# Space Technology Development and Prototyping — Program Element 1206410SF

**Program element:** 1206410SF  
**Component:** U.S. Space Force  
**Appropriation:** 3620F — RDT&E, Space Force  
**Budget Activity:** 4 — Advanced Component Development & Prototypes  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/1206410SF

## Summary

U.S. Space Force requests $1.25B in FY2027, before stepping down 73% across the five-year plan. In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators added 0.8% (to $1.26B).

## Funding profile

| 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 |

> Estimate types are not summed — the profile mixes actuals, enacted law, the request, and outyear projections.

## Congressional marks (FY2027)

| Stage | Marked ($M) | Change ($M) |
|---|---|---|
| Request | 1,246.3 | — |
| House NDAA (HASC) | 1,246.3 | +0.0 |
| Senate NDAA (SASC) | 1,246.3 | +0.0 |
| House Approps (HAC-D) | 1,256.3 | +10.0 |

> FY2027 NDAA authorization marks, as of 2026-07-27. Not appropriations or final law.

## Projects (3)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| 643731 | Transport | 1,193.5 | 747.4 | 1,068.5 | +43% |
| 643729 | Integration and Battle Management | 262.7 | 391.7 | 172.3 | −56% |
| 643732 | Sensing | 95.2 | 87.5 | 5.6 | −94% |

> Projects are the summable leaves: the program element total is their sum, never added to it.

### Project 643731 — Transport

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.

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Transport | 1,182.8 | 679.0 | 1,068.5 |
| Classified Program | 10.7 | 5.9 | — |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

### Project 643729 — Integration and Battle Management

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.

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Integration and Battle Management | 262.7 | 391.7 | 172.3 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

### Project 643732 — Sensing

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.

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Sensing | 25.4 | 29.7 | 1.7 |
| Classified Projects | 69.8 | 57.8 | 3.9 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

## Where the FY2027 request goes

| Category | Share | $M |
|---|---|---|
| Other / unspecified | 100% | 1,246.3 |

> R-3 exhibit contract funding, not USAspending obligations.

## 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.

## Related program elements

- [1206446SF — Resilient MW/MT - LEO](https://hitchintel.com/programs/1206446SF) (Space Force)
- [1203173SF — R&D Space & Missile Operations](https://hitchintel.com/programs/1203173SF) (Space Force)
- [0604555D8Z — Operational Energy Prototyping](https://hitchintel.com/programs/0604555D8Z) (Defense-Wide)
- [0604001F — NC3 Advanced Concepts](https://hitchintel.com/programs/0604001F) (Air Force)

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-3, PE 1206410SF (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="1206410SF")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*