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.
| MDR-6 | |
|---|---|
 | |
| 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 |
Development
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 All the aircraft were withdrawn from service in 1942 due to structural problems.[1]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.
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.
Specifications (MDR-6A)
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 sq ft)
- 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
Performance
- Maximum speed: 360 km/h (224 mph, 195 kn)
- Cruise speed: 220 km/h (137 mph, 119 kn)
- Range: 2,650 km (1,647 mi, 1,431 nmi)
- 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
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References
- Gunston 1995
- Donald, David, ed. (1997). The Encyclopedia of World Aircraft. Prospero Books. p. 258. ISBN 1-85605-375-X. Missing or empty
|title=(help) - Gunston, Bill (1995). The Osprey Encyclopedia of Russian Aircraft from 1875 – 1995. London: Osprey Aerospace. pp. 73–74. ISBN 1-85532-405-9.
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