What the FY2027 request buys
Verbatim from the R-2A exhibit for project 2228 of PE 0101221N. 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.
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 expanding efforts to integrate the technology into Navigation to support increased mission flexibility - Begin the extension of the Navigation Subsystem's max fixed interval (MFI) through software and CONOPs updates - Begin the enhancement of Fire Control to Missile data transmission to improve throughput capability on the existing OHIO platform's Missile Umbilical and Ships Cabling - Begin the development of a Fire Control cryptographic capability with a Root of Trust to provide interface authentication and data validation for high-consequence systems over Ethernet and Multiwire mediums - Begin the development of a Cubby Adaptor for alternate payloads to leverage the volume normally occupied by the Post Boost Control System (PBCS) Gas Generators - Additional details held at a higher classification level
The requested $24.013 million funding increase from FY 2026 to FY 2027 is required to expand navigation technology programs, enhancing our ability to ensure precise and reliable navigation, particularly when deploying to unmapped or un-surveyed locations. This funding will support the expansion of the NAV/Guidance Integrated Gravity Enhancement effort to enable at-sea calibration of guidance accelerometers. It will also fund the Navigation Sonar System (NSS) Modernization to increase mission flexibility and extend the Navigation Subsystem's Max Fixed Interval (MFI) through software and procedural updates. Collectively, these initiatives provide a significant enhancement to mission flexibility and navigational reliability. Additional details on these programs are held at a higher classification level.
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.
- Gravity Gradiometer: Utilize the gravity gradiometer to reduce assumptions in gravity navigation algorithms, thereby increasing system performance and reducing position error - High Density Array (HDA): Investigate the integration of the HDA into the NAV subsystem to address hydrophone obsolescence - Compression Usage: Modify the existing Fire Control software to allow for the compression of data and the transmission of that compressed data to shipboard SWS components - Data Flexibility: Evaluate the feasibility of incorporating payload hardware-agnostic data transmission algorithms into SWS areas to achieve greater data throughput - Attack Option Flexibility: Assess, formulate, prototype, and evaluate changes to the Aggregate Target Package Execution (ATPE) graphical user interface (GUI) and software configuration to support the aggregation of attack options across multiple command units - Modular Payload Algorithms: Assess, formulate, prototype, and evaluate changes to current trajectory and mission preset modules to enable more rapid implementation of Fire Control and Mission Planning software modifications - Additional details held at a higher classification level
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.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 0.0 |
| FY2026 | Enacted | 10.9 |
| FY2027 | Request | 34.9 |
This activity is 17% of project 2228's FY2027 request and 3.3% of PE 0101221N'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.
6 activities in project 2228
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.