R-2A Activity · President's Budget PB2027

PTES Prototype Ground and Software Development

Activity a0·Project 643726 — PTW Over WGS·PE 1206760SF·U.S. Space Force
FY2027 Request
$58.4M
▲ 71% vs FY2026
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This activity requests $58.4M in FY2027, 79% of project 643726, up 71% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

FY2027 Request
$58.4M
▲ 71% vs FY2026
FY2026 Enacted
$34.0M
▲ 120% vs FY2025
FY2025 Actual
$15.5M
Prior year
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project 643726 of PE 1206760SF. 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 development of software focused on initial capability delivery and develop fixes for discrepancies identified in test and evaluation activities in order to achieve IOC. Continue development to FOC delivery. Implement system resiliency, cyber resiliency, and crypto standards necessary to operate in the contested space and cyber domains.

FY2026 to FY2027 change

Increase due to continued software development to deliver the initial prototype, increased support required through test and evaluation activities, and implementation of system resiliency, cyber resiliency, and crypto standards.

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

Continue development of software focused on initial capability delivery and develop fixes for discrepancies identified in test and evaluation activities. Implement system resiliency, cyber resiliency, and crypto standards necessary to operate in the contested space and cyber domains.

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.

2550015.5FY25ACTUAL34.0FY26ENACTED58.4FY27REQUEST
Actual Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual15.5
FY2026Enacted34.0
FY2027Request58.4

This activity is 79% of project 643726's FY2027 request and 37% of PE 1206760SF'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

2 activities in project 643726

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.

PTES Prototype Ground and Software Development — this activity$58.4M ▲ 71%
PTES System Development Baseline, Integration, and Test$15.6M ▼ 33%
Source
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibit R-2A · PE 1206760SF, project 643726 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/1206760SF/643726/a0.md · MCP mcp.hitchintel.combudget_get_activity