Chyetverikov MDR-6

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.

Chyetverikov MDR-6
Class Aircraft
Type Reconnaissance
Manufacturer OKB Chyetverikov
Production Period 1939 - 1945
Origin Russia (USSR)
Country Name Origin Year
Russia (USSR) 1937
Country Name Operational Year Retirement Year
Russia (USSR) 1941 1942 View
ManufacturerName Production From Production To Quantity
OKB Chyetverikov 1939 1945 27 View

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 All the aircraft were withdrawn from service in 1942 due to structural problems.

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

Variants

  • MDR-6 : Initial prototype. One built.
  • Chye-2 : Production version powered by M-63 radial engine. 20 built.
  • MDR-6A : 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. 



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


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 each

Performance

  • 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)

Armament

  • 1 × 7.62-mm (0.3-in) ShKAS machine gun in bow turret
  • 1 × 12.7-mm (0.5-in) UBT machine gun in dorsal turret
  • 1,000-kg (2205-lb) bombload

End notes