RDT&E Program Element · President's Budget PB2027

SSBN New Design

PE 0603595N·U.S. Navy·Approp. 1319 — RDT&E·BA4 — Advanced Component Development & Prototypes
FY2027 Request
$331.6M
◆ Development crest → decline
HitchAI read

U.S. Navy funding ramps 19% to a $331.6M request in FY2027, before stepping down 70% across the five-year plan. In the FY2027 defense authorization, the House added 4.5% (to $346.6M); the Senate funded it in full; House appropriators added 2.3% (to $339.1M). Ship Design Contractor-EB leads the industry work.

FY2027 Request
$331.6M
▲ 19% vs FY2026
FY2026 Enacted
$278.3M
▲ 48% vs FY2025
FY2025 Actual
$188.0M
Prior year

Roll-up of 4 projects. Projects are the summable leaves — the PE total is their sum, never added to it.

For fiscal year 2027, the U.S. Navy is requesting $331.6M for SSBN New Design under RDT&E program element 0603595N, up 19% over FY2026.

Funding trajectory

Funding profile, 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.

1002003000188.0FY25ACTUAL278.3FY26ENACTED331.6FY27REQUEST345.1FY28247.2FY29142.3FY3098.8FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual188.0
FY2026Enacted278.3
FY2027Request331.6
FY2028Outyear345.1
FY2029Outyear247.2
FY2030Outyear142.3
FY2031Outyear98.8
Where it sits

Acquisition lifecycle

This program is funded in RDT&E Budget Activity 4 — Advanced Component Development & Prototypes.

Complete
Research
BA 1–2
Complete
Advanced Technology
BA 3
Current
Prototyping
BA 4
Later
Development & Fielding
BA 5–7
Inside the program element

4 projects roll up into PE 0603595N

Projects are the summable leaves — the PE total is their sum, never added to it. Program elements and projects carry the full five-year plan; activities stop at the budget year. This PE moves 19% overall, which can hide much larger swings below.

Congressional action

Congressional marks

Committee marks on the FY2027 request. Adds and cuts are reconciled in conference before they become law.

RequestPresident's Budget
$331.6M
House NDAA (HASC)HASC
$346.6M +$15.0M · +4.5%
Senate NDAA (SASC)SASC
$331.6M full · +$0
House Approps (HAC-D)HAC_D
$339.1M +$7.5M · +2.3%
▲ $15.0M chamber gap — unresolved as of 2026-07-27. These are FY2027 authorization marks (NDAA); appropriations and the conference agreement may differ.
Who's building it

Where the FY2027 request goes

Performers named in the R-3 exhibit, resolved into industry, government-lab, and unspecified shares. Budget-justification contract funding, not obligations.

Ship Design Contractor-EB
$179.6M · 54%
Product Development · CPFF
LMS
$11.8M · 3.6%
Product Development · CPFF
Where FY2027 funding flowsShare$M
Industry primes67%220.9
Government labs & warfare centers28%92.5
Other / unspecified5.5%18.2
FY2027 request100%331.6
See Ship Design Contractor-EB's full federal contract ledger members
Program detail

Mission & acquisition strategy

The COLUMBIA Submarine Class Program (previously the OHIO Replacement Class) is developing the next generation sea-based strategic deterrent. The funding applies to the design, systems engineering, prototyping, and vendor qualification activities needed to execute the schedule for Common Missile Compartment (CMC) design, whole ship design, and component technologies development for the next generation U.S. ballistic missile submarine (SSBN). This RDT&E program supports cooperation with the United Kingdom (UK) to maintain strategic deterrence, based on a single effort to develop a CMC as agreed by the UK Secretary of State for Defense and the U.S. Secretary of Defense in 2009.

The Common Missile Compartment (CMC) will be designed and developed to support the U.S. and UK in development of the COLUMBIA and DREADNOUGHT SSBN programs enabling a common U.S.-UK CMC and maximizing the benefit of the ongoing U.S.-UK partnership in strategic deterrence. The COLUMBIA Class Program RDT&E efforts will support the design, construction and operations & support portions of the program. RDT&E efforts will be performed by Navy laboratories, shipyards, private industry, and University Affiliated Research Centers.

