Beriev A-50 "Mainstay"
Beriev / Ilyushin · Soviet Union · first flew 1978 · transport aircraft
The A-50 Mainstay is Russia's primary airborne early-warning and control aircraft, built on the Il-76 transport airframe but immediately distinguished by the large surveillance rotodome mounted above the rear fuselage.
Recognition (WEFT)
| W — Wings | High-mounted, swept |
|---|---|
| E — Engines | 4 × turbofan, wing-mounted |
| F — Fuselage | Large rotodome mounted on two pylons above the rear fuselage — a distinctive mushroom-shaped disc approximately 9 m in diameter, absent from the standard Il-76 |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Large rotodome mounted on two pylons above the rear fuselage — a distinctive mushroom-shaped disc approximately 9 m in diameter, absent from the standard Il-76
- No glazed navigator nose — the A-50's nose is solid with a radar installation and no under-nose glass panels present on the baseline Il-76
- Fuselage side windows deleted or blanked; mission system cooling intakes added along the lower fuselage sides replacing the Il-76's passenger or cargo windows
The rotodome is the only identification cue needed — no Il-76 variant carries it; the solid nose and deleted fuselage windows are secondary confirmers visible at closer range.
Specifications
- The Beriev A-50 Mainstay has a length of 46.6 m (153 ft).
- It has a wingspan of 50.5 m (166 ft).
- Its maximum speed is 800 km/h (497 mph).
- Typical crew: 15.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
Entering Soviet service in 1984, the A-50 replaced the Tu-126 Moss in the AWACS role. It saw service in the First Chechen War and has been deployed during the Russian invasion of Ukraine from 2022, where several have been reported lost. The A-50U upgrade introduced modernised radar and mission systems from the 2010s onward.
Variants
The A-50U is the modernised variant with improved Shmel-M radar; the A-50I was a proposed export version; China's KJ-2000 used a similar approach on an Il-76 airframe.
Where you'll see it
The A-50 operates exclusively with the Russian Air Force and is based at Ivanovo-Severniy. No examples are in public museum display; the type remains in front-line service.
Related aircraft
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