Stalker drone – Tracks and strikes despite EW

Fiber-optic-controlled FPV drones have proven their role and purpose in russia’s war against Ukraine. They have a unique advantage that other drone types lack: assured resilience against electronic warfare (EW) measures. Included among them is the Stalker drone series by Ukraine’s TechEx, equipped with fiber-optic control.

Codified by Ukraine’s Ministry of Defence since early 2025, these drones have been actively deployed by combat units, which continuously provide the manufacturer with valuable feedback from the battlefield. These technological developments stem from hundreds of combat flights, statistical analysis, and feedback from frontline operators.

The manufacturer is currently focused on scaling up production of two models: Stalker XO-10 and Stalker XO-15.

Stalker XO-10

A 10-inch fiber-optic-controlled drone, optimized for destroying enemy vehicles, equipment, and personnel at forward positions. It is designed for operation in environments with intense electronic interference.

Highly maneuverable in flight and fast to launch, the drone excels in precision strikes where every second matters. 

Stalker XO-15

A 15-inch drone with extended range and increased combat payload capacity. This long-range, heavily armed drone enables effective strikes against fortified enemy positions in their tactical depth.

While the XO-10 excels at engaging frontline targets, the XO-15 is suited for striking in support zones, targeting rear command posts, towed and self-propelled artillery, air defense systems, and electronic warfare assets. 

One of the key advantages of the Stalker series is its record-low spool weight among Ukrainian fiber-optic drones. The drones in this series feature a standardized FPV layout with an unobstructed upper frame, allowing for the mounting of payloads of various shapes. The battery is mounted at the front underside of the frame, improving flight stability through optimal weight distribution around the center of mass.

TechEx utilizes proprietary technology and equipment for winding optical fiber, along with advanced systems for control, signal transmission, and telemetry. The manufacturer is currently conducting tests to increase the drones’ operational range to 20 and 25 kilometers.