Project 3220, 3441, 3440, 9999 — COLUMBIA Class Submarine Development
  • Product Development
  • Management Services
Ask Hitch

Ask this program element

Answers are generated from the figures on this page — the FY2027 justification exhibits and the marks tracked above — and nothing else is consulted. Confirm any figure against the cited exhibit before you use it externally.

H
Questions this page can answer
How does the FY2027 request compare with FY2026, and what does the five-year plan show?What did the FY2027 NDAA committees do to this request?Which project inside PE 0603595N is growing fastest, and which is shrinking?How is the FY2027 request split between industry and government performers?

This page carries the budget justification and the NDAA marks — nothing else. For what Ship Design Contractor-EB has actually been obligated, the ledger is at hitchintel.com/vendors; for live solicitations, hitchintel.com/opportunities. Both are member surfaces.

Provenance

Cite this page

Sources
FY2027 Department of the Navy RDT&E Budget Justification · Exhibits R-2 / R-3 · PE 0603595N (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "SSBN New Design (PE 0603595N)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/0603595N
Machine access
Markdown twin /programs/0603595N.md · MCP mcp.hitchintel.combudget_get_program_element, budget_get_cong_marks
FY2027 Request
$256.1M
▲ 26% vs FY2026
FY2026 Enacted
$202.8M
▲ 76% vs FY2025
FY2025 Actual
$115.2M
Prior year

COLUMBIA Class Submarine Development — one RDT&E project inside PE 0603595N. Congressional marks are recorded on the program element, not on a project.

Project 3220 — COLUMBIA Class Submarine Development — requests $256.1M in FY2027, 77% of the $331.6M requested for program element 0603595N. Year over year it grows 26% against FY2026.

Funding trajectory

Project 3220 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.

501001502002500115.2FY25ACTUAL202.8FY26ENACTED256.1FY27REQUEST272.7FY28173.4FY2967.4FY3022.4FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual115.2
FY2026Enacted202.8
FY2027Request256.1
FY2028Outyear272.7
FY2029Outyear173.4
FY2030Outyear67.4
FY2031Outyear22.4
Inside the project

4 accomplishments / planned programs

The R-2A exhibit. Activities carry the prior, current and budget year only — no five-year plan — and they are descriptive: coverage is partial and they do not always add back to the project, so count them, never total them. Opening lines only here — the full year-by-year narrative is on the project page.

FY2025 actual$37.0M
FY2026 enacted$138.7M
FY2027 request$179.6M

Specific planned construction efforts for FY 2027 include: - Continued fabrication of Missile Tubes and Strategic Weapons Support System (SWSS) kits. - Continued Lead Ship Construction, which includes manufacture of the MTM for lead ship, and integration and test of SWSS systems and Final Operating Capability (FOC) for the land-based…

Read the FY2027 plan →
FY2025 actual$46.5M
FY2026 enacted$44.0M
FY2027 request$42.9M

Combat Systems: - Initiate GFE find, fix, and repair activity for the Tech Insertion 2024 NPES upgrade configuration installation on the SSBN 827 Command and Control System Module (CCSM) during the CCSM Off-hull and Assembly Test Site (COATS) segment of construction. - Bench test NPES level suitability performance improvements associated…

Read the FY2027 plan →
FY2025 actual$31.6M
FY2026 enacted$10.6M
FY2027 request$18.2M

- Complete Verification and Validation activities for SIM II/DWAF in support of IOT&E . - Commence post-delivery trials and integrated/operational testing when CLB is delivered.

Read the FY2027 plan →
FY2025 actual$0.0M
FY2026 enacted$9.5M
FY2027 request$15.4M

- Continue planning activities for the first of class Demonstration of Shakedown Operations (DASO) Test and Evaluation event required to meet the COLUMBIA Program Test and Evaluation Master Plan (TEMP) requirements. Efforts include detailed DASO test planning development, continued test documentation development, mission operations…

Read the FY2027 plan →
Project 3220 — every activity in full →
Who's building it

Named performers on project 3220

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.

