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Beriev KOR-2 / Be-4



More or less in parallel with the construction and development of the KOR-1 floatplane, The Beriev bureau worked on the design of a small flying-boat intended to fulfil the same requirement as the hastily developed KOR-1, but to provide much enhanced performance.

In configuration the Beriev KOR-2 was a parasol-wing monoplane, the wing pylon-mounted above the stepped flying-boat hull, and braced by two streamlined struts on each side.

An inverted gull wing, with a wing-mounted engine and three-bladed controllable-pitch propeller. The tail unit was similar in configuration to that of the KOR-1, except that the high-mounted tailplane was a strut-free cantilever structure.

First flown in 1940, this Beriev design was built in a factory at Taganrog, on the shore of the Sea of Azov, only a small number of these aircraft had been completed and delivered to the Soviet navy before the Taganrog area was over-run by the invading Germans in the autumn of 1941. Production of the KOR-2, or Beriev Be-4 as it had then been redesignated, was resumed at a Central Asian factory during 1942, but no records of the number constructed have so far been discovered.

Engine: 1 x Shvetsov M-62 radial, 671kW
Take-off weight: 2760 kg / 6085 lb
Empty weight: 2055 kg / 4531 lb
Wingspan: 12.0 m / 39 ft 4 in
Length: 10.5 m / 34 ft 5 in
Height: 4.05 m / 13 ft 3 in
Wing area: 25.5 sq.m / 274.48 sq.ft
Max. speed: 360 km/h / 224 mph
Ceiling: 8100 m / 26600 ft
Range: 950 km / 590 miles
Armament: 1 x 7.62mm machine-gun, 300kg of bombs





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