What project 0766 buys
The Surveillance Towed Array Sensor System (SURTASS) project comprises the mobile, tactical arm of the Integrated Undersea Surveillance System (IUSS), providing long range detection and cueing for tactical weapons platforms against both diesel- and nuclear-powered submarines. SURTASS also provides the undersea surveillance necessary to support regional conflicts and sea-lane protection. SURTASS has recent passive and active success against diesel submarines operating in both shallow and deep ocean environments. SURTASS is leveraging existing developments and reducing costs by using Non-Developmental Items and commercial hardware, supporting common Navy Undersea Warfare processing and towed array developments, and increasing operator efficiency through computer-aided detection and classification processing. SURTASS development efforts include Low Frequency Active (LFA)/Compact Low Frequency Active (CLFA) improvements, common IUSS processing, twin-line array development and processing, next generation array developments, improved detection and classification/passive automation to counter quieter threats, integrated active and passive operations, and improved Battle Group support. LFA/CLFA provides an active adjunct capability for IUSS passive and tactical sensors to counter the quieter diesel and nuclear threats of the 2020s and beyond. Improvements include TL-29A/LFA/CLFA integration enhancements, advanced waveforms for littoral/shallow water operations including Doppler sensitive waveforms, and processing algorithms to reduce clutter and reverberation false alarms in shallow water. The Integrated Common Processor (ICP) is a derivative of the Naval Sea Systems Command (NAVSEA) Submarine Acoustic Rapid Commercial Off the Shelf (COTS) Insertion (ARCI) program and is being augmented for IUSS requirements. Together, the LFA/CLFA improvements, TL-29A, and the ICP support the SURTASS Active Improvement Program. Functional improvements to ICP/SURTASS are delivered to the Fleet in software "builds" under the DevSecOps process, while hardware improvements are delivered through the Tech Insertion (TI) process. SURTASS participates in the process by contributing algorithms for consideration, supplying peer group members for review of candidate algorithms, participating in test evolutions, and incorporating improved algorithms into operational systems.
- Product Development
- Support
- Test and Evaluation
- Management Services
Project 0766 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 | 52.1 |
| FY2026 | Enacted | 59.4 |
| FY2027 | Request | 57.4 |
| FY2028 | Outyear | 67.7 |
| FY2029 | Outyear | 70.9 |
| FY2030 | Outyear | 71.2 |
| FY2031 | Outyear | 72.6 |
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. 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.
FY2026 to FY2027 change Decrease of $5.558 million based on reducing scope of work in FY 2027 to fund other Navy priorities.
FY2026 plans — current year The FSS portion of 0766 is classified with details available at a higher classification level.
- Continue Advanced Capabilities development of Artificial Intelligence/Machine Learning algorithms for enhanced human-machine performance; Continue system infrastructure modernization to streamline system development, to provide more flexibility in hardware and to enable for more frequent software updates of software to include…
Read the FY2027 plan →FY2027 planned work - Commence development for Next Generation Surveillance array. - Award contract and begin Engineering Development Model (EDM) build.
FY2026 to FY2027 change The $8.123M increase is the result of directly funding the development of the next generation surveillance array including contract award and EDM build.
FY2027 planned work -Continue product improvement and upgrade efforts for SURTASS/LFA/CLFA systems -Continue development of Cyber Security enhancements -Conduct Pierside and At-Sea T&E of LFA/CLFA enhancements -Conduct Cyber Security evaluation and testing of deployed systems
FY2026 to FY2027 change The $0.600M decrease is the result of reprioritization of funding to development of the next generation surveillance array.
FY2026 plans — current year -Continue product improvement and upgrade efforts for SURTASS/LFA/CLFA systems -Continue development of Cyber Security enhancements -Conduct Pierside and At-Sea T&E of LFA/CLFA enhancements -Conduct Cyber Security evaluation and testing of deployed systems
FY2027 planned work - Continue development of upgraded telemetry components to address component obsolescence. - Continue development of fishing net mitigation solutions and upgrades to reduce potential for array damage from fishing apparatus. - Continue at-sea test and evaluation efforts to demonstrate passive array system hardware and processing enhancements and net mitigation equipment. - Continue evaluation of true fiber optic array technologies and array components, including Twin-line variants of new submarine Long-line arrays for future application to SURTASS. - Continue development of future passive systems to outfit T-AGOS 25 class platforms. - Continue development of replacement technologies for…
FY2026 to FY2027 change The $2.651M decrease is the result of reprioritization of funding to development of the next generation surveillance array.
FY2026 plans — current year - Continue development of upgraded telemetry components to address component obsolescence. - Continue development of fishing net mitigation solutions and upgrades to reduce potential for array damage from fishing apparatus. - Continue at-sea test and evaluation efforts to demonstrate passive array system hardware and processing enhancements and net mitigation equipment. - Continue evaluation of true fiber optic array technologies and array components, including Twin-line variants of new submarine Long-line arrays for future application to SURTASS. - Continue development of future passive systems to outfit T-AGOS 25 class platforms. - Continue development of replacement technologies for…
FY2027 planned work - Continue development efforts for SURTASS Team Trainers for hardware and processing to support new passive and active arrays/sensors, communications and ship equipment.
FY2026 plans — current year - Commence development efforts for SURTASS Team Trainers for hardware and processing to support new passive and active arrays/sensors, communications and ship equipment.
Named performers on project 0766
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.