Chyetverikov MDR-6

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Tschetwerikow MDR-6.JPG
Role Reconnaissance flying-boat
Manufacturer Chyetverikov
First flight July 1937
Introduction 1941
Retired 1942
Primary user Soviet Naval Aviation
Produced 1939-1945
Number built 27

The Chyetverikov MDR-6 was a 1930s Soviet Union reconnaissance flying-boat aircraft, and the only successful aircraft designed by the design bureau led by Igor Chyetverikov.


First flying in July 1937, the MDR-6 was a two-engined high-wing monoplane of all-metal stressed skin construction. The prototype was powered by two M-25 radial engines. A production run of 20 units powered by M-63 engines were produced in 1940 and 1941. All the aircraft were withdrawn from service in 1942 due to structural problems.[1]

Several progressively advanced prototypes were built from 1939 to 1945, but no further production ensued.


Initial prototype. One built.
Production version powered by M-63 radial engine. 20 built.
Redesign with smaller wing and two Klimov M-105 V-12 engines.
MDR-6B-1 to B-3
Refined developments of MDR-6A. Three prototypes built.
MDR-6B-4 to B5
New, much larger hull, powered by Klimov VK-107 engines. Two prototypes built.


 Soviet Union

Specifications (MDR-6A)[edit]

Data from Donald, 1997, pg 258.

General characteristics

  • Crew: 3
  • Capacity: 3
  • Length: 15.73 m (51 ft 7.25 in)
  • Wingspan: 19.4 m (63 ft 7.75 in)
  • Wing area: 52.3 m2 (562.97 ft2)
  • Empty weight: 4,100 kg (9,039 lb)
  • Gross weight: 7,200 kg (15,873 lb)
  • Powerplant: 2 × Shvetsov M-63 radial piston, 821 kW (1,100 hp) each


  • Maximum speed: 360 km/h (224 mph)
  • Cruising speed: 220 km/h (137 mph)
  • Range: 2,650 km (1,647 miles)
  • Service ceiling: 9,000 m (29,530 ft)


See also[edit]

Related lists


  1. ^ Gunston 1995
  • Donald, David, ed. (1997). The Encyclopedia of World Aircraft. Prospero Books. p. 258. ISBN 1-85605-375-X. 
  • Gunston, Bill (1995). The Osprey Encyclopedia of Russian Aircraft from 1875 - 1995. London: Osprey Aerospace. pp. 73–74. ISBN 1-85532-405-9. 

External links[edit]

See also[edit]