Lockheed Martin Advances Production of Sentinel A4 Radars for US Army
Lockheed Martin has begun transitioning the Sentinel A4 radar from low-rate initial production to full-rate production, having delivered the first unit to the US Army. Designed to replace the legacy Sentinel A3 radar, the new system features a 360-degree AESA sensor and enhances detection capabilities against airborne threats, including rockets and drones. The US Army has been testing the radar, with full-rate production expected to follow the planned delivery of 19 units in the current production phase.
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Lockheed Martin is transitioning the Sentinel A4 radar to full-rate production (FRP) after delivering the first unit to the US Army. The Sentinel A4, designed to replace the legacy Sentinel A3 radar, features a 360-degree Active Electronically Scanned Array (AESA) sensor and shows over a 75% increase in range.
The radar can detect small targets at ranges up to 35 km and adds capabilities against Rocket, Artillery, and Mortar (RAM) threats. The US Army awarded the contract for the Sentinel A4 in 2019, with the first unit completed in August 2022. The Army is currently testing the system at White Sands Missile Range, and further deliveries are planned as production ramps up.
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