Beriev MBR-2

The Beriev MBR-2[1] was a Soviet multi-purpose (including reconnaissance) flying boat which entered service with the Soviet Navy in 1935. Out of 1,365 built, 9 were used by foreign countries including Finland and North Korea. In Soviet Union it sometimes carried the nickname of "Kорова" (cow) and "Амбар" (barn)[2].

Beriev MBR-2
Aeroflot MP-1 at Yalta, circa 1938.
Role Patrol aircraft
Manufacturer Beriev OKB
Designer Georgy Mikhailovich Beriev
First flight 1931
Introduction 1935
Status Out of production; retired
Primary user Soviet Navy
Produced 1934-1941
Number built 1,365

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. It could carry six passengers in an enclosed cabin.
  • MP-1bis : Civil version of the MBR-2AM-34 flying-boat.
  • MP-1T : Freight transport conversion of MBR-2.

Operators
 Finland
 Soviet Union
 North Korea
  • North Korean Air Force

Specifications (MBR-2bis)

Data from

General characteristics

  • Crew: 4-5
  • Length: 13.5 m (44 ft 3 in)
  • Wingspan: 19 m (62 ft 4 in)
  • Height: 4.4 m (14 ft 5 in)
  • Airfoil: root: MOS-27 (18%) ; tip: MOS-27 (10%)[3]
  • Empty weight: 2,718 kg (5,992 lb)
  • Max takeoff weight: 4,245 kg (9,359 lb)
  • Powerplant: 1 × Mikulin AM-34N V-12 liquid-cooled piston engine, 559 kW (750 hp)

Performance

  • Maximum speed: 275 km/h (171 mph, 148 kn)
  • Range: 1,500 km (930 mi, 810 nmi)
  • Service ceiling: 4,900 m (16,100 ft)

Armament

  • Guns:
  • Bombs:
  • 300 kg (660 lb) of bombs, mines, and depth charges carried underwing
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See also

Aircraft of comparable role, configuration and era

Related lists

References
  1. MBR stands for its Russian role - Morskoi Blizhniy Razvedchik (Cyrillic: Морской Ближний Разведчик) "Naval Short Range Reconnaissance".
  2. Bogatko, Sergei. Recce's of tradeways
  3. Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.
  • Munson, Kenneth (1969). Bombers, Patrol and Transport Aircraft 1939-45. Blandford. ISBN 0-7137-0379-2.
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