Ship Design Contractor-EB
$179.6M · 70%
LMS
$11.8M · 4.6%
GDMS
$1.2M · 0.5%
SSP
$0.6M · 0.2%
Project detail

What project 3220 buys

The COLUMBIA Submarine Class Program (previously the OHIO Replacement Class) is developing the next generation sea-based strategic deterrent. The funding applies to the design, systems engineering, prototyping, and vendor qualification activities needed to execute the schedule for Common Missile Compartment (CMC) design, whole ship design, and component technologies development for the next generation U.S. ballistic missile submarine (SSBN). This RDT&E program supports cooperation with the United Kingdom (UK) to maintain strategic deterrence, based on a single effort to develop a CMC as agreed by the UK Secretary of State for Defense and the U.S. Secretary of Defense in 2009. At the COLUMBIA Program Semi-Annual Interim Progress Review (IPR) held on August 30, 2021, the USD (A&S) Milestone Decision Authority (MDA) directed COLUMBIA to be funded to the program baseline, including Integrated Enterprise Plan (IEP) funding as reflected in this budget submission. The COLUMBIA program strategy is to leverage the re-use of existing Submarine system designs (as applicable), focus on lifecycle Total Ownership Cost (TOC) affordability, and meet the military requirements established for this SSBN to achieve mission success in a challenging environment. The requested funding levels provide for the Technology Development, Design, Engineering, and Integration efforts necessary to support the COLUMBIA Class SSBN lead ship construction along with continued development and design support for construction of the class. A Contract Modification for ongoing design/advance construction efforts was awarded on 22 Jun 2020, which also included the Build I Option for the First Two Ships. This was a Pre-Priced Option for the two ships, SSBN 826 and SSBN 827, and associated design/support efforts. This was a modification of the current Integrated Product & Process Development (IPPD) contract (N00024-17-C-2117) and is in line with the program's approved Acquisition Strategy. The program received authorization of SSBN 826 in FY21 (funded with three years of incremental funding in FY21-23), SSBN 827 in FY24 (funded with two years of incremental funding in FY24-25), and is requesting SSBN 828 in FY26 (funded with two years of incremental funding in FY26-27). The RDT&E efforts support this plan. The following key activities support the COLUMBIA Class SSBN Program: 1.

R-3 lines of work
  • Product Development
  • Management Services
FY2027 Request
$53.5M
▲ 17% vs FY2026
FY2026 Enacted
$45.8M
▼ 5.9% vs FY2025
FY2025 Actual
$48.6M
Prior year

SBSD Technology Refresh — one RDT&E project inside PE 0603595N. Congressional marks are recorded on the program element, not on a project.

Project 3441 — SBSD Technology Refresh — requests $53.5M in FY2027, 16% of the $331.6M requested for program element 0603595N. Year over year it grows 17% against FY2026.

Funding trajectory

Project 3441 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.

2550048.6FY25ACTUAL45.8FY26ENACTED53.5FY27REQUEST50.4FY2851.3FY2952.2FY3053.2FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual48.6
FY2026Enacted45.8
FY2027Request53.5
FY2028Outyear50.4
FY2029Outyear51.3
FY2030Outyear52.2
FY2031Outyear53.2
Inside the project

2 accomplishments / planned programs

The R-2A exhibit. Activities carry the prior, current and budget year only — no five-year plan — and they are descriptive: coverage is partial and they do not always add back to the project, so count them, never total them. Opening lines only here — the full year-by-year narrative is on the project page.

FY2025 actual$30.9M
FY2026 enacted$22.5M
FY2027 request$21.4M

- Continue to expand the supplier base to address obsolescence for the COLUMBIA Submarine Class. - Finalize software sustainment plans for COLUMBIA Class CFE systems. - Implement initial tech refresh design work on selected systems.

Read the FY2027 plan →
FY2025 actual$17.8M
FY2026 enacted$23.2M
FY2027 request$32.1M

Ship Control, Hydrodynamics and Shock: - Continue simulation development focus on refining operational boundaries. - Support for SSM development. Propulsor and Shafting: - Continue analysis of data collected during modal testing of as-built propulsor components and assemblies to inform and improve computational models. - Update…

Read the FY2027 plan →
Project 3441 — every activity in full →
Who's building it

Named performers on project 3441

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.

