R-2A Activity · President's Budget PB2027

Architecture Evolution Plan Modernization

Activity a2·Project 67A021 — OCX·PE 1206423SF·U.S. Space Force
FY2027 Request
$222.2M
▲ 207% vs FY2026
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This activity requests $222.2M in FY2027, 100% of project 67A021, up 207% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

FY2027 Request
$222.2M
▲ 207% vs FY2026
FY2026 Enacted
$72.5M
In law
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project 67A021 of PE 1206423SF. 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

Continue upgrades to modernize the AEP legacy ground control segment system to deliver OCX CDD requirements in place of OCX. Upgrades include GPS IIIF Launch, GPS IIIF C2, SAASM and NGA Receiver Integration. Additional upgrades to system interface tools are planned to support development and fielding of CNAV monitoring CDD requirements. Rapidly respond to implement system resiliency and situational awareness necessary to operate in the contested space domain. 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.

FY2026 to FY2027 change

FY 2027 funding increases due to on-going AEP modernization efforts.

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

Develop upgrades to modernize the AEP legacy ground control segment system to deliver OCX Capability Development Document (CDD) requirements in place of OCX. Upgrades include GPS IIIF Launch, GPS IIIF Command & Control (C2), Selective Availability Anti‐Spoofing Module (SAASM) and National Geospatial‐Intelligence Agency (NGA) Receiver Integration. Additional upgrades to system interface tools are planned to support development and fielding of Civil Navigation (CNAV) monitoring CDD requirements. Rapidly respond to implement system resiliency and situational awareness necessary to operate in the contested space domain. 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.

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.

50100150200072.5FY26ENACTED222.2FY27REQUEST
Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2026Enacted72.5
FY2027Request222.2

This activity is 100% of project 67A021's FY2027 request and 67% of PE 1206423SF'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

3 activities in project 67A021

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 project page.

Architecture Evolution Plan Modernization — this activity$222.2M ▲ 207%
OCX Development▼ 100%
Technical Support▼ 100%
Source
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibit R-2A · PE 1206423SF, project 67A021 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/1206423SF/67A021/a2.md · MCP mcp.hitchintel.combudget_get_activity