R-2A Activity · President's Budget PB2027

Aero-Structure Interactions and Control

FY2027 Request
$28.3M
▼ 8.1% vs FY2026
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This activity requests $28.3M in FY2027, 34% of project 613002, down 8.1% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

FY2027 Request
$28.3M
▼ 8.1% vs FY2026
FY2026 Enacted
$30.8M
▼ 5.4% vs FY2025
FY2025 Actual
$32.5M
Prior year
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project 613002 of PE 0601102F. 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 investigating the characterization, modeling, and exploitation of interactions between the unsteady aerodynamic flow field and the dynamic air vehicle structure to enable enhanced performance in next-generation Department of the Air Force systems. - Continue to explore the synergy gained from an interdisciplinary integration of fluid mechanics, high-performance structures, and thermodynamics research.

FY2026 to FY2027 change

FY 2027 decreased compared to FY 2026 by $2.490 million due to decreased emphasis on Aero-Structure Interactions and Control. This reduction reflects programmatic adjustments to the DAF Science and Technology portfolio for strategic realignment to optimize core research areas and improve resource efficiency. This will result in approximately 10 fewer grants awarded in Aero-Structure Interactions and Control.

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

- Investigate the characterization, modeling, and exploitation of interactions between the unsteady aerodynamic flow field and the dynamic air vehicle structure to enable enhanced performance in next-generation Department of the Air Force systems. - Explore the synergy gained from an interdisciplinary integration of fluid mechanics, high-performance structures, and thermodynamics research.

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.

25032.5FY25ACTUAL30.8FY26ENACTED28.3FY27REQUEST
Actual Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual32.5
FY2026Enacted30.8
FY2027Request28.3

This activity is 34% of project 613002's FY2027 request and 9.5% of PE 0601102F'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 613002

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.

Complex Materials and Structures$31.1M ▼ 8%
Aero-Structure Interactions and Control — this activity$28.3M ▼ 8%
Energy, Power, and Propulsion$24.4M ▼ 8%
Source
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibit R-2A · PE 0601102F, project 613002 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/0601102F/613002/a0.md · MCP mcp.hitchintel.combudget_get_activity