Lower Tier Air Missile Defense (LTAMD) Sensor

Abstract

This funding line is directly aligned to the Army Air and Missile Defense Modernization Priority. The Lower Tier Air Missile Defense Sensor (LTAMDS) is a next generation radar intended to sense and track Tactical Ballistic Missiles and Air Breathing Threats; expand the lower tier air and missile defense battlespace and provide 360-degree sensing capability, surveillance, and fire control. The LTAMDS program competitively selected Raytheon as the prime vendor in 1st Quarter (Q) Fiscal Year (FY) 2020 to build six (6) prototype sensors under the Middle Tier of Acquisition Rapid Prototyping (MTA-RP) authority. 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, decreasing Operations and Support (O&S) costs, and growing obsolescence. Additionally, the LTAMDS capability maximizes the inherent PAC-3 MSE Interceptor capabilities to engage threats at greater ranges in addition to addressing critical capability gaps, providing modernized technology, and increasing reliability and maintainability. LTAMDS will exit the Middle Tier of Acquisition (MTA) Rapid Prototyping pathway in 1Q FY2024 and will enter Major Capability Acquisition (MCA) at Milestone C. FY2025 funds will be used to fund LTAMDS remaining activities that prepare LTAMDS for a Milestone C decision. LTAMDS will complete Early Operational Capability 2 (EOC 2) Full Sector Operational Assessment with an Integrated Fires test campaign and complete Development Test & Evaluation (DTE). Funding in FY2025 also supports continued software development to counter evolving threats; digital modeling and simulation efforts; critical capabilities; integration activities with the IBCS; sensor enhancements as part of the Pre-Planned Product Improvement (P3I) effort; integration with the PATRIOT family of interceptors (PAC-2 GEM-T, PAC-3, PAC-3 MSE) in support of Integrated Fires and Multi-domain Operations; AMD survivability efforts; and will complete Large Tactical Power System (LTPS) testing. FY2025 will fund testing activities for the Pre-Planned Product Improvement (P3I) effort to include completion of Qualification Testing and beginning of Developmental Test/Operational Test (DT/OT). FY2025 funding in the amount of $30.285 million is in support of the Pacific Defense Initiative. The total cost of the LTAMDS Middle Tier of Acquisition effort is $1,578 million RDT&E from FY 2019 to FY 2024.

Document Details

• Document Type: R2 Budgetary Justification
• Publication Date: Oct 01, 2025
• Source ID: 0604114A_4_2040_PB_2025
• Change Summary Explanation: $30M realigned from PROC to RDTE in FY 2025 to support Pacific Deterrence Initiative efforts.
• Service Agency Name: Army

Entities

Organizations

• United States Army

Tags

Readers

• Missile Defense Systems.
• Tactical Satellite Communications Systems Engineering.
• Unmanned Aerial System (UAS) Autonomous Capabilities and Mission Reconnaissance.