$23.1M
Defense-Wide · RDT&E
◆ New start in FY2027 — no prior-year funding
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Defense-Wide requests $23.1M in FY2027 against nothing enacted in FY2026 — the program's peak, 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.

FY2027 Request
$23.1M
No FY2026 funding
FY2026 Enacted
$0.0M
No FY2025 funding
FY2025 Actual
$0.0M
Prior year

For fiscal year 2027, Defense-Wide agencies are requesting $23.1M for Weaponeering Code Sustainment under RDT&E program element 0608500D8Z, against nothing enacted in 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.

00.0FY25ACTUAL0.0FY26ENACTED23.1FY27REQUEST23.1FY2823.1FY2923.1FY3023.1FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.0
FY2026Enacted0.0
FY2027Request23.1
FY2028Outyear23.1
FY2029Outyear23.1
FY2030Outyear23.1
FY2031Outyear23.1
Where it sits

Acquisition lifecycle

This program is funded in RDT&E Budget Activity 8 — Budget Activity 8.

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

1 project rolls up into PE 0608500D8Z

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 671

Weaponeering Code Sustainment

$23.1MFY2027 request NEW
FY2025 actual$0.0M
FY2026 enacted$0.0M
FY2027 request$23.1M

The Department of War (DoW) relies on a multitude of mission-critical modeling and simulation (M&S) codes and tools that are utilized across the munitions, platforms and warfighter communities. This program’s mission is for the sustainment of these M&S codes to keep them functioning at appropriate levels to support key DoW mission spaces. The M&S Codes have been previously developed by OUSW and DoW programs, and are continuously and incrementally improved and enhanced adding new capabilities that support evolving mission criteria. The enhancements and improvements are commonly distributed in new releases and versions of the software, and are increasingly more adaptable to digital engineering frameworks that enable Machine Learning (ML) and automated workflows. The M&S codes enable detailed design and performance assessments, augment physical testing to improve system performance and reduce costs, and support weapons employment and mission planning. Sustainment of the M&S codes includes several activities to ensure they are functioning and executing at efficient and optimal levels. Compatibility testing of new releases to assess proper functionality on DoW systems, including within the DoW High Performance Computing environment. Installation and configuration support for compatibility with DoW system requirements. Debugging and troubleshooting user problems, and direct support from the software developers for complex use cases. Developing and updating training materials for efficient implementation with users. Thorough review of the source code for new releases to ensure any sensitive content is stripped, while remaining intelligible.

Accomplishments / planned programs (R-2A) — prior, current and budget year only
FY2025 actual$0.0M
FY2026 enacted
FY2027 request$23.1M

- Release of new versions of DOE developed computational physics codes and associated databases to DoW users. - Sustainment of Engineering tools such as Fast Air Target Encounter Penetration (FATEPEN) used to simulate weapons effects on high value targets in challenging environments. - Implementation and configuration of computational…

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
$23.1M
House NDAA (HASC)HASC
$23.1M full · +$0
Senate NDAA (SASC)SASC
$23.1M full · +$0
House Approps (HAC-D)HAC_D
$23.1M full · +$0
unresolved as of 2026-07-27. These are FY2027 authorization marks (NDAA); appropriations and the conference agreement may differ.
Program detail

Mission & acquisition strategy

The Department of War (DoW) relies on a multitude of mission-critical modeling and simulation (M&S) codes and tools that are utilized across the munitions, platforms and warfighter communities. This program’s mission is for the sustainment of these M&S codes to keep them functioning at appropriate levels to support key DoW mission spaces. M&S codes have been previously developed by OUSW(R&E) and DoW programs and are continuously and incrementally improved and enhanced adding new capabilities that support evolving mission criteria.

Project 671 — Weaponeering Code Sustainment
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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?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 Office of the Secretary of Defense RDT&E Budget Justification · Exhibits R-2 / R-3 · PE 0608500D8Z (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "Weaponeering Code Sustainment (PE 0608500D8Z)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/0608500D8Z
Machine access
Markdown twin /programs/0608500D8Z.md · MCP mcp.hitchintel.combudget_get_program_element, budget_get_cong_marks