NRL
$3.5M · 6.6%
WHS
$3.4M · 6.3%
Progeny
$1.5M · 2.8%
BAE
$1.2M · 2.3%
Project detail

What project 3441 buys

This project encompasses ship system development, coordination, and management efforts for the COLUMBIA Class Submarine Technology Insertion Program and Technology Refresh Program over the life cycle. The purpose of the Technology Insertion Program is to efficiently upgrade performance of all hulls by virtue of improvements in HM&E ship systems. The purpose of the Technology Refresh Program is to develop, coordinate, and manage technical refresh plans for ship systems reliant on Commercial off the Shelf (COTS) technology that have short product life cycles to ensure materiel solutions for obsolescence issues. Additionally, this project will support mitigation of obsolescence issues for HM&E components that are not included in systems that have not historically had a formal Tech Refresh plan. Technology development implementation and logistics for developmental items, and COLUMBIA Class test & evaluation for these items are also included. Testing of components and systems will be used to inform performance predictions for later ships in the class and determine if design changes are needed. Technologies developed in this program will be considered for applicability to the VIRGINIA Program for commonality opportunities. The thrust of these efforts will be to maintain required technical performance and materiel readiness of COLUMBIA SSBNs in order to support the Sea Based Strategic Deterrence (SBSD) mission.

R-3 lines of work
  • Product Development
FY2027 Request
$22.0M
▲ 15% vs FY2026
FY2026 Enacted
$19.1M
▼ 10% vs FY2025
FY2025 Actual
$21.3M
Prior year

SBSD Obsolescence — one RDT&E project inside PE 0603595N. Congressional marks are recorded on the program element, not on a project.

Project 3440 — SBSD Obsolescence — requests $22.0M in FY2027, 6.6% of the $331.6M requested for program element 0603595N. Year over year it grows 15% against FY2026.

Funding trajectory

Project 3440 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.

021.3FY25ACTUAL19.1FY26ENACTED22.0FY27REQUEST21.9FY2822.5FY2922.7FY3023.2FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual21.3
FY2026Enacted19.1
FY2027Request22.0
FY2028Outyear21.9
FY2029Outyear22.5
FY2030Outyear22.7
FY2031Outyear23.2
Inside the project

1 accomplishment / planned program

The R-2A exhibit. Activities carry the prior, current and budget year only — no five-year plan — and they are descriptive: coverage is partial and they do not always add back to the project, so count them, never total them. Opening lines only here — the full year-by-year narrative is on the project page.

FY2025 actual$21.3M
FY2026 enacted$19.1M
FY2027 request$22.0M

- Complete NPES whole ship testing DOCKSIDE. - Complete NPES/SWS integration testing DOCKSIDE. - Incorporate laboratory proven NPES re-architecture features in TI-28 configuration GFI design changes.

Read the FY2027 plan →
Project 3440 — every activity in full →
Who's building it

Named performers on project 3440

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.

GDEB
$6.7M · 30%
Lockheed Martin
$6.4M · 29%
NIWC LANT
$2.6M · 12%
Progeny Systems
$1.4M · 6.3%
Project detail

What project 3440 buys

This project provides the engineering development and program management effort required to sustain Non-Propulsion Electronic Systems (NPES) outfitting of each ship of the COLUMBIA Class throughout the duration of the 12-ship construction program. Non-recurring engineering activity is required to ensure specification compliant components are available for procurement as fleet common sub-systems, which evolve over the life of the program due to either competitive selection of new suppliers, component obsolescence replacement, increased technical performance, or improvements in reliability. Non-recurring engineering activity is needed to perform platform integration of the components, and software modification to accommodate electronic data exchange, COLUMBIA unique submarine environment qualification, and update of all logistics products.

R-3 lines of work
  • Product Development
FY2027 Request
$0.0M
▼ 100% vs FY2026
FY2026 Enacted
$10.6M
▲ 267% vs FY2025
FY2025 Actual
$2.9M
Prior year

Congressional Adds — one RDT&E project inside PE 0603595N. Congressional marks are recorded on the program element, not on a project.

Project 9999 — Congressional Adds — requests $0.0M in FY2027, 0.0% of the $331.6M requested for program element 0603595N. Year over year it falls 100% against FY2026.

Funding trajectory

Project 9999 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.

02.9FY25ACTUAL10.6FY26ENACTED0.0FY27REQUEST0.0FY280.0FY290.0FY300.0FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual2.9
FY2026Enacted10.6
FY2027Request0.0
FY2028Outyear0.0
FY2029Outyear0.0
FY2030Outyear0.0
FY2031Outyear0.0
Project detail

What project 9999 buys

Congressional Add supports shipyard and ship repair workforce training.

R-3 lines of work
  • Product Development