R-2A Activity · President's Budget PB2027

Eagle Tether

Activity a4·Project 676020 — F-15 Modernization·PE 0207134F·U.S. Air Force
FY2027 Request
$13.6M
▼ 39% vs FY2026
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This activity requests $13.6M in FY2027, 4.2% of project 676020, down 39% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

FY2027 Request
$13.6M
▼ 39% vs FY2026
FY2026 Enacted
$22.2M
No FY2025 funding
FY2025 Actual
$0.0M
Prior year
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project 676020 of PE 0207134F. 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 to develop and integrate single-band SATCOM apertures and terminals with aircraft systems and modify aircraft software (operational flight profile) to enable integration and sharing of data in accordance with DAF Battle Network architecture in an open architecture implementation. Conduct test & evaluation activities (systems integration laboratory, fit checks, ground testing, developmental flight test and associated airworthiness certifications)

FY2026 to FY2027 change

Non-recurring engineering begins to ramp down as program nears test jet install and flight test.

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 and integrate single-band SATCOM apertures and terminals with aircraft systems and modify aircraft software (operational flight profile) to enable integration and sharing of data in accordance with DAF Battle Network architecture in an open architecture implementation. Conduct test & evaluation activities (systems integration laboratory, fit checks, ground testing, developmental flight test and associated airworthiness certifications)

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.

00.0FY25ACTUAL22.2FY26ENACTED13.6FY27REQUEST
Actual Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.0
FY2026Enacted22.2
FY2027Request13.6

This activity is 4.2% of project 676020's FY2027 request and 4.2% of PE 0207134F'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

5 activities in project 676020

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.

Operational Flight Program (OFP) Development Efforts$225.0M ▲ 65%Flight Test$38.0M ▼ 4%GPS M-Code / R-EGI$37.3M ▲ 57%
Eagle Tether — this activity$13.6M ▼ 39%
F-15 Radar Enhancements (RE)$9.0M ▲ 8%
Source
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibit R-2A · PE 0207134F, project 676020 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/0207134F/676020/a4.md · MCP mcp.hitchintel.combudget_get_activity