R-2A Activity · President's Budget PB2027

ESSM System Integration and Test

FY2027 Request
$16.1M
▼ 39% vs FY2026
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This activity requests $16.1M in FY2027, 32% of project 0173, down 39% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

FY2027 Request
$16.1M
▼ 39% vs FY2026
FY2026 Enacted
$26.1M
▲ 122% vs FY2025
FY2025 Actual
$11.8M
Prior year
Planned work

What the FY2027 request buys

Verbatim from the R-2A exhibit for project 0173 of PE 0604756N. 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

Enterprise testing continues in FY 2027 using both ESSM Blk 1 and 2. WIT is planned on FORD and AMERICA class platforms, as well as backfit NIMITZ and WASP classes. Platform DT/OT continues, as well as an ESSM Blk 2 OT event on SDTS. ESSM Blk 2 IOT&E finishes on Arleigh Burke Class DDGs. Modeling and Simulation runs for the record are also planned to be executed and reported to Operational Test and Evaluation Force (OPTEVFOR). Support for Aegis CP24 (TEMP 1669) and DDG Flt III testing continues in FY 2027.

FY2026 to FY2027 change

Decrease of funding in FY 2027 amounts are caused by the procurement of targets in FY 2026.

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

Enterprise testing starts in FY26 using both ESSM Blk 1 and 2. Waterfront Integration Testing (WIT) will be planned and conducted on the Self Defense Test Ship, CVN 79, and LHA 8 (using the MK-29 Min Mod configuration) as well as DT/OT live fire events supporting both platform level and combat system level testing. Aegis BL 10 testing continues with multiple events. ESSM Blk 2 IOT&E Phase 2 begins on Arleigh Burke Class DDGs in FY26. Testing will include WIT and multiple live fire events on multiple platforms. A total of 14 targets, with modifications, to include range support will be procured to support these events and events in early FY 2027. Threat model development also occurs in FY26 to be included in lethality assessment required by DOT&E.

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.

25011.8FY25ACTUAL26.1FY26ENACTED16.1FY27REQUEST
Actual Enacted Request
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual11.8
FY2026Enacted26.1
FY2027Request16.1

This activity is 32% of project 0173's FY2027 request and 5.4% of PE 0604756N'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

6 activities in project 0173

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.

Adaptable Deck Launcher (ADL)$31.5M ▼ 30%
ESSM System Integration and Test — this activity$16.1M ▼ 39%
NATO SEASPARROW Tracker-Illuminator System (TIS) Development$1.2M ▼ 1%
ESSM Technology Roadmap Analysis & Prototyping Support$0.6M ▼ 33%
Other Development$0.5M ▼ 62%
ESSM Blk 2 Software Upgrades$0.0M ▼ 100%
Source
FY2027 Department of the Navy RDT&E Budget Justification · Exhibit R-2A · PE 0604756N, project 0173 (President's Budget PB2027). Congressional marks are recorded on the program element, never on an activity.
Machine access
Markdown twin /programs/0604756N/0173/a0.md · MCP mcp.hitchintel.combudget_get_activity