RDT&E Project · President's Budget PB2027

AS(X) Submarine Tender

Project 5010·PE 0603563N — Ship Concept Advanced Design·U.S. Navy·BA4
FY2027 Request
$90.1M
◆ New start in FY2027
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Project 5010 — AS(X) Submarine Tender requests $90.1M in FY2027, 25% of the $353.9M requested for program element 0603563N — a new start, with no prior-year and no current-year money. 1 R-2A activity decomposes the request, 1 new this cycle.

New start

This project requests $90.1M in FY2027 with no prior-year and no current-year funding. There is no incumbent line to compare it with — it did not exist before this President's Budget.

MarketShipbuilding & Undersea

Matched on this project's title. A title match, not a curated taxonomy — narrative-only matches are not shown at all rather than shown with a caveat nobody reads. No market size is quoted here: a market spans appropriations far beyond this program element.

FY2027 Request
$90.1M
No FY2026 funding
FY2026 Enacted
$0.0M
No FY2025 funding
FY2025 Actual
$0.0M
Prior year
Project detail

What project 5010 buys

AS(X) will conduct steady state and wartime sustained, forward-based tending, resupply, depot and intermediate level repair operations on submarines while anchored or pier side. In steady state, AS(X) will provide pier side support in a forward deployed submarine homeport, providing sustained repair, supply, weapons handling, and tending operations for submarines. AS(X) is being specifically designed to support deployed VIRGINIA class (VCS), COLUMBIA class (CLB) and future generation submarines in the 21st century. AS(X) is required to support all aspects of Intermediate level maintenance and support to deliver expeditionary tending operations to VCS block V (and later) submarines. The FY2026 budget for AS(X) Submarine Tender was zeroed out as part of the Congressional Mark for Reconciliation Funding Incongruence. FY2027 request for AS(X) Submarine Tender includes $90,092 thousand of discretionary funding and $0 thousand of mandatory funding for a total of $90,092 thousand.

R-3 lines of work
  • Product Development
  • Support
  • Test and Evaluation
  • Management Services
Funding trajectory

Project 5010 funding, FY2025–FY2031

Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.

25507500.0FY25ACTUAL0.0FY26ENACTED90.1FY27REQUEST2.2FY282.5FY292.5FY302.6FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.0
FY2026Enacted0.0
FY2027Request90.1
FY2028Outyear2.2
FY2029Outyear2.5
FY2030Outyear2.5
FY2031Outyear2.6
Inside the project

1 accomplishment / planned program

The R-2A exhibit — the only level of the budget that describes work that has not happened yet. Activities carry the prior, current and budget year only, no five-year plan. Each describes FY2027 work in enough detail to have its own page; the rest are shown here in full. Coverage is partial across the corpus, so count activities, never total them.

FY2025 actual$0.0M
FY2026 enacted$0.0M
FY2027 request$90.1M

Continue design maturation efforts to improve design definition/maturity, cost certainty, & affordability. Continue development of required acquisition documentation & associated tailoring to support Milestone B/C and test planning. Conduct Milestone B/C. Revise DD&C RFP in preparation for release and award of lead and follow ships to…

Read the FY2027 plan →