Avia BH-29

BH-29
Role	Trainer
Manufacturer	Avia
Designer	Pavel Beneš and Miroslav Hajn
First flight	1927

The Avia BH-29 was a trainer aircraft built in Czechoslovakia in 1927, in the hope of marketing it to both the Czechoslovakian Army, and to Czechoslovakian Airlines as a primary trainer. It was a conventional design, an unequal-span biplane of wooden construction and with tailskid undercarriage. The pilot and instructor sat in tandem open cockpits. A more powerful version was built , powered by a 120 hp (89 kW) Walter NZ-120 radial engine.

When no interest was shown in the aircraft domestically, Avia undertook a promotional tour where the aircraft was demonstrated in eighteen European countries, but this did not result in any sales either and no more than a handful were built.

Specifications (NZ-85 engine)

General characteristics

• Crew: 2
• Length: 7.4 m (24 ft 3 in)
• Wingspan: 9.8 m (32 ft 2 in)
• Wing area: 25 m² (270 sq ft)
• Empty weight: 830 kg (1,830 lb)
• Gross weight: 1,090 kg (2,403 lb)
• Powerplant: 1 × Walter NZ-85 7-cyl. air-cooled radial piston engine, 63 kW (85 hp) rated power, 75 kW (100 hp) for take-off

Performance

• Maximum speed: 90 km/h (56 mph; 49 kn)
• Range: 600 km (373 mi; 324 nmi)
• Service ceiling: 4,000 m (13,123 ft)
• Rate of climb: 2.5 m/s (490 ft/min)

References

• Němeček, V. (1968). Československá letadla. Praha: Naše Vojsko.