What project MX46 buys
This project provides radar capability development, operations, and support for the SBX radar and its three major sub-systems: self-propelled vessel, X-Band Radar (XBR), and communications network.
- Product Development
- Support
Project MX46 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 | 186.4 |
| FY2026 | Enacted | 161.1 |
| FY2027 | Request | 264.4 |
| FY2028 | Outyear | 325.6 |
| FY2029 | Outyear | 416.4 |
| FY2030 | Outyear | 394.1 |
| FY2031 | Outyear | 324.8 |
4 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.
- Complete initial hardware design of the next generation server architecture required to counter the increased threat vector. - Deliver XBR software build 4.4 formal release. - Initiate MBSE by creating initial models for SBX radar behavior, antenna mount, and functional representation validation. - Initiate SBX GaN TRIMM upgrades to…
Read the FY2027 plan →FY2027 planned work - Initiate required maintenance tasks during the major 2027 in-port maintenance period.
FY2026 to FY2027 change Increase from FY 2026 to FY 2027 provides critical maintenance tasks during the 2027 in-port maintenance period.
FY2026 plans — current year - Completion of required maintenance tasks during the major 2025 in-port maintenance period.
FY2027 planned work - No funding is requested in FY 2027.
FY2026 plans — current year - No funding is requested in FY 2026.
Named performers on project MX46
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.