R-2A Activity · President's Budget PB2027

Advanced Complex Systems Studies and Concepts

FY2027 Request
$62.3M
▲ 61631% vs FY2026
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This activity requests $62.3M in FY2027, 12% of project ACX-01, up 61631% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

FY2027 Request
$62.3M
▲ 61631% vs FY2026
FY2026 Enacted
$0.1M
In law
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project ACX-01 of PE 0603468E. 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

- Initiate research approaches for technologies that enable decisive military effects at distances from the tactical to the strategic. - Explore new insertion routes and cost/fuel efficient range improvements. - Research technologies for pervasive persistence for observation and constant low-level engagement, supporting blue force and allies. - Evaluate life extension and upgrading existing systems with new technologies to confound adversary advances. - Explore novel engineering, technology, and systems approaches that have the potential to change the traditional calculus for military advantage. - Investigate low-cost mass/volume in quantity to overwhelm defense and deliver effects. - Explore decoy denial of service attack and new sensing modalities that change the game for defense operations. - Research capabilities to create doubt among adversaries and strengthen resolve of allies. - Further investigate other innovative ideas to disrupt adversary perceived advantages.

FY2026 to FY2027 change

The FY 2027 increase reflects studies and concepts initiations including, but not limited to, the advancement of new technologies to enable pervasive persistence for observation and constant low-level engagement, to develop decoy denial of service attack and new sensing modalities, to evaluate life extension and upgrading of existing systems and to explore new insertion routes and cost/fuel efficient range improvements.

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

- Explore and refine advanced platform concepts to deliver integrated, cross-domain dominance solutions at disruptive scale and unprecedented penetration capabilities. - Evaluate innovative architectures, operational concepts, and propulsion technologies spanning chemical rocket, airbreathing, and hybrid air vehicle systems to effectively counter and penetrate advanced Anti-Access/Area Denial (A2/AD) environments.

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.

255000.1FY26ENACTED62.3FY27REQUEST
Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2026Enacted0.1
FY2027Request62.3

This activity is 12% of project ACX-01's FY2027 request and 12% of PE 0603468E'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

14 activities in project ACX-01

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.

Longshot$151.5M ▲ 188%
Advanced Complex Systems Studies and Concepts — this activity$62.3M ▲ 61631%
SPeed and Runway INdependent Technologies (SPRINT) X-Plane Demonstration Project$62.1M ▲ 31%Scaled Hypersonics Studies and Concepts$56.0M NEWOtter$47.7M ▲ 33%
Valley Forge$37.1M ▲ 706%
Artificial Intelligence (AI) Reinforcements (AIR)$32.2M ▼ 38%
More Opportunities with HAWC (MoHAWC)$20.0M flat
Process Intensified Energetics (PIE)$13.0M NEW
Lunar Assay via Small Satellite Orbiter (LASSO)$8.9M NEW
Rubble to Rockets (R2)$7.5M NEW
Robotic Servicing of Geosynchronous Satellites (RSGS)$1.7M ▼ 76%
DARPA Lift Challenge▼ 100%
Control of Revolutionary Aircraft with Novel Effectors (CRANE)▼ 100%
Source
FY2027 Office of the Secretary of Defense RDT&E Budget Justification · Exhibit R-2A · PE 0603468E, project ACX-01 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/0603468E/ACX-01/a11.md · MCP mcp.hitchintel.combudget_get_activity