Avia BH-29
# Avia BH-29

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 an 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 only a few were built.

## Specifications (NZ-85 engine)

Data from Jane's all the World's Aircraft 1928

General characteristics

* Crew: two
* Length: 7.4 m (24 ft 3 in)
* Wingspan: 9.8 m (32 ft 2 in)
* Wing area: 25 $m^2$ (270 sq ft)
* Empty weight: 545 kg (1,202 lb)
* Gross weight: 815 kg (1,797 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
* Propellers: 2-bladed fixed-pitch propeller

Performance

* Maximum speed: 135 km/h (84 mph, 73 kn)
* Stall speed: 60 km/h (37 mph, 32 kn)
* Range: 420 km (260 mi, 230 nmi)
* Service ceiling: 2,200 m (7,200 ft)
* Rate of climb: 2.5 m/s (490 ft/min)
* Time to altitude: 1,000 m (3,300 ft) in 12 minutes; 2,000 m (6,600 ft) in 40 minutes
