Engineering:Avia BH-26
| BH-26 | |
|---|---|
| |
| Role | Reconnaissance aircraft |
| Manufacturer | Avia |
| Designer | Pavel Beneš and Miroslav Hajn |
| First flight | 1927 |
| Number built | ca. 8 |
The Avia BH-26 was a two-seat armed reconnaissance aircraft built in Czechoslovakia in 1927. It was a single-bay unstaggered biplane with equal-span wings and a fixed tailskid undercarriage. Both upper and lower wings featured long-span ailerons, which were dynamically balanced by a small auxiliary airfoil mounted to the upper surface of the lower ailerons. Its design was typical of this type of aircraft built during World War I and the years following; pilot and observer sat in tandem open cockpits with the observer armed with a machine gun on a ring mount. As with many other Avia designs, the BH-26 originally had no fixed fin, only a rudder, but this was changed in service.
Specifications
Data from Jane's all the World's Aircraft 1928[1]
General characteristics
- Crew: 2 - pilot and observer
- Length: 8.93 m (29 ft 4 in)
- Wingspan: 10.8 m (35 ft 5 in)
- Height: 3.35 m (11 ft 0 in)
- Wing area: 31 m2 (330 sq ft)
- Empty weight: 1,080 kg (2,381 lb)
- Gross weight: 1,760 kg (3,880 lb)
- Fuel capacity: 380 kg (840 lb) fuel and oil
- Powerplant: 1 × Walter-built Bristol Jupiter 9-cylinder air-cooled radial piston engine, 340 kW (450 hp)
- Propellers: 2-bladed fixed-pitch propeller
Performance
- Maximum speed: 250 km/h (160 mph, 130 kn)
- Stall speed: 90 km/h (56 mph, 49 kn)
- Range: 530 km (330 mi, 290 nmi)
- Service ceiling: 7,500 m (24,600 ft)
- Rate of climb: 6.3 m/s (1,240 ft/min)
- Time to altitude: 5,000 m (16,000 ft) in 13 minutes 20 seconds; 6,000 m (20,000 ft) in 17 minutes 30 seconds; 7,000 m (23,000 ft) in 27 minutes
- Wing loading: 55.6 kg/m2 (11.4 lb/sq ft)
- Power/mass: 0.205 kW/kg (0.125 hp/lb)
Armament
- Guns: 2x fixed, forward-firing, synchronised 7.7 mm (0.303 in) Vickers machine-guns in the forward fuselage upper decking and 2x 7.7 mm (0.303 in) Lewis guns on a flexible mount in the rear cockpit.
See also
Related development BH-28
References
- ↑ Grey, C.G., ed (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 76c.
Further reading
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. pp. 86.
- World Aircraft Information Files. London: Bright Star Publishing. pp. File 889 Sheet 86.
- Němeček, Václav (1968) (in Czech). Československá letadla. Praha: Naše vojsko.
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