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Beriev Be-4 Flying Boat
The Beriev Design Bureau developed the Be-4 design as a light airliner and maritime patrol / search and rescue aircraft. Beriev's original design specified a pair of V-12 inline engines mounted in push-pull configuration in a sponson. However, Tumansky proposed incorporating a pair of 555hp turboprop engines, developed in collaboration with Turbomeca of France, which provided better power at altitude. The first prototype first flew (with inline engines) in February of 1945, and entered service with Aeroflot in April of 1946.
General characteristics:
Crew: 2 (pilot + spotter/radioman)
Passengers: 7-9
Length: 13 m (42.6 ft)
Wingspan: 18 m (59 ft)
Height: 5.25m (17.2 ft)
Wing area: 31m² (333.7 ft²)
Empty weight: 2700 kg (5,952 lbs)
Loaded weight: 4,989 kg (11,000 lbs)
Powerplant: 2x Tumansky turboprop engines, 555 shp each
Performance:
Maximum speed: 340 kph \ 211 mph (183.5 knots)
Max Range: 1,480 km (920 mi)
Service ceiling: 5,500 m (18,044 ft)
Rate of climb: 11 ft/s (3.35 m/s)
Notes:
Engines mounted in push-pull configuration in sponson above wing
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Antonov An-2 Utility Aircraft
The An-2 came as a response to a request by Aeroflot and the Russian Air Force for a twin-engine airliner and light cargo aircraft for use from small or undeveloped airfields. The Antonov OKB designed a high-winged aircraft with special flaps designed to maximize performance at low speeds and altitudes. The An-2 was the first Russian aircraft designed from the start to use turboprops, with twin Tumansky engines of 555 horsepower each mounted on the wings. The An-2 proved to be incredibly versatile and popular, and upgraded aircraft were still manufactured in Russia as late as 1995.
General characteristics
- Crew: 2
- Passengers: 14-16, depending upon configuration
- Length: 15.25 m (52 feet)
- Wingspan: 19.8 m (64.9 feet)
- Height: 5.3 m (17.4 feet)
- Wing area: 39 m² (422 ft²)
- Empty weight: 2,880 kg (6,350 lbs)
- Loaded weight: 5,100 kg (11,244 lbs)
- Powerplant: 2 × 555hp (414 kW) Tumansky turboprop engines
Performance:
- Maximum speed: 325 km/h (175 knots / 202 mph)
- Cruise speed: 275 km/h (148 knots / 171 mph)
- Stall speed: 100 km/h ( knots / 62 mph)
- Max Range: 1,410 km (876 miles)
- Service ceiling: 7,500 meters (24,600 feet)
- Rate of climb: 7.5 ft/s (2.29 m/s)
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