R-2A Activity · President's Budget PB2027

SOF Combat Diving (CBDIV)

FY2027 Request
$12.1M
◆ Restart — nothing in FY2026
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This activity requests $12.1M in FY2027, 4.2% of project S0417 — a restart, funded in FY2025 and zeroed in FY2026. The R-2A exhibit describes it across FY2025–FY2027, including what the FY2027 money is planned to buy.

Restart

This activity was funded in FY2025 ($11.3M), zeroed in FY2026, and requests $12.1M again in FY2027. A restart has an incumbent and a new start does not; with a zero current year there is no percentage to quote, which is why it appears in no growth ranking.

FY2027 Request
$12.1M
No FY2026 funding
FY2026 Enacted
$0.0M
▼ 100% vs FY2025
FY2025 Actual
$11.3M
Prior year
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project S0417 of PE 1160483BB. 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

Continues extended table development. Finalizes testing of next collective propulsion device and acoustic communications devices. Continues testing of A/O communications devices and finalizes testing of next collective propulsion device. Begins development of Expeditionary Diver Treatment System and Submarine Lock Out Trunk trainer.

FY2026 to FY2027 change

Increase of $12.088 million continues extended table development, testing of next collective propulsion device and acoustic communications devices, testing of A/O communications devices and next collective propulsion device. Begins development of Expeditionary Diver Treatment System and Submarine Lock Out Trunk trainer.

Before the request year

FY2025–FY2026: what came before

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

Begin extended table development, both in depth and duration, testing and development of next generation diver navigation equipment, next generation propulsion devices, SO-p Lock In/Out (LIO) deep diving Underwater Breathing Apparatus, and continues development and integration of communications devices for both acoustic and optical. Note: FY 2026 President's Budget included $0.00 million in discretionary funding and $27.764 million in mandatory funding for CBDIV.

FY2025 accomplishments

Continue development, prototyping and the advancement of Engineering Development Model (EDM), testing and rapid prototyping of new SO-p underwater mixed gas breathing apparatus and the development of associated diving procedures specific to SO-p capabilities. Development of emergency breathing systems and diving treatment systems supporting the SO-p diving deployment from USSOCOM maritime platforms, next generation diver propulsive equipment with integrated thermal protection increasing range and duration in the water, development of underwater communications networks of diver-to-diver communications, and optical and acoustic communication systems of a new mixed gas underwater breathing apparatus (UBA).

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.

011.3FY25ACTUAL0.0FY26ENACTED12.1FY27REQUEST
Actual Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual11.3
FY2026Enacted0.0
FY2027Request12.1

This activity is 4.2% of project S0417's FY2027 request and 3.4% of PE 1160483BB'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

7 activities in project S0417

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.

Classified Programs$248.3M ▲ 109%
Undersea Craft Mission Equipment (UCME)$13.2M RESTART
SOF Combat Diving (CBDIV) — this activity$12.1M RESTART
Dry Deck Shelter (DDS) Modernization, Program Number 817$5.0M RESTART
Sea, Air, and Land (SEAL) Delivery Vehicle (SDV), Program Number 848$5.0M RESTART
Small Unmanned Surface Vehicle (SUSV), Program Number V36$2.0M RESTART
Small Unmanned Underwater Vehicle (SUUV), Program Number 799$1.4M RESTART
Source
FY2027 Office of the Secretary of Defense RDT&E Budget Justification · Exhibit R-2A · PE 1160483BB, project S0417 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/1160483BB/S0417/a2.md · MCP mcp.hitchintel.combudget_get_activity