# Project 0921 — NAVSTAR GPS Equipment

**Program element:** 0604280N — JT Tactical RADIO System (JTRS)  
**Project:** 0921  
**Component:** U.S. Navy  
**Appropriation:** 1319 — RDT&E, Navy  
**Budget Activity:** 5 — System Development & Demonstration  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604280N/0921  
**Parent:** https://hitchintel.com/programs/0604280N

## Summary

Project 0921 — NAVSTAR GPS Equipment requests $53.7M in FY2027, 13% of the $409.3M requested for program element 0604280N, up 9.6% on FY2026. 4 R-2A activities decompose the request. NIWC PAC, NAWC PAX is the largest named R-3 performer at $20.0M, 37% of the project's FY2027 R-3 total.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 61.0 |
| FY2026 | Enacted | 49.0 |
| FY2027 | Request | 53.7 |
| FY2028 | Outyear | 99.6 |
| FY2029 | Outyear | 105.3 |
| FY2030 | Outyear | 102.4 |
| FY2031 | Outyear | 104.5 |

> Estimate types are not summed. This project is one leaf of PE 0604280N; the PE total is the sum of its projects, never added to them.

## What project 0921 buys

The funding increase of $4.688M from FY 2026 to FY 2027 is due to the commencement of LN-251M and ANAV-3M interim solution testing for E-2D, P-8, F/A-18E/F, and EA-18G platforms. Navigation Satellite Timing & Ranging (NAVSTAR) GPS project (0921) encompasses the Navy's efforts to pace the growing threat to GPS Navigation through the fielding of new GPS receivers, Anti-Jam (AJ) Antennas, and Assured Positioning Navigation and Timing (A-PNT) technologies across all Navy platform types. NAVSTAR GPS is a group of A-PNT systems that provides authorized users with secure, worldwide, all weather, three dimensional position, velocity, and precise time data. NAVSTAR GPS provides A-PNT capability to Command, Control, Communications, Computer, Intelligence, Surveillance and Reconnaissance (C4ISR) and combat systems in standalone and networked architectures throughout air and maritime domains. This project is comprised of four distinct efforts: Sea Navigation Warfare (NAVWAR), GPNTS, Air NAVWAR and GPS Modernization. Sea NAVWAR provides AJ antennas and Global Positioning System (GPS) - Based Positioning, Navigation and Timing (PNT) Service (GPNTS) provides GPS Receivers and A-PNT technology to surface platforms, and Air NAVWAR provides AJ antennas and GPS Modernization provides GPS receivers to air platforms. Research, Development, Testing and Evaluation (RDT&E) funding is used to perform all the non-recurring GPS related development, integration, and testing efforts for surface ships and aircraft in support of NAVSTAR GPS. The Air and Sea NAVWAR programs provide continued access to GPS information in a denied or impeded electronic environment. Development efforts for both programs provide improvements to various platform type antennas and ensure compatibility with the new GPS M-Code signal. The Air NAVWAR program continues integration efforts using GPS Antenna System (GAS-1), Advanced Digital Antenna Production (ADAP), and other AJ antennas on air platforms while investigating smaller AJ antennas for space constrained platforms and aircraft with unique requirements. The Sea NAVWAR program integrates AJ antennas onto surface and subsurface platforms. The Sea NAVWAR program will continue to research the viability and development of enhanced AJ techniques and technologies.

**R-3 lines of work:** Product Development; Support; Test and Evaluation; Management Services.

## Named R-3 performers

| Performer | $M | Share of this project's FY2027 R-3 total |
|---|---|---|
| NIWC PAC, NAWC PAX | 20.0 | 37% |
| Northrup Grumman | 12.1 | 22% |
| Boeing | 7.4 | 14% |
| NIWC PAC, NAWC | 4.3 | 8.1% |

> Budget-justification contract funding, not obligations. Shares need not reach 100% — unnamed and government work is in the denominator.

## Activities (R-2A) — 4

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| Global Positioning System (GPS) Modernization | 55.1 | 43.5 | 50.4 | +16% | [a3](https://hitchintel.com/programs/0604280N/0921/a3) |
| Air Navigation Warfare (NAVWAR) | 3.6 | 3.4 | 1.3 | −63% | — |
| Sea Navigation Warfare (NAVWAR) | 1.1 | 1.1 | 1.0 | −3% | — |
| Global Positioning System (GPS) - Based Positioning, Navigation and Timing (PNT) Service (GPNTS) | 1.2 | 1.1 | 1.0 | −3% | — |

> Activities carry the prior, current and budget year only — no five-year plan. In the request year they partition this project exactly; in earlier years they can under-cover it.

