What project 2228 buys
Trident II D5 Modernization (D5LE2): The Trident II D5LE2 program is crucial for modernizing the U.S. nuclear triad's submarine-launched ballistic missile (SLBM) leg, as the current D5LE system on OHIO-class submarines will become obsolete for the COLUMBIA class through 2084. D5LE2 will address aging components and evolving peer threats by providing a modernized SLBM system with comparable range and accuracy, enhanced adaptability and resilience, and key upgrades in architecture, avionics, guidance, flight structures, and post-boost controls, while leveraging existing viable components and prioritizing critical technologies like radiation-hardened electronics and advanced guidance systems within a modular architecture to ensure a credible, survivable, and adaptable sea-based deterrent for decades. Threat & Risk-Informed Advanced Development (TRIAD): The Threat & Risk-Informed Advanced Development program leverages technological advancements, coordinates advanced research across stakeholders, and collaborates with government and industry partners to identify and outpace future threats to the nation's Sea-based Strategic Deterrent. Specific RDT&EN investments will aim to (1) preserve Trident II D5LE missile strategic weapon system (SWS) survivability against current and future threats; (2) respond to warfighter demands at the speed of relevance by enhancing effectiveness and capabilities in accordance with USSTRATCOM and Navy priorities; and (3) ensure the sustainment of the SWS demonstrated performance through 2084. Between 1955 and 1990, consistent investment in Research and Development (R&D) fueled the success of the Strategic Weapons System (SWS) through a series of development and production programs. However, unlike previous transitions between SLBM systems (A1, A2, A3, C3, C4), development of a Trident D5 follow-on was not immediately initiated. This resulted in a significant decline in R&D funding for submarine-launched ballistic missile (SLBM) systems in the early 1990s. Additionally as the U.S. shifted towards a nuclear force sustainment paradigm, investments in advanced delivery system capabilities to counter emerging threats were curtailed. Consequently, the pipeline for developing cutting-edge technologies has weakened considerably.
- Product Development
Project 2228 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.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 51.4 |
| FY2026 | Enacted | 185.2 |
| FY2027 | Request | 210.5 |
| FY2028 | Outyear | 215.6 |
| FY2029 | Outyear | 205.0 |
| FY2030 | Outyear | 186.2 |
| FY2031 | Outyear | 190.0 |
6 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. 4 of them describe FY2027 work in enough detail to have their own page; the rest are shown here in full. Coverage is partial across the corpus, so count activities, never total them.
Funding for mission effectiveness is allocated across both unclassified and classified efforts. The unclassified portion, totaling $38.769 million, includes the following tasks: - Expand and continue efforts on Halcyon: Radar and algorithm integration for upcoming test flight - Continue efforts on Non-Line of Sight free-space optical…
Read the FY2027 plan →All efforts will continue from FY 2026 in addition to: - Begin the expansion of NAV/Guidance Integrated Gravity Enhancement efforts, including temporary alteration (TEMPALT) for Capability III, to calibrate guidance accelerometers at sea or at un-surveyed port locations - Begin the modernization of the Navigation Sonar System (NSS) by…
Read the FY2027 plan →All efforts will continue from FY 2026 in addition to: - Begin the development of a Compact Boost Rocket Motor Chemical Sensor (CBRMCS) for advanced health monitoring to collect data and infer stabilizer content from the propellant in a solid rocket motor assembly - Begin enhancements for Missile Segment Mating in the Missile Assembly…
Read the FY2027 plan →- Building upon our FY 2026 foundation, expand the utilization of high fidelity simulation environments and integrated threat system models to evaluate the performance of current and emerging threats against a broader spectrum of potential technologies considered for maturation. - As part of the Transit Protection Program (TPP), begin…
Read the FY2027 plan →FY2027 planned work Continued efforts from Project 3158: Integrated Nuclear Weapon Security System (INWSS): - Continue the development and deployment of the Electronic Security System (ESS) Alarm Control and Display (AC&D) Integration to Bangor for Limited Area security, based on FY 2026 lessons learned - Continue the Development and Testing for the ESS to support Common Operational Picture (COP) integration - Continue research and development of Enhanced Screening Capabilities with technologies targeted at improving the effectiveness of the guard force's ability to screen personnel and vehicles - Continue the development, test, and evaluation of the Common Operational Picture (COP) to enhance tactical…
FY2026 to FY2027 change The $2.621 million increase from FY 2026 to FY 2027 realigns funding from Project 3158. This funding enhances the INWSS through a common operational picture and improved guard force capabilities. It also bolsters transit protection by adapting proven active defense systems for vessel security, while continuing the foundational research, development, test, and evaluation (RDT&E) needed to mature and improve counter-unmanned and waterside security systems.
FY2026 plans — current year FY 2026 funding executed out of Project 3158: Integrated Nuclear Weapons Security Systems Development.
FY2026 to FY2027 change As planned, this program's RDTEN funding ends in FY 2026 following the successful completion of its development activities. The D5LE2 program has now been fully transferred to the WPN appropriation for its Engineering and Manufacturing Development phase.
FY2026 plans — current year Trident II D5 Modernization (D5LE2): The RDT&E efforts listed for D5LE2 system level requirements and architecture efforts will complete in FY 2026 with stable technical baselines for subsystem development and procurement to execute going forward. System Level Studies and Architecture Development efforts: Refinement of system requirements and architecture, and accuracy and performance assessments continue in conjunction with subsystem technology development and design. Technology Investments: SLBM technology investment areas will complete the maturation of the Common Parts Database with parts characterization testing of prototype parts, Continue Development of Radiation Hardened Test…
Named performers on project 2228
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.