Lower Tier Air Missile Defense (LTAMD) Sensor

The Lower Tier Air Missile Defense (LTAMD) Sensor program is a vital element of the Army's Air and Missile Defense Modernization Priority. This initiative focuses on developing a next-generation radar system capable of detecting and tracking tactical ballistic missiles and air-breathing threats. The primary goal is to enhance the lower tier air and missile defense battlespace by providing 360-degree sensing capability, surveillance, and fire control. Raytheon was selected as the prime vendor in early fiscal year 2020 to build six prototype sensors under the Middle Tier of Acquisition Rapid Prototyping authority.

The LTAMD Sensor program aims to replace the existing PATRIOT Radar Set with an advanced system integrated into the Army's Integrated Air and Missile Defense Battle Command System. This integration is intended to mitigate risks associated with evolving threats, reduce operations and support costs, and address obsolescence issues. Additionally, the program seeks to maximize the capabilities of the PAC-3 MSE Interceptor, enabling it to engage threats at greater ranges while addressing critical capability gaps.

In fiscal year 2025, efforts will focus on preparing for a Milestone C decision, marking the transition from rapid prototyping to major capability acquisition. Key activities include completing Early Operational Capability 2 assessments, conducting integrated fires test campaigns, and finalizing development test and evaluation processes. The program will also continue software development to counter evolving threats, enhance sensor capabilities through Pre-Planned Product Improvement efforts, and integrate with various interceptor systems for multi-domain operations.

Furthermore, fiscal year 2025 resources support testing activities related to qualification testing and developmental/operational tests as part of the Pre-Planned Product Improvement effort. A portion of these resources is allocated to support the Pacific Defense Initiative, emphasizing regional defense capabilities. These efforts are part of a broader strategy to improve survivability, resiliency, and effectiveness against advanced threats from near-peer adversaries.