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Avia BH-29

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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 (370 mi, 320 nmi)
  • Service ceiling: 4,000 m (13,000 ft)
  • Rate of climb: 2.5 m/s (490 ft/min)

References

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