Engineering:Avia BH-20

BH-20
Role	Civil trainer
Manufacturer	Avia
Designer	Pavel Beneš and Miroslav Hajn
First flight	1924
Number built	1

The Avia BH-20 was a civil trainer aircraft built in Czechoslovakia in 1924. It was a single-bay, unstaggered biplane of conventional configuration. The wings were braced with N-struts at around half-span. The pilot and instructor were seated in tandem, open cockpits.

Specifications

Avia BH-20 2-view drawing from L'Aéronautique July,1927

General characteristics

• Crew: two, pilot and instructor
• Length: 6.29 m (20 ft 8 in)
• Wingspan: 7.88 m (25 ft 10 in)
• Wing area: 16.1 m² (173 sq ft)
• Empty weight: 345 kg (761 lb)
• Gross weight: 485 kg (1,069 lb)
• Powerplant: 1 × Walter NZ 60 radial , 45 kW (60 hp)

Performance

• Maximum speed: 160 km/h (100 mph, 87 kn)
• Service ceiling: 4,000 m (13,100 ft)
• Rate of climb: 3.1 m/s (610 ft/min)

References

• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. pp. 86. 
• Němeček, V. (1968). Československá letadla. Praha: Naše Vojsko.