[align=left]General characteristics
* Crew: ≥2
* Length: 123 m (403 ft)
* Wingspan: 156 m (512 ft)
* Height: m (ft)
* Wing area: 3,428 m² (36,900 ft²)
* Empty weight: 1,500,000 kg (3,300,000 lb)
* Max takeoff weight: 2,500,000 kg (5,500,000 lb)
* Powerplant: 6× Kuznetsov NK-116 propfans or turbofans, 1029.7 kN (231,485 lbf) each
Performance
* Maximum speed:
o At 10,000 m (33,000 ft): 800 km/h (430 knots, 500 mph)
o In ground effect: 450 km/h (240 knots, 280 mph)
* Range:
o At 10,000 m: 17,000 km (9,200 nm, 10,580 mi)
o In ground effect: 10,700 km (5,780 nm, 6,650 mi)
* Max wing loading: 730 kg/m² (150 lb/ft²)
* Minimum thrust/weight: 0.025(1 pound of thrust per 39+lb of aircraft at MTOW)
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The Beriev Be-2500 Neptun (Cyrillic: Бериев Бе-2500 Нептун) is a super-heavy amphibian cargo aircraft concept being developed[citation needed] by the Beriev Aircraft Company of Russia. Its maximum takeoff weight is projected to be 2,500 metric tons, hence the designation.
It is designed to function as both a conventional high-altitude jet and as an Ekranoplan. It is intended to fly transcontinental routes, taking off from conventional sea-ports and requiring no special infrastructure.
If it enters service, it will become the new largest aircraft in the world, surpassing another aircraft designed in a territory of the former Soviet Union, the Antonov An-225.
Beriev claims that if this plane is to become a reality investments from several countries are
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