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RDT&E Program Element · President's Budget PB2027

Long Range Kill Chains

PE 1203154SF·U.S. Space Force·Approp. 3620F — RDT&E·BA7 — Operational System Development
FY2027 Request
$1.39B
◆ Restart — nothing enacted in FY2026
HitchAI read

U.S. Space Force requests $1.39B in FY2027 against nothing enacted in FY2026, before stepping down 67% 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
$1,392.0M
No FY2026 funding
FY2026 Enacted
$0.0M
▼ 100% vs FY2025
FY2025 Actual
$250.2M
Prior year

Roll-up of 3 projects. Projects are the summable leaves — the PE total is their sum, never added to it.

For fiscal year 2027, the U.S. Space Force is requesting $1.39B for Long Range Kill Chains under RDT&E program element 1203154SF, 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.

4008001,2000250.2FY25ACTUAL0.0FY26ENACTED1,392.0FY27REQUEST1,398.6FY28906.7FY29452.8FY30461.8FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual250.2
FY2026Enacted0.0
FY2027Request1,392.0
FY2028Outyear1,398.6
FY2029Outyear906.7
FY2030Outyear452.8
FY2031Outyear461.8
Where it sits

Acquisition lifecycle

This program is funded in RDT&E Budget Activity 7 — Operational System Development.

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

3 projects roll up into PE 1203154SF

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.

Congressional action

Congressional marks

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

RequestPresident's Budget
$1,392.0M
House NDAA (HASC)HASC
$1,392.0M full · +$0
Senate NDAA (SASC)SASC
$1,392.0M full · +$0
House Approps (HAC-D)HAC_D
$1,392.0M 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.

Where FY2027 funding flowsShare$M
Government labs & warfare centers100%1,392.0
FY2027 request100%1,392.0
Program detail

Mission & acquisition strategy

This program continues funding for Space Data Network (SDN) in support of United States Space Force (USSF) Space Based Interceptors (SBI), the effort to develop a space-based weapon system to counter-Intercontinental Ballistic Missiles (ICBM) and Counter-hypersonic glide vehicles (HGV). The Long-Range Kill Chains PE contains activities for the Space Data Network-Space Link (SDN-SL) program. This program leverages the United States Space Force (USSF) multi-vendor Space Data Network - Backbone (SDN-B) program to enhance an integrated constellation to provide the communication layer for the Space Based Interceptors (SBI). This project is incorrectly labeled "Space Based Interceptor".

For FY27, and in coordination with Army, Air Force, USNORTHCOM, and USSPACECOM, this funding will support the adoption of a commercially derived Radio Frequency (RF) payload and prototypes for integration onto multiple planes of space vehicles, and launch of the space vehicles.

Project 676602, 671113, 676601 — Space Based Interceptor
  • Product Development
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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?Which project inside PE 1203154SF is growing fastest, and which is shrinking?How is the FY2027 request split between industry and government performers?
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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 1203154SF (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "Long Range Kill Chains (PE 1203154SF)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/1203154SF
Machine access
Markdown twin /programs/1203154SF.md · MCP mcp.hitchintel.com → budget_get_program_element, budget_get_cong_marks
FY2027 Request
$1,392.0M
No FY2026 funding
FY2026 Enacted
$0.0M
No FY2025 funding
FY2025 Actual
$0.0M
Prior year

Space Based Interceptor — one RDT&E project inside PE 1203154SF. Congressional marks are recorded on the program element, not on a project.

Project 676602 — Space Based Interceptor — requests $1.39B in FY2027, 100% of the $1.39B requested for program element 1203154SF. It is a new start — no prior-year or current-year money.

Funding trajectory

Project 676602 funding, 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. Projects carry the full five-year plan; the activities inside them stop at the budget year.

4008001,20000.0FY25ACTUAL0.0FY26ENACTED1,392.0FY27REQUEST1,398.6FY28906.7FY29452.8FY30461.8FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.0
FY2026Enacted0.0
FY2027Request1,392.0
FY2028Outyear1,398.6
FY2029Outyear906.7
FY2030Outyear452.8
FY2031Outyear461.8
Inside the project

1 accomplishment / planned program

The R-2A exhibit. Activities carry the prior, current and budget year only — no five-year plan — and they are descriptive: coverage is partial and they do not always add back to the project, so count them, never total them. Opening lines only here — the full year-by-year narrative is on the project page.

Space Data Network - Space LinkNEW
FY2025 actual$0.0M
FY2026 enacted$0.0M
FY2027 request$1,392.0M

Funds support the acceleration of the build-out of the Space Data Network to support the communication needs of the Space-Based Interceptor missile defense system.

