Beriev Be-8
| Be-8 | |
|---|---|
| |
| Role | Airliner |
| Manufacturer | Beriev |
| First flight | 3 December 1947[1] |
| Status | Did not enter mass-production |
| Number built | 2 |
TheBeriev Be-8(USAF/DoD reporting name"Type 33",[2]NATOreporting name"Mole"[3]), was built by theSovietBeriev OKBin 1947. It was a passenger/liaisonamphibian aircraftwith a layout similar to theBe-4but substantially larger and heavier. It was a singleenginedparasol wingedaircraft, with the wing installed on a thin pylon and a pair of shortstruts.Compared to the Be-4, the Be-8 was equipped with retractablelanding gear,with cockpit and passenger cabins heated by an engine exhaust heat exchanger. The Be-8 was intended as acivil aircraftand carried no armament. First flight was on 3 December 1947, demonstrating good performance and of the two prototypes, one was demonstrated during the1951 Soviet Aviation DayatTushino.
One of Be-8 was equipped withhydrofoils,developed at TsAGI. These "Underwater Wings" were installed on landing gear struts and raised the aircraft above the water, well before the aerodynamic lift could support the aircraft. As a result, takeoff was much easier and imposed less punishment on the hull from the waves. Despite being very effective during take-off, the hydrofoils resulted in increased drag and a reduction in maximum airspeed. Construction of retractable hydrofoils was not ready, and the concept did not find practical applications.
Specifications (Be-8)
[edit]
Data fromThe Osprey Encyclopedia of Russian Aircraft 1875–1995[1]
General characteristics
- Crew:2
- Capacity:6 passengers
- Length:13.0 m (42 ft 8 in)
- Wingspan:19.0 m (62 ft 4 in)
- Wing area:40 m2(430 sq ft)
- Empty weight:2,815 kg (6,206 lb)
- Gross weight:3,624 kg (7,990 lb)
- Fuel capacity:352 kg (776 lb)
- Powerplant:1 ×Shvetsov ASh-21seven-cylinder air-cooledradial engine,520 kW (700 hp)
- Propellers:3-bladed VISh constant speed, 3 m (9 ft 10 in) diameter
Performance
- Maximum speed:266 km/h (165 mph, 144 kn) at 1,800 m (5,900 ft)
- Cruise speed:220 km/h (140 mph, 120 kn)
- Range:1,205 km (749 mi, 651 nmi)
- Service ceiling:5,500 m (18,000 ft)
References
[edit]- ^abGunston 1995, p. 50.
- ^"Designations of Soviet and Russian Military Aircraft and Missiles".Retrieved20 December2014.
- ^"Designations of Soviet and Russian Military Aircraft and Missiles".Retrieved20 December2014.
- Gunston, Bill.The Osprey Encyclopedia of Russian Aircraft 1875–1995.London: Osprey, 1995.ISBN1-85532-405-9.