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Germany HENSOLDT AG
TRML-4D
A mobile C-band AESA air-surveillance and target-acquisition radar from HENSOLDT built for ground-based air defense, able to track around 1,500 targets simultaneously out to 250 km. It cues short and medium-range surface-to-air missile batteries such as IRIS-T SLM and has been supplied to Ukraine and Germany's air-defense forces.
Compiled from public sources ·primary reference ↗
30,000
m altitude
1,500
targets
250
km radar
Procurement snapshot
Availability & export
German export-licensed
BAFA licensing with strict end-use review; approvals can be politically constrained.
Channel: Direct commercial / G2G
Fielded & proven
Operator data not public
Status: active.
Lifecycle cost (est.)
No public unit price to model from. Why so few systems publish one →
Interoperability
No standardised NATO calibre / datalink detected in public specs.
Competitive field
64 comparable systems from 26 other manufacturers
Counted in the WeaponSpecs database: air-defense systems built by another manufacturer that share at least one published role with this system. A count of what this catalog holds, not a survey of the whole market. See the alternatives →
Derived guidance from public data, export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.
Overview
TRML-4D (Tracking and Surveillance Radar) is HENSOLDT's mobile, gallium-nitride active electronically scanned array (AESA) radar for ground-based air defense, combining continuous mechanical 360-degree rotation with electronic beam steering for rapid revisit rates against small, fast, low-flying and stealthy targets, including cruise missiles and drones. It offers an instrumented range of up to 250 km and instrumented altitude of up to 30 km, tracks fighter aircraft beyond 120 km and supersonic missiles beyond 60 km, and can hold roughly 1,500 targets in parallel. The system is transportable on cross-country trucks fitted for 20-foot ISO containers and can be set up or struck in 10-15 minutes, operating under remote control away from the launcher. TRML-4D cues short and medium-range SAM systems including IRIS-T SLM, and HENSOLDT and Diehl Defence have received large follow-on orders, including deliveries and further sales to Ukraine and Egypt.
Full specifications
Performance
Speed, range, altitude and engagement capability.
| Engagement altitude Maximum target altitude the system can reach. | 30,000 m |
|---|---|
| Simultaneous targets Number of targets the system can engage at once. Higher resists saturation attacks. | 1500 |
Sensors & avionics
Radar, sensor suite and datalinks.
| Radar range Published detection range against a typical fighter-sized target. Higher sees first. | 250 km |
|---|---|
| Sensors IRST, EO/IR turrets, laser designators, sniper pods, thermal sights. | C-band (4-8 GHz) AESA radar, GaN solid-state active array |
Specifications compiled from public HENSOLDT AG and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-08-24.
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KBP Instrument Design Bureau Pantsir-S1 Frequently asked questions
What is the HENSOLDT AG TRML-4D used for? +
The HENSOLDT AG TRML-4D is a air defense system typically used for air defense, air surveillance.
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