### Global Positioning System (GPS) Modernization

Continue Lab/Ground/Flight Testing on MH-60R/S for LN-100M. Continue Accurate Navigation System - 3 Modernization (ANAV-3M) development for F/A-18E/F and EA-18G. Continue lab/ground/flight/weapons testing of Accurate Navigation System - 3 Modernization (ANAV-3M) on F/A-18E/F and EA-18G. Complete Statement of Requirements (SOR) and begin…

Full year-by-year narrative: https://hitchintel.com/programs/0604280N/0921/a3

### Air Navigation Warfare (NAVWAR)

**FY2027 planned work.** Continue to support Assured-Positioning Navigation and Timing (A-PNT) efforts by working with Navy Air platforms on navigation requirements and coordinating with surface Navy platforms to leverage synergies including collaboration with Office of Naval Research (ONR) to fund Common Application Space (CAS) research and development efforts in the mission capability space allowing for Science and Technology (S&T) efforts that paces the threat in Naval Air platforms and bridges programmatic silos. Continue to provide subject matter expertise to various platforms (including MQ-4C, MQ-25A, F/A-18C/D) as they consider various AJ solutions.

**FY2026 to FY2027 change.** $2.158M reduction from FY 2026 to FY 2027 is due to completion of the MAGNA-I Technical Data Package and Fleet Release for the UH-1Y and AH-1Z platforms.

**FY2026 plans — current year.** Continue to support Assured-Positioning Navigation and Timing (A-PNT) efforts by working with Navy Air platforms on navigation requirements and coordinating with surface Navy platforms to leverage synergies including collaboration with Office of Naval Research (ONR) to fund Common Application Space (CAS) research and development efforts in the mission capability space allowing for Science and Technology (S&T) efforts that paces the threat in Naval Air platforms and bridges programmatic silos. Continue to provide subject matter expertise to various platforms (including MQ-4C, MQ-25A, F/A-18C/D) as they consider various AJ solutions. Complete fleet release development for the MAGNA-I on AH-1Z and UH-1Y platforms. Commence fielding for the MAGNA-I on AH-1Z and UH-1Y platforms.

### Sea Navigation Warfare (NAVWAR)

**FY2027 planned work.** Increment 2 Advanced Digital Antenna Production (ADAP) antenna: Continue government oversight, system engineering, logistics, contracts, and programmatic management efforts for Increment 2 Advanced Digital Antenna Production (ADAP) to include assessment of new Anti-Jam (AJ) capabilities and technologies. Continue investigation of enhanced AJ capabilities for integration into existing Sea Navigation Warfare (NAVWAR) antenna systems. Continue technology developmental efforts with industry to mature technical base for next-generation AJ antenna. Continue to evaluate ADAP with FPGA prototypes

**FY2026 to FY2027 change.** No significant changes.

**FY2026 plans — current year.** Increment 2 Advanced Digital Antenna Production (ADAP) antenna: Continue government oversight, system engineering, logistics, contracts, and programmatic management efforts for Increment 2 Advanced Digital Antenna Production (ADAP) to include assessment of new Anti-Jam (AJ) capabilities and technologies. Continue investigation of enhanced AJ capabilities for integration into existing Sea Navigation Warfare (NAVWAR) antenna systems. Continue technology developmental efforts with industry to mature technical base for next-generation AJ antenna. Evaluate ADAP with FPGA prototypes

### Global Positioning System (GPS) - Based Positioning, Navigation and Timing (PNT) Service (GPNTS)

**FY2027 planned work.** Support NoGAPSS Follow-On Test & Evaluation (FOT&E) for GPNTS SW baseline, including Time and Frequency Component (TFC), Automated Celestial Navigation System (ACNS), Wideband Anti-Jam Modem System (WAMS) capability to provide Two Way Satellite Time Transfer (TWSTT). Support United States Space Force MGUE Inc 1 Operational Test Readiness Reviews for Follow-On Test & Evaluation (FOT&E). Continue software defect resolution with software vendor.

**FY2026 to FY2027 change.** No significant changes.

**FY2026 plans — current year.** Continue and complete efforts to develop and test a GPNTS system capable of hosting the Automated Celestial Navigation System (ACNS) below deck hardware. Effort is in direct support of the NoGAPSS FNC. Conduct and complete preparation for the required Follow-on Operational Test and Evaluation (FOT&E) in support of NoGAPSS capability. Continue software defect resolution with software vendor in support of Full Operational Capability (FOC). Support United States Space Force MGUE Inc 1 Operational Test Readiness Reviews for Follow-On Test & Evaluation

## What is NOT on this page

Congressional marks, the R-2 mission description and acquisition strategy, the industry vs government split of the whole request, and related program elements are recorded at **program-element** grain — an NDAA mark lands on a PE, never on a project. They are at https://hitchintel.com/programs/0604280N.

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0604280N project 0921 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0604280N")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*