Project 643731
$1,068.5MFY2027 request ▲ 43%Transport
FY2025 actual$1,193.5M
FY2026 enacted$747.4M
FY2027 request$1,068.5M
Product Development
FY2027 Request
$1,246.3M
▲ 1.6% vs FY2026
FY2026 Enacted
$1,226.6M
▼ 21% vs FY2025
FY2025 Actual
$1,551.3M
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 $1.25B for Space Technology Development and Prototyping under RDT&E program element 1206410SF, up 1.6% over FY2026.
Funding trajectory
Funding profile, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure.
Actual Enacted Request Outyear (FYDP)
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 1,551.3 |
| FY2026 | Enacted | 1,226.6 |
| FY2027 | Request | 1,246.3 |
| FY2028 | Outyear | 1,031.9 |
| FY2029 | Outyear | 415.9 |
| FY2030 | Outyear | 332.8 |
| FY2031 | Outyear | 339.5 |
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
3 projects roll up into PE 1206410SF
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 2% overall, which can hide much larger swings below.
Project 643729
$172.3MFY2027 request ▼ 56%Integration and Battle Management
FY2025 actual$262.7M
FY2026 enacted$391.7M
FY2027 request$172.3M
Product Development
Project 643732
$5.6MFY2027 request ▼ 94%Sensing
FY2025 actual$95.2M
FY2026 enacted$87.5M
FY2027 request$5.6M
Product Development
Congressional action
Congressional marks
Committee marks on the FY2027 request. Adds and cuts are reconciled in conference before they become law.
RequestPresident's Budget
$1,246.3M
House NDAA (HASC)HASC
$1,246.3M full · +$0
Senate NDAA (SASC)SASC
$1,246.3M full · +$0
House Approps (HAC-D)HAC_D
$1,256.3M +$10.0M · +0.8%
▲ $10.0M 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 flows | Share | $M |
|---|---|---|
| Other / unspecified | 100% | 1,246.3 |
| FY2027 request | 100% | 1,246.3 |
Program detail
Mission & acquisition strategy
The Space Development Agency (SDA) is developing and demonstrating the Proliferated Warfighter Space Architecture (PWSA) Transport Layer (Projects 643729, 643731, 643732) for Guardians across the Combat Support, Satellite Communications, Operations, and Warfighting mission areas. As a result, the Service will improve readiness and operational reach of existing force structure and continue to advance all near term effects. SDA is rapidly developing and demonstrating the next generation proliferated warfighter space architecture to enable U.S. military operations to be responsive to emerging multi-domain threats against our national security.
Partners for these activities may include Missile Defense Agency (MDA), Space Systems Command (SSC), Space Operations Command (SpOC), Space Training and Readiness Command (STARCOM), Space Rapid Capabilities Office (SpRCO), DoW Combatant Commands, DoW research centers, small businesses, large defense contractors, commercial space providers, non-traditional aerospace and defense contractors, Federally Funded Research and Development Centers, and University Affiliated Research Centers. SDA's Transport Layer Tranche 1 and Transport Layer Tranche 2 space systems are being acquired via Firm Fixed Price contracts conducted in accordance with Other Transaction Authority (OT) for prototyping processes. Ground activities include Cost Plus Award Fee contracts.
Project 643731, 643729, 643732 — Transport
- Product Development
Ask Hitch
Ask this program element
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 1206410SF is growing fastest, and which is shrinking?How is the FY2027 request split between industry and government performers?
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 1206410SF (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "Space Technology Development and Prototyping (PE 1206410SF)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/1206410SF
Machine access
Markdown twin
/programs/1206410SF.md · MCP mcp.hitchintel.com → budget_get_program_element, budget_get_cong_marksFY2027 Request
$1,068.5M
▲ 43% vs FY2026
FY2026 Enacted
$747.4M
▼ 37% vs FY2025
FY2025 Actual
$1,193.5M
Prior year
Transport — one RDT&E project inside PE 1206410SF. Congressional marks are recorded on the program element, not on a project.
Project 643731 — Transport — requests $1.07B in FY2027, 86% of the $1.25B requested for program element 1206410SF. Year over year it grows 43% against FY2026.
Funding trajectory
Project 643731 funding, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.
Actual Enacted Request Outyear (FYDP)
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 1,193.5 |
| FY2026 | Enacted | 747.4 |
| FY2027 | Request | 1,068.5 |
| FY2028 | Outyear | 930.3 |
| FY2029 | Outyear | 338.7 |
| FY2030 | Outyear | 273.4 |
| FY2031 | Outyear | 278.9 |
Inside the project
2 accomplishments / planned programs
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.
Transport▲ 57%
FY2025 actual$1,182.8M
FY2026 enacted$679.0M
FY2027 request$1,068.5M
Tranche 0 - Conduct residual experimentation in support of Proliferated Warfighter Space Architecture (PWSA) Transport Risk Reduction. - End-of-life fleet operations Tranche 1 - Complete system level verification and Developmental Testing. - Complete Operational Testing of Transport Layer Tranche 1 (TLT1) capabilities. - Conduct space…
Read the FY2027 plan →Classified Program▼ 100%
FY2025 actual$10.7M
FY2026 enacted$5.9M
FY2027 request—
Due to the classified nature of this project, specific details are available at a higher classification level.
