RDT&E Project · President's Budget PB2027

BBG(X) Concept Development

FY2027 Request
$585.9M
◆ New start in FY2027
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Project 0413 — BBG(X) Concept Development requests $585.9M in FY2027, 88% of the $666.6M requested for program element 0603564N — a new start, with no prior-year and no current-year money. 2 R-2A activities decompose the request, 2 new this cycle. Shipbuilders is the largest named R-3 performer at $139.7M, 24% of the project's FY2027 R-3 total.

New start

This project requests $585.9M 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.

FY2027 Request
$585.9M
No FY2026 funding
FY2026 Enacted
$0.0M
No FY2025 funding
FY2025 Actual
$0.0M
Prior year
Project detail

What project 0413 buys

The Guided Missile Battleship (BBG(X)) program supports the expansion and modernization of the Nation's large surface combatant fleet, reinforcing maritime dominance. The Battleship is based on the validated requirement for high-end surface capability directly supporting the Navy Warfighting Concept (NWC) and Expanded Maritime Maneuver (EMM) that cannot be met by current fleet assets. Adding capability at the highest end of the Golden Fleet high-low mix, the Battleship's primary role is to deliver high-volume, long-range offensive fires and serve as a robust, survivable forward command and control platform. The expanded size and energy density of the new Battleship provide critical advantages for future naval warfare, offering a future-proof platform with distinct capabilities that enhance deterrence. Its advanced systems will enable true long-range strike with hypersonic weapons housed in new, larger vertical launch systems. Vastly increased power generation, managed by a sophisticated integrated power system with high-capacity energy storage, will support mission-critical directed energy weapons like high-output lasers and electromagnetic railguns, reducing reliance on costly single-use munitions. Furthermore, its advanced naval gunfire offers cost-effective options for strike and defense, and its capacity to embark a fleet command staff enhances survivability by putting commanders closer to the fight. As a flexible command-and-control platform for both manned and unmanned platforms, including the Medium Unmanned Surface Vessel (MUSV), the Battleship can lead a Surface Action Group, integrate with a Carrier Strike Group, or operate autonomously to secure critical sea lanes. To overcome the capacity limits of the Arleigh Burke-class destroyer and the capability compromises of the planned DDG(X), the Battleship is designed specifically to accommodate these advanced weapon systems. The ship's architecture provides the foundational space, weight, power, and cooling for five large weapon stations, enabling the integration of large-format missile launchers, railguns, and high-energy lasers that cannot be incorporated within legacy platforms. The design ensures room for future technological advancements and sends an unmistakable signal of American resolve, inspiring confidence in allies and fear in adversaries.

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

Project 0413 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.

15030045000.0FY25ACTUAL0.0FY26ENACTED585.9FY27REQUEST343.0FY28543.2FY29502.6FY30490.0FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.0
FY2026Enacted0.0
FY2027Request585.9
FY2028Outyear343.0
FY2029Outyear543.2
FY2030Outyear502.6
FY2031Outyear490.0
Inside the project

2 accomplishments / planned programs

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. 1 of them 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$577.6M

In FY 2027, the BBG(X) program will execute the Preliminary Design phase. This phase will mature the Initial Baseline design by developing the initial ship specifications and completing the selection of major system components. The team will focus on accelerating the design timeline through decisive action in support of design…

Read the FY2027 plan →
BBG(X) Test and EvaluationNEW
FY2025 actual$0.0M
FY2026 enacted$0.0M
FY2027 request$8.3M

FY2027 planned work In FY 2027, the BBG(X) Test & Evaluation (T&E) program will begin Live Fire Test & Evaluation (LFT&E) Event and Survivability Assessment M&S execution as well as planning for Developmental T&E (DT&E) and Operational T&E (OT&E) activities. These activities must be completed to ensure systems are properly verified and validated against requirements to support Battleship Initial Operational Capability. General T&E major activities will include standing up the BBG(X) T&E Working-level Integrated Product Team (WIPT) to establish relationships and expectations within the program and holding the initial T&E Requirements Resource Board (TERRB) to ensure the Navy has sufficient resources to execute…

FY2026 to FY2027 change FY 2026 to FY 2027 increased in the amount of $8.276M due to the expanded scope and accelerated schedule. The condensed construction time is in support of the Golden Fleet shipbuilding plan.

Who's building it

Named performers on project 0413

Performers named in the R-3 exhibit under this project. Share is of the project's whole FY2027 R-3 total — the same denominator the program-element split uses, so the two read on one scale and will not sum to 100% when unnamed or government work is in the mix. Budget-justification contract funding, not obligations.

Shipbuilders
$139.7M · 24%
Industry - Digital Engineering
$98.9M · 17%
Gibbs & Cox
$86.8M · 15%
Industry
$70.5M · 12%