The Czech-Ukrainian UAC unveiled the MACE strike drone at DSEI 2025 – the export version of DeViRo’s Bulava

At the DSEI 2025 international exhibition in London, the Czech-Ukrainian company UAC presented the MACE unmanned aerial strike system, Army Recognition reports. UAC is a subsidiary of the Ukrainian drone manufacturer DeViRo, and MACE is the export version of the Bulava strike UAV, which the company unveiled earlier this year.

MACE belongs to the class of loitering munitions capable of combining reconnaissance and precision strikes. Its design allows interaction with other unmanned aerial vehicles and the use of swarm tactics, which expands the range of combat missions and enhances effectiveness in complex operations.

Telemetry and video can be transmitted over a distance of up to 35 km in line-of-sight conditions, while MESH technology extends this range to 100 km. The system supports two-way digital communication, allowing the exchange of signals between drones during reconnaissance and combat operations.

The device can remain in the air for up to 75 minutes, maintaining a cruising speed of 20–25 m/s (72–90 km/h). It is operational in temperatures from –30 to +50 °C and in winds of up to 20 m/s. The drone operates day and night, can reach an altitude of up to 2,000 metres, and is launched from a pneumatic catapult. The warhead is combined — cumulative-fragmentation — with a weight of 2.5 kg.

MACE is powered by an electric motor and features an autopilot with automatic and navigation modes. Guidance can be conducted either pre-launch, by entering coordinates, or post-launch using a computer vision system.

The drone is equipped with protection against electronic warfare, including countermeasures against GPS jamming and spoofing. In the event of interference, it switches to inertial navigation with error correction. Communication channels are secured with AES 128/256 encryption.

Previously, Defender Media reported that Vyriy and The Fourth Law had announced the start of mass production of the terminal-guided Vyriy-10-TFL-1 drone.