# Lower Tier Air Missile Defense (LTAMD) Sensor — Program Element 0604114A

**Program element:** 0604114A  
**Component:** U.S. Army  
**Appropriation:** 2040 — RDT&E, Army  
**Budget Activity:** 4 — Advanced Component Development & Prototypes  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604114A

## Summary

U.S. Army funding falls 16% to a $162.1M request in FY2027 (down from a FY2026 peak). In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators funded it in full. RTX / Raytheon leads the industry work.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 122.8 |
| FY2026 | Enacted | 192.0 |
| FY2027 | Request | 162.1 |
| FY2028 | Outyear | 153.3 |
| FY2029 | Outyear | 129.3 |
| FY2030 | Outyear | 139.1 |
| FY2031 | Outyear | 140.3 |

> Estimate types are not summed — the profile mixes actuals, enacted law, the request, and outyear projections.

## Congressional marks (FY2027)

| Stage | Marked ($M) | Change ($M) |
|---|---|---|
| Request | 162.1 | — |
| House NDAA (HASC) | 162.1 | +0.0 |
| Senate NDAA (SASC) | 162.1 | +0.0 |
| House Approps (HAC-D) | 162.1 | +0.0 |

> FY2027 NDAA authorization marks, as of 2026-07-27. Not appropriations or final law.

## Projects (1)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| EX2 | Lower Tier Air Missile Defense (LTAMD) Capability | 122.8 | 192.0 | 162.1 | −16% |

> Projects are the summable leaves: the program element total is their sum, never added to it.

### Project EX2 — Lower Tier Air Missile Defense (LTAMD) Capability

This funding line is directly aligned to the Army Air and Missile Defense Modernization Priority. The LTAMDS Radar Set (RS) replaces the baseline Patriot RS (AN/MPQ-65A) in an Integrated Air and Missile Defense Battle Command System (IBCS) enabled Patriot Battalion mitigating risk associated with threat advances and decreases Operations and Support (O&S) costs due to growing obsolescence. Additionally, the LTAMDS RS capability maximizes the inherent PAC-3 Missile Segment Enhancement (MSE) Interceptor capabilities to engage threats at greater ranges addressing critical capability gaps, providing modernized technology, and increasing reliability and maintainability. The Lower Tier Air Missile Defense Sensor (LTAMDS) is the Army's premier next generation radar intended to sense and track Tactical Ballistic Missiles and Air Breathing Threats; expand the lower tier air and missile defense battle space and provide 360-degree sensing capability, surveillance, and fire control quality data. The FY 2027 request for LTAMDS includes $162.074 million to enhance capability through LTAMDS Continuous Integration and Continuous Delivery (CI/CD) of software and hardware, complete LTAMDS Initial Operational Test & Evaluation (IOT&E) events, and further Electronic Attack/Electronic Protect (EA/EP) capability. Major LTAMDS CI/CD efforts include tactical software development, modeling and simulation, integration, and testing to increase overall LTAMDS capability against novel and stressing threats, thus providing the war fighter a leading advantage in a contested environment. Combat Identification (CID) / Discrimination Updates: This includes CID development and upgrades to improve radar classification, discrimination, and optimization of multi-function capabilities to enhance performance against current and emerging threats in stressing environments. Upgrades play a critical role in increasing operational effectiveness by providing the war fighter enhanced command and control, effective resource allocation measures, and improved situational awareness. Advanced Threat: LTAMDS will continue to counter adversary threat evolution in complexity, capability, and capacity in simultaneous combatant commands. This development effort is required to continue to provide over match radar capability.

**Named R-3 performers** (share of this project's FY2027 R-3 total, so they need not reach 100%)**:** RTX / Raytheon (74.3, 46%), RDEC, SED, WSMR- T&E Support (25.4, 16%), Systems Engineering and Technical Assist (7.8, 4.8%).

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Lower Tier Missile Defense Sensor | 122.8 | 192.0 | 162.1 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

## Where the FY2027 request goes

| Category | Share | $M |
|---|---|---|
| Industry primes | 66% | 107.5 |
| Government labs & warfare centers | 7.5% | 12.1 |
| Other / unspecified | 26% | 42.4 |

**Top named industry performers:** RTX / Raytheon ($74.3M, 46%), RDEC, SED, WSMR- T&E Support ($25.4M, 16%), Systems Engineering and Technical Assist ($7.8M, 4.8%).

> R-3 exhibit contract funding, not USAspending obligations.

## Mission & acquisition strategy

This funding line is directly aligned to the Army Air and Missile Defense Modernization Priority. The LTAMDS Radar Set (RS) replaces the baseline Patriot RS (AN/MPQ-65A) in an Integrated Air and Missile Defense Battle Command System (IBCS) enabled Patriot Battalion mitigating risk associated with threat advances and decreases Operations and Support (O&S) costs due to growing obsolescence. Additionally, the LTAMDS RS capability maximizes the inherent PAC-3 Missile Segment Enhancement (MSE) Interceptor capabilities to engage threats at greater ranges addressing critical capability gaps, providing modernized technology, and increasing reliability and maintainability.

On 25 September 2018, the Army Acquisition Executive (AAE) approved the execution of the LTAMDS Middle Tier Acquisition (MTA) (Sec. 804) for rapid prototyping. The Army conducted a Sense-Off in 3Q FY 2019 with multiple vendors to demonstrate advanced sensor capabilities with a follow-on competitive source selection informing the LTAMDS Product Office Other Transaction Authority (OTA) award to a single vendor. In 1Q FY 2020, Raytheon was selected to deliver six (6) prototypes to support USG Developmental and Operational testing in support of Milestone C. LTAMDS entered the Major Capability Acquisition Pathway at MS C in FY25. LTAMDS Product Office will conclude an IOTE in FY 2027 which will inform a Full Rate Production decision projected for FY28.

## Related program elements

- [0607865A — Patriot Product Improvement](https://hitchintel.com/programs/0607865A) (Army)
- [0605520M — Marine CORPS AIR Defense Weapons SYS](https://hitchintel.com/programs/0605520M) (Navy)
- [0604604A — Medium Tactical Vehicles](https://hitchintel.com/programs/0604604A) (Army)
- [0304797N — (u)undersea Artificial Intel/machine Learning](https://hitchintel.com/programs/0304797N) (Navy)

## Source & machine access

- **Source:** FY2027 Department of the Army RDT&E Budget Justification, Exhibits R-2/R-3, PE 0604114A (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0604114A")`.

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