R-2A Activity · President's Budget PB2027

Airborne High Frequency Radio Modernization (AHFRM)

Activity a0·Project 675046 — Systems Engineering & Integration·PE 0303133F·U.S. Air Force
FY2027 Request
$33.2M
▲ 69% vs FY2026
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This activity requests $33.2M in FY2027, 100% of project 675046, up 69% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

FY2027 Request
$33.2M
▲ 69% vs FY2026
FY2026 Enacted
$19.7M
▲ 134% vs FY2025
FY2025 Actual
$8.4M
Prior year
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project 675046 of PE 0303133F. 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

-Will begin requirements refinement -Will begin Increment 1 Development -Will begin Increment 1 Test and Evaluation -Will complete Increment 2 antenna coupler prototyping -Will begin Increment 2 antenna coupler test and evaluation -Will complete Increment 2 critical design review of antenna coupler -Will begin software integration of with ARC-260 with antenna coupler

FY2026 to FY2027 change

The $13.506 million increase from FY 2026 to FY 2027 is due to the development of Increment 1, a comprehensive software and firmware effort projected to last a year and a half, which is required for the successful integration of the new digital coupler in Increment 2.

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

-Will perform Vendor site visits to determine Vendor eligibility -Will select Vendor for digital coupler development -Will begin risk assessment and cost analysis activities -Will perform system engineering trade studies -Will begin requirements refinement and validation activities -Will begin AN/ARC-260 digital coupler prototyping

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.

2508.4FY25ACTUAL19.7FY26ENACTED33.2FY27REQUEST
Actual Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual8.4
FY2026Enacted19.7
FY2027Request33.2

This activity is 100% of project 675046's FY2027 request and 100% of PE 0303133F'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 675046

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.

Airborne High Frequency Radio Modernization (AHFRM) — this activity$33.2M ▲ 69%
Source
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibit R-2A · PE 0303133F, project 675046 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/0303133F/675046/a0.md · MCP mcp.hitchintel.combudget_get_activity