Project 676602 — every activity in full →
Project detail

What project 676602 buys

This program continues funding for Space Data Network (SDN) in support of United States Space Force (USSF) Space Based Interceptors (SBI), the effort to develop a space-based weapon system to counter-Intercontinental Ballistic Missiles (ICBM) and Counter-hypersonic glide vehicles (HGV). In coordination with Army, Air Force, USNORTHCOM, and USSPACECOM, this funding will support the adoption of a commercially derived Radio Frequency (RF) payload and prototypes for integration onto multiple planes of space vehicles, and launch of the space vehicles. This constellation will be integrated into, and complementary, to the SDN-B. In addition to supporting the SBI program, the Space Data Network - Space Link will augment existing Space Data Network - Backbone users.

R-3 lines of work
  • Product Development
FY2027 Request
$0.0M
No FY2026 funding
FY2026 Enacted
$0.0M
▼ 100% vs FY2025
FY2025 Actual
$235.2M
Prior year

Auxiliary Payloads — one RDT&E project inside PE 1203154SF. Congressional marks are recorded on the program element, not on a project.

Project 671113 — Auxiliary Payloads — requests $0.0M in FY2027, 0.0% of the $1.39B requested for program element 1203154SF.

Funding trajectory

Project 671113 funding, 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. Projects carry the full five-year plan; the activities inside them stop at the budget year.

501001502000235.2FY25ACTUAL0.0FY26ENACTED0.0FY27REQUEST0.0FY280.0FY290.0FY300.0FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual235.2
FY2026Enacted0.0
FY2027Request0.0
FY2028Outyear0.0
FY2029Outyear0.0
FY2030Outyear0.0
FY2031Outyear0.0
Inside the project

1 accomplishment / planned program

The R-2A exhibit. Activities carry the prior, current and budget year only — no five-year plan — and they are descriptive: coverage is partial and they do not always add back to the project, so count them, never total them.

Auxiliary Payloads
FY2025 actual$235.2M
FY2026 enacted$0.0M
FY2027 request$0.0M

FY2027 planned work FY 2027 funding transitioned to Procurement, Space Force within the AUX000 budget line item in keeping with Congressional direction.

Project detail

What project 671113 buys

The Auxiliary Payloads project provides the additional communication relay space vehicles required to increase system access and capacity to the levels required to enable warfighters with the capability to rapidly move target data around the globe and execute long range kill chains. To ensure this system can transmit data to the secure cloud environment within operationally relevant timelines and enable persistent capability to directly downlink data to warfighters and weapon systems, capacity needs to be added to the network through the addition of more relay vehicles. The Department of the Air Force will leverage its existing relationship with the partnered agencies to rapidly acquire the necessary capability to meet warfighter needs. Activities may include, but are not limited to program office support, studies, technical analysis, experimentation, prototyping, and activities that may leverage commercial and international opportunities.

R-3 lines of work
  • Product Development
FY2027 Request
$0.0M
No FY2026 funding
FY2026 Enacted
$0.0M
▼ 100% vs FY2025
FY2025 Actual
$15.0M
Prior year

Golden Dome — one RDT&E project inside PE 1203154SF. Congressional marks are recorded on the program element, not on a project.

Project 676601 — Golden Dome — requests $0.0M in FY2027, 0.0% of the $1.39B requested for program element 1203154SF.

Funding trajectory

Project 676601 funding, 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. Projects carry the full five-year plan; the activities inside them stop at the budget year.

015.0FY25ACTUAL0.0FY26ENACTED0.0FY27REQUEST0.0FY280.0FY290.0FY300.0FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual15.0
FY2026Enacted0.0
FY2027Request0.0
FY2028Outyear0.0
FY2029Outyear0.0
FY2030Outyear0.0
FY2031Outyear0.0
Inside the project

1 accomplishment / planned program

The R-2A exhibit. Activities carry the prior, current and budget year only — no five-year plan — and they are descriptive: coverage is partial and they do not always add back to the project, so count them, never total them.

Office of the Golden Dome for America
FY2025 actual$15.0M
FY2026 enacted$0.0M
FY2027 request$0.0M

FY2026 to FY2027 change No funds are programmed in FY26 or FY27 for the Office of the Golden Dome for America under PE1203154SF, and this BPAC is expected to sunset.

Project detail

What project 676601 buys

This BPAC was used for the stand-up the Office of Golden Dome for America (GDA), which served as the joint integration office responsible for overseeing strategic planning, program integration, cost estimating, contracting, financial management, internal reviews and audits, and program assessments. These functions are now held under new GDA Program Element(s).

R-3 lines of work
  • Product Development