Grigorovich MR-5
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| MR-5 | |
|---|---|
| General information | |
| Type | Reconnaissance flying boat |
| Designer | |
| Primary user | Soviet Navy |
| Number built | 1 |
| History | |
| First flight | July 1929 |
| Developed from | Grigorovich MR-2 |
The Grigorovich MR-5 was a long-range reconnaissance flying boat designed by the Grigorovich Design Bureau for the Soviet Navy in the late 1920s.
The MR-5 was similar to the MR-2 in layout, armament, and payload, but had a more powerful BMV VI engine and an all-metal hull. Flight tests were conducted in Taganrog beginning in July 1929, and although the aircraft behaved well in the air, takeoff was sluggish.[1]
Specifications
Data from [2]
General characteristics
- Crew: 2
- Length: 11.4 m (37 ft 5 in)
- Wingspan: 15.6 m (51 ft 2 in)
- Wing area: 53.0 m2 (570 sq ft)
- Empty weight: 2,027 kg (4,469 lb)
- Max takeoff weight: 3,082 kg (6,795 lb)
- Powerplant: 2 × BMV VI V-cylinder inline engine, 372 kW (499 hp) each
Performance
- Maximum speed: 235 km/h (146 mph, 127 kn)
- Endurance: 4 hours
- Service ceiling: 4,000 m (13,000 ft)
- Time to altitude: 1,000 m (3,281 ft) in 7.0 minutes[3]
- Wing loading: 58.2 kg/m2 (11.9 lb/sq ft)
Armament
- Guns: 1-2 x machine guns