The Avia BH-9 was a twin-seat sports plane built in Czechoslovakia in 1923, based on the BH-5. As with other developments in the BH-1 lineage, the BH-9 was a low-wing braced monoplane that accommodated the pilot and passenger in tandem, open cockpits. The BH-9's structure was strengthened to allow the use of a higher-power engine than in its predecessors, and for the first time, this was a domestically-produced powerplant. Although built as a twin-seat aircraft at least one (registration L-BONF - see picture) was converted to a single-seater.

BH-9
Role	Sports plane Type of aircraft
Manufacturer	Avia
Designer	Pavel Beneš and Miroslav Hajn
First flight	25 November 1923
Introduction	1923
Number built	11

The Czechoslovakian Army showed interest in it as a trainer and liaison aircraft, and ordered ten examples under the designation B.9.

A B.9 won the 1925 Coppa d'Italia air race, and the following year, one was flown on a 1,800 km (1,100 mi) circuit Prague-Paris-Prague with an average speed of 131.2 km/h (82 mph).

Specifications

General characteristics

• Crew: one pilot
• Capacity: one passenger
• Length: 6.64 m (21 ft 10 in)
• Wingspan: 9.72 m (31 ft 11 in)
• Height: 2.53 m (8 ft 3 in)
• Wing area: 13.6 m² (146 sq ft)
• Empty weight: 345 kg (761 lb)
• Gross weight: 550 kg (1,213 lb)
• Powerplant: 1 × Walter NZ 60 radial , 45 kW (60 hp)

Performance

• Maximum speed: 158 km/h (98 mph, 85 kn)
• Range: 470 km (290 mi, 250 nmi)
• Service ceiling: 4,500 m (14,800 ft)

See also

Related development

• BH-5
• BH-10
• BH-11
• BH-12

References

Wikimedia Commons has media related to Avia BH-9.

• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 86.
• World Aircraft Information Files. London: Bright Star Publishing. pp. File 889 Sheet 86.
• Němeček, V. (1968). Československá letadla. Praha: Naše Vojsko.
• airwar.ru

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