Engineering:Avia BH-7

From HandWiki
Short description: Prototype Czechoslovak fighter aircraft
BH-7
Avia Bh-7.jpg
Role Fighter
Manufacturer Avia
Designer Pavel Beneš and Miroslav Hajn
First flight 1923
Number built 2

The Avia BH-7 was a prototype fighter aircraft built in Czechoslovakia in 1923. It was a parasol-wing monoplane developed in tandem with, and as an alternative to the BH-6, which shared its fuselage and tail design. Like the BH-6, the BH-7 was involved in a number of serious crashes during its test programme, which led to its abandonment as a fighter. Undaunted, however, Avia used the design as the basis for a racing aircraft, shortening the wingspan by 1.4 m (4 ft 7 in), fairing the wing directly onto the top of the fuselage and dispensing with the cabane struts. This revised version was designated BH-7B and the fighter (retrospectively) as the BH-7A. When the design proved no more successful as a racer, it was finally put to rest.

Specifications

General characteristics

  • Crew: one pilot
  • Length: 6.84 m (22 ft 5 in)
  • Wingspan: 10.40 m (34 ft 1 in)
  • Height: 2.83 m (9 ft 3 in)
  • Wing area: 18.2 m2 (195 sq ft)
  • Empty weight: 855 kg (1,885 lb)
  • Gross weight: 1,150 kg (2,537 lb)
  • Powerplant: 1 × Skoda licence-built Hispano-Suiza 8Fb Vee-8 , 310 kW (231 hp)

Performance

  • Maximum speed: 240 km/h (149 mph, 129 kn)
  • Range: 480 km (300 mi, 260 nmi)
  • Service ceiling: 8,000 m (26,200 ft)
  • Rate of climb: 6.7 m/s (1,312 ft/min)

Armament

See also

Related development

References

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