An upgraded and modernized A-50U aircraft has been delivered to the military, according to Fighter Bomber, a Russian fighter pilot's account, on 1/6. Accompanying images show the aircraft on an apron, flanked by a refueling truck and a power unit. The aircraft's tail number was blurred for security reasons.

The specific unit receiving the A-50U was not disclosed. However, military aviation specialist site Aviationist notes that the Russian Air Force operates at least two units with A-50U aircraft: the 2457th Air Base for Airborne Early Warning Operations and the 144th Independent Long-Range Reconnaissance Aviation Regiment. The Russian Ministry of Defense has not yet commented on this information.

Russia's A-50U early warning aircraft in a photo posted on 1/6. Photo: Aviationist

The A-50U is the designation for a mid-life modernization and upgrade program for the Soviet-era A-50 early warning aircraft, initiated in 2003. First commissioned in 1984, the A-50 aircraft utilizes the Ilyushin Il-76MD strategic transport airframe, featuring a dorsal Vega-M dish-shaped radar and associated electronic systems.

The Vega-M complex is reportedly capable of detecting low-flying fighter-type targets in ground clutter environments from a distance of 200-400 km. It can simultaneously track up to 150 targets at a range of nearly 600 km. In contrast, the original A-50 model could only track 45 targets at a distance of 225 km.

This ability to detect targets hundreds of kilometers away is why early warning aircraft like the A-50U are dubbed "flying eyes."

Other modernization features on the A-50U include new mission computers, enhanced digital signal processing capabilities, updated electronic equipment, large LCD display systems, and new navigation and communication suites. Ergonomic improvements and flight control computers also help reduce crew fatigue during extended flights.

The A-50U variant serves as the foundation for Russia's development of the more advanced A-100 early warning aircraft. The A-100 series is built on the Il-76MD-90A transport aircraft, utilizing an active electronically scanned array (AESA) radar capable of tracking 300 targets at a range of nearly 650 km. It is also believed to have an endurance of at least 10 hours without refueling.

Russia has reportedly built two A-100 aircraft but has not yet commenced mass production. According to a Flight Global report published in late 2025, the Russian Air Force possesses a total of 8 A-50, A-50U, and A-100 aircraft combined.

Ukraine has claimed to have shot down A-50U aircraft over the Azov Sea two times, in January and February 2024. The US Army later revealed that the second incident was carried out by a Patriot air defense system. Kyiv also stated it struck one A-50U with a first-person view drone during its "Spider Web" operation in June 2025.

A video released at the time by the Security Service of Ukraine (SBU) showed two Ukrainian drones landing on the radar dish of an A-50 aircraft at a base in Ivanovo province. However, it provided no images of the strike's aftermath. US military experts suggested that the A-50 targeted by drones was likely a decommissioned aircraft, given its significantly weathered radar dish and another nearby A-50 missing some engines.

By Pham Giang (According to Aviationist, Lenta)