Beriev MBR-2

The Beriev MBR-2[1] was a reconnaissance flying boat which entered service with the Soviet Navy in 1935. {| class="toc" id="toc"

Contents
[hide] *1 Design
 * 2 Variants
 * 3 Operators
 * 4 Specifications (MBR-2bis)
 * 5 See also
 * 6 References
 * 7 External links
 * }

Design
The MBR-2 was designed by Georgy Mikhailovich Beriev and first flew in 1931, powered by an imported 373 kW (500 hp) BMW VI.Z engine. Production models, which arrived in 1934, used a licence-built version of this engine, the Mikulin M-17 of 508 kW (680 hp), and could be fitted with a fixed wheel or ski undercarriage.

Beriev also designed a commercial airliner derivation, the MP-1, which entered airline service in 1934, and a freighter version, which followed in 1936.

In 1935, an improved version was developed, the MBR-2bis, powered by the Mikulin AM-34N engine, and fitted with an enclosed cockpit, dorsal gun-turret and enlarged vertical tail. In this configuration, the machine remained in production until 1941. As with the MBR-2, the bis spawned a commercial derivative and the MP-1bis entered service in 1937.

Variants

 * MBR-2M-17 : Short-range maritime reconnaissance, bombing flying-boat, powered by a 508 kW (680 hp) Mikulin M-17B piston engine.
 * MBR-2AM-34 or MBR-2bis : Improved version, powered by a Mikulin AM-34N engine.
 * MBR-2M-103 : One MBR-2AM-34 was fitted with the more powerful M-103 engine. One prototype only.
 * MP-1 : Civil version of the MBR-2M-17 flying-boat for Aeroflot. It could carry six passengers in an enclosed cabin.
 * MP-1bis : Civil version of the MBR-2AM-34 flying-boat for Aeroflot.
 * MP-1T : Freight transport conversion of MBR-2.

Operators

 * Finland
 * The Finnish Air Force operated five captured aircraft from 1941.
 * Soviet Union
 * Aeroflot
 * Soviet Naval Aviation
 * North Korea
 * North Korean Air Force

Specifications (MBR-2bis)
General characteristics Performance Armament
 * Crew: 4-5
 * Length: 13.50 m (44 ft 3½ in)
 * Wingspan: 19.00 m (62 ft 4 in)
 * Height: 4.40 m (14 ft 9 in)
 * Empty weight: 2,718 kg (5,990 lb)
 * Max. takeoff weight: 4,245 kg (9,359 lb)
 * Powerplant: 1 × Mikulin AM-34N V12 engine, 559 kW (750 hp)
 * Maximum speed: 275 km/h (148 knots, 171 mph)
 * Range: 1,500 km (810 nm, 930 mi)
 * Service ceiling: 4,900 m (16,080 ft)


 * Guns:
 * 1× 7.62 mm (0.30 in) PV-1 machine gun in bow
 * 1× 7.62 mm ShKAS machine gun in dorsal turret
 * Bombs: 300 kg (660 lb) of bombs, mines, and depth charges carried underwing