Direct proof of use
The Ministry of Defence of Ukraine identifies Raybird, known in military service as ACS-3, as a domestically developed unmanned aerial system actively deployed on the front lines. It describes the aircraft as a reconnaissance platform with over 350,000 operational flight hours, dozens of daily missions, and payload options that include multisensor gimbals with laser designators, high-resolution cameras, synthetic-aperture radar, loitering munitions, and FPV drones.
Skyeton separately states that ACS-3 has been delivered to the Armed Forces of Ukraine since 2019 and serves with a separate remotely piloted aircraft regiment of the Ukrainian Air Force. In that account, the aircraft can cover the Donbas contact line in one flight and support systematic monitoring of enemy positions.
Sources: Ukrainian MoD Raybird article, Skyeton ACS-3 Air Force article
Timeline
Skyeton says Raybird passed state testing under a Ukrainian Ministry of Defence contract in 2018. The following year, the company said ACS-3 deliveries to the Armed Forces of Ukraine had begun, placing the system in Ukrainian military service during the Donbas phase of the war.
After the February 2022 full-scale invasion, Skyeton describes Raybird as one of the key long-range reconnaissance UAVs used by Ukrainian forces. The Ukrainian MoD later described Raybird as an actively deployed front-line system with extensive combat flight experience.
Sources: Skyeton About page, Skyeton ACS-3 Air Force article, Ukrainian MoD Raybird article
Operational role
Raybird's documented role in this conflict is centered on intelligence, surveillance, reconnaissance, and target work rather than direct strike as its baseline function. Ukrainian MoD material describes visual reconnaissance, target designation, and combat missions, while Skyeton's conflict-use material emphasizes long endurance, front-line monitoring, and operation in areas shaped by air-defense and electronic-warfare threats.
For fire-control missions, Skyeton presents Raybird as an aerial sensor and coordinate-transmission node for artillery and rocket systems. Its targeting page says Raybird sends target coordinates in real time, integrates with systems such as HIMARS, Krab, and Caesar, and has helped adjust strikes on targets during the full-scale invasion. Those claims come from the manufacturer and are used here as attributed evidence of the documented employment role, not as independent verification of battle-damage effects.
Sources: Ukrainian MoD Raybird article, Skyeton ACS-3 Air Force article, Skyeton Targeting page
Fielding and scale
The available public sources support Ukrainian use but do not provide a complete unit-by-unit order of battle. Skyeton's public material says Raybird had more than 350,000 combat flight hours in Ukraine by 2025-2026, and a joint-venture announcement says hundreds of Raybirds had been deployed in the region. The Ukrainian MoD gives the same broad operational-flight-hour figure while describing the system as an actively deployed Ukrainian front-line UAS.
The strongest dated public marker for pre-2022 use is the 2019 delivery statement for the Armed Forces of Ukraine and the Donbas contact-line monitoring description. The strongest public marker for the full-scale phase is the 2022 Skyeton milestone naming Raybird as a key long-range reconnaissance UAV of Ukrainian forces, reinforced by later Ukrainian MoD and manufacturer statements about combat flight hours and daily missions.
Sources: Skyeton ACS-3 Air Force article, Skyeton About page, Ukrainian MoD Raybird article, Skyeton Prevail joint venture announcement
