German radar maker Hensoldt has signed a memorandum with Ukraine's Defense Ministry for more large-scale radar deliveries, the company said on 5 October. Ukrainian defense outlet Defense Express reads it as a step toward fitting Hensoldt's TRML-4D, already in Ukrainian service, into FREYJA, a planned shield against ballistic missiles.

Ballistic missiles remain the hardest threat in Russia's air war. After Russia's overnight barrage on 7 October, Ukrainian President Volodymyr Zelenskyy said Ukraine is still searching daily for Patriot missiles. The only other system Ukraine can use against them is the Franco-Italian SAMP/T, which fires Aster 30 interceptors made in small numbers. That gap is why Fire Point is reworking its FP-7 missile into a Patriot-like interceptor. Such an interceptor still needs radars to find its target first.

A memorandum signed during Merz's visit

Hensoldt CEO Oliver Dörre signed the document on the sidelines of German Chancellor Friedrich Merz's visit to Ukraine. Beyond deliveries, it covers further development of radar capabilities. The partners will also study options to deploy and jointly operate TRL-4D LR long-range radars. Hensoldt said this expands cooperation already agreed on in ballistic missile defense.

The TRL-4D LR is the land-based version of a long-range radar Hensoldt also builds for the German Navy, German outlet Sicherheit & Verteidigung reported. The outlet cited Germany's defense procurement office as giving the naval version a range of more than 400 km (250 miles) against air targets. That, it concluded, puts the range well beyond the TRML-4D's.

"The Ukrainian air defence forces urgently need our high-performance radars to help protect infrastructure such as bridges," Dörre said.

Defense Express, describing the same memorandum, tied both the mass deliveries and the joint-operation plan to the TRML-4D. Hensoldt's release names no model for the deliveries and links joint operation to the TRL-4D LR.

Eyes for FREYJA

Hensoldt and Fire Point signed a memorandum on FREYJA at the Eurosatory arms show in Paris in June, with the TRML-4D to play a key role, Hensoldt announced. Fire Point is set to act as prime contractor and hold design authority. Hensoldt is to produce, test, and deliver the radars.

Defense Express expects any study of deployment options to focus on how well the radar detects ballistic missiles and relays that data. Hensoldt has its own unit in Ukraine to work closely with operators, the outlet noted. Earlier, the company began setting up a local hub so Ukraine can service and repair the TRML-4D itself.

Already on duty

Ukraine's military uses the TRML-4D both standalone and as the built-in radar of the IRIS-T SLM medium-range air defense system, Defense Express noted. Hensoldt lists an instrumented range of 250 km (155 miles) at altitudes up to 30 km (19 miles). Defense Express, citing the manufacturer, gives track ranges of more than 120 km (75 miles) for fighter jets and more than 60 km (37 miles) for supersonic missiles.

More radars give earlier warning of ballistic strikes, but they cannot stop them. Until the FP-7.X makes its first ballistic intercept, planned for mid-2027, that job stays with Patriot and SAMP/T missiles. Partners delivered three times fewer air defense missiles in the first half of 2026 than a year earlier, Zelenskyy said on 5 August.

Russia's jet-powered attack drones could eventually reach 800–900 km/h, and intercepting them will demand new piloting skills—so Ukraine has asked the makers of its interceptor drones to build simulators to train the crews, a senior Air Force officer told a parliamentary commission on 6 October, Suspilne reported.

Russia keeps modifying its jet Shaheds faster than Ukraine can field the drones meant to catch them, and Kyiv is now preparing crews for speeds its interceptors have never faced—a sign the air war is shifting from a contest of volume to one of raw speed.

The speed Russia hasn't reached yet

Colonel Yurii Cherevashenko, deputy commander of Ukraine's Air Force, told the commission that Russia's jet drones fly at around 600 km/h today but could eventually reach 800–900 km/h—speeds he said have not been recorded so far. That range sits near the cruising speed of a commercial airliner.

Intercepting such targets will take specific piloting skills, Cherevashenko said. When an interceptor and its target move at roughly the same speed, he noted, the pilot barely perceives the difference in their speeds. To train for that, Ukrainian interceptor-drone makers have been tasked with building simulators where crews can practice against high-speed targets.

Where Ukraine stands now

Ukraine already downs 85% to 90% of Russia's slower, propeller-driven drones, Ukrainian President Volodymyr Zelenskyy has said, but the jet models remain a tougher problem—Ukrainian interceptors scored their reportedly first kill of a jet-powered Shahed in November 2025. In a 28 September evening address, Zelenskyy put the jet-drone interception rate at about 57%, lower than required. Days later, he said Ukraine is testing five interceptor-drone models and could be producing about 400 of one of them by the end of October. Asked when jet-drone interceptors would arrive at the scale needed, Cherevashenko answered: "Not before the end of November."