Project detail
What project 643731 buys
SDA is rapidly developing and demonstrating next generation space capabilities for the joint warfighter enabled by proliferation of satellites in Low Earth Orbit (LEO) and expedited acquisition model utilizing rapid spiral development. SDA is developing capabilities to address a wide range of Department of War (DoW) space needs that align with the United States Space Force Space Warfighting framework and includes space-based battle management and a ground support infrastructure. SDA will orchestrate the rapid development and fielding of the Proliferated Warfighter Space Architecture (PWSA), a resilient military sensing and data transport capability via a proliferated space architecture in LEO. This program element funds the development and demonstration of space technologies to deliver space-based command and control, tasking, mission processing and dissemination capabilities, as well as an integrated, resilient network of ground support capabilities, to U.S. joint warfighting forces in bi-annual tranches, which began in FY 2022.
R-3 lines of work
- Product Development
FY2027 Request
$172.3M
▼ 56% vs FY2026
FY2026 Enacted
$391.7M
▲ 49% vs FY2025
FY2025 Actual
$262.7M
Prior year
Integration and Battle Management — one RDT&E project inside PE 1206410SF. Congressional marks are recorded on the program element, not on a project.
Project 643729 — Integration and Battle Management — requests $172.3M in FY2027, 14% of the $1.25B requested for program element 1206410SF. Year over year it falls 56% against FY2026.
Funding trajectory
Project 643729 funding, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.
Actual Enacted Request Outyear (FYDP)
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 262.7 |
| FY2026 | Enacted | 391.7 |
| FY2027 | Request | 172.3 |
| FY2028 | Outyear | 96.9 |
| FY2029 | Outyear | 74.2 |
| FY2030 | Outyear | 56.5 |
| FY2031 | Outyear | 57.6 |
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.
FY2025 actual$262.7M
FY2026 enacted$391.7M
FY2027 request$172.3M
Tranche 0 - Conduct residual experimentation in support of PWSA Risk Reduction. Tranche 1 - Sustain and continue automation of ground mission management, network management, enterprise system management capabilities to support Proliferated Warfighter Space Architecture (PWSA) operations. - Maintain Operation Centers, ground networks, and…
Read the FY2027 plan →Project detail
What project 643729 buys
SDA is rapidly developing and demonstrating next generation space capabilities for the joint warfighter enabled by proliferation of satellites in Low Earth Orbit (LEO) and expedited acquisition model utilizing rapid spiral development. SDA is developing capabilities to address a wide range of Department of War (DoW) space needs that align with the United States Space Force Space Warfighting framework and includes space-based battle management and a ground support infrastructure. SDA will orchestrate the rapid development and fielding of the Proliferated Warfighter Space Architecture (PWSA), a resilient military sensing and data transport capability via a proliferated space architecture in LEO. This program element funds the development and demonstration of space technologies to deliver space-based command and control, tasking, mission processing and dissemination capabilities, as well as an integrated, resilient network of ground support capabilities, to U.S. joint warfighting forces in bi-annual tranches, which began in FY 2022.
R-3 lines of work
- Product Development
FY2027 Request
$5.6M
▼ 94% vs FY2026
FY2026 Enacted
$87.5M
▼ 8.0% vs FY2025
FY2025 Actual
$95.2M
Prior year
Sensing — one RDT&E project inside PE 1206410SF. Congressional marks are recorded on the program element, not on a project.
Project 643732 — Sensing — requests $5.6M in FY2027, 0.4% of the $1.25B requested for program element 1206410SF. Year over year it falls 94% against FY2026.
Funding trajectory
Project 643732 funding, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.
Actual Enacted Request Outyear (FYDP)
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 95.2 |
| FY2026 | Enacted | 87.5 |
| FY2027 | Request | 5.6 |
| FY2028 | Outyear | 4.6 |
| FY2029 | Outyear | 2.9 |
| FY2030 | Outyear | 2.9 |
| FY2031 | Outyear | 3.0 |
Inside the project
2 accomplishments / planned programs
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.
Sensing▼ 94%
FY2025 actual$25.4M
FY2026 enacted$29.7M
FY2027 request$1.7M
Tranche 0 - Conduct residual experimentation in support of PWSA WFOV Risk Reduction. - End-of-life fleet operations.
Classified Projects▼ 93%
FY2025 actual$69.8M
FY2026 enacted$57.8M
FY2027 request$3.9M
Due to the classified nature of this project, specific details are available at a higher classification level.
Project detail
What project 643732 buys
SDA is rapidly developing and demonstrating next generation space capabilities for the joint warfighter enabled by proliferation of satellites in Low Earth Orbit (LEO) and expedited acquisition model utilizing rapid spiral development. SDA is developing capabilities to address a wide range of Department of War (DoW) space needs that align with the United States Space Force Space Warfighting framework and includes space-based battle management and a ground support infrastructure. SDA will orchestrate the rapid development and fielding of the Proliferated Warfighter Space Architecture (PWSA), a resilient military sensing and data transport capability via a proliferated space architecture in LEO. This program element funds the development and demonstration of space technologies to deliver space-based command and control, tasking, mission processing and dissemination capabilities, as well as an integrated, resilient network of ground support capabilities, to U.S. joint warfighting forces in bi-annual tranches, which began in FY 2022.
R-3 lines of work
- Product Development