HENSOLDT has completed the installation of the first TRL-4D LR long-range air surveillance radar at the Brockzetel site in northern Germany, marking a significant step in the German Air Force’s modernization of its ground-based radar network.
The radar is being deployed under the HADR NF program, initiated in 2021 to replace the aging Hughes Air Defence Radar infrastructure currently supporting national airspace surveillance operations.
A total of four TRL-4D LR/ROT radar systems are scheduled to become operational by 2030.
Transport and Installation
The newly deployed radar was installed at the “Bunker Balduin” facility in Brockzetel after several weeks of transport and preparation work.
According to HENSOLDT, major radar components were delivered to the site in March 2026 before being assembled on an existing steel lattice tower.
The installation process included mounting the primary antenna, weighing approximately 13 tonnes, followed by the integration of a secondary antenna and the placement of a protective radome measuring over 13 meters in diameter.
Temporary Operational Setup
The Brockzetel deployment will function as an interim solution until permanent concrete radar towers are completed.
Planning for the temporary installation began in 2022 and required close coordination between the German Air Force, the Federal Office of Bundeswehr Equipment, Information Technology and In-Service Support, regional construction agencies, and industry subcontractors.
Built using active electronically scanned array technology, the TRL-4D LR radar is designed to deliver advanced long-range airspace surveillance and tracking capabilities.
The initiative forms part of Germany’s broader effort to strengthen air defense and surveillance systems amid growing security concerns across Europe.
