R-2A Activity · President's Budget PB2027

Ground Based Radar (GBR) digitization

Activity a0·Project 677825 — Radar SLEP·PE 1203909SF·U.S. Space Force
FY2027 Request
$128.6M
◆ New start in FY2027
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This activity requests $128.6M in FY2027, 100% of project 677825 — a new start with no prior-year and no current-year money. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

New start

This activity requests $128.6M in FY2027 with no prior-year and no current-year funding. There is no incumbent line to compare it with — it did not exist before this President's Budget.

FY2027 Request
$128.6M
No FY2026 funding
FY2026 Enacted
$0.0M
No FY2025 funding
FY2025 Actual
$0.0M
Prior year
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project 677825 of PE 1203909SF. This is the budget justification's own description of work that has not happened yet — the one thing no other level of the budget carries.

FY2027 planned work

Complete Preliminary Design Review and begin work on Critical Design review. Purchase long lead hardware and begin prototyping and hardware test efforts. In addition, work will begin on the software and firmware for the hardware design that is chosen and being matured. Rapidly respond to implement system resiliency and situational awareness necessary to operate in the contested space domain while continuing to perform missile warning/missile track/missile defense missions. Activities may include, but are not limited to, program office support, studies, technical analysis, experimentation, risk reduction, prototyping, and activities that may leverage commercial, U.S. Government partnership, and international opportunities to respond to existing and emerging adversarial threats with speed and agility. Collaborate with Government stakeholders to solidify expectations, user needs, and areas for improvement on current operational systems.

FY2026 to FY2027 change

FY 2027 program increase is due to FY2026 mandatory funding (Reconciliation Bill) and not included in the previous budget document. Additionally, FY 2027 will procure long lead hardware items and begin prototype testing. Furthermore, design reviews are planned for FY 2027.

Before the request year

FY2026: the year under way

Prior-year accomplishments and current-year plans from the same exhibit. Context for the FY2027 plan, not a series — an activity partitions its project exactly in the request year, but can under-cover it in earlier years.

FY2026 plans — current year

Complete System Requirements Review and begin initial design efforts. Stand up digital simulation laboratory. Begin purchasing of required hardware for digital receiver and prototype elements. Rapidly respond to implement system resiliency and situational awareness necessary to operate in the contested space domain while continuing to perform missile warning/missile track/missile defense missions. Activities may include, but are not limited to, program office support, studies, technical analysis, experimentation, risk reduction, prototyping, and activities that may leverage commercial, U.S. Government partnership, and international opportunities to respond to existing and emerging adversarial threats with speed and agility. Collaborate with Government stakeholders to solidify expectations, user needs, and areas for improvement on current operational systems.

Money

Three years, and no five-year plan

An R-2A activity publishes the prior year, the current year and the budget year. The FYDP outyears exist at project and program-element level and are deliberately absent here rather than inferred. Estimate types are colored and never summed into one figure.

25507510012500.0FY25ACTUAL0.0FY26ENACTED128.6FY27REQUEST
Actual Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.0
FY2026Enacted0.0
FY2027Request128.6

This activity is 100% of project 677825's FY2027 request and 100% of PE 1203909SF's. In the request year the activities under a project sum to it exactly; in the current year they under-cover it in about 9% of cases, so an activity's delta can legitimately exceed its parent's and the two must not be compared row to row.

Where this sits

1 activity in project 677825

Every R-2A line of this project, largest FY2027 request first. Linked where the activity has enough of its own narrative to carry a page; the rest are shown in full on the program-element page.

Ground Based Radar (GBR) digitization — this activity$128.6M NEW
Source
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibit R-2A · PE 1203909SF, project 677825 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/1203909SF/677825/a0.md · MCP mcp.hitchintel.combudget_get_activity