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The Avia BH-4 was a prototype fighter aircraft built in Czechoslovakia in 1922. It was a development of the BH-3 fitted with a Hispano-Suiza 8 engine in an attempt to improve the aircraft's performance. To accommodate the new powerplant, the forward fuselage was considerably redesigned, and the structure in general and undercarriage in particular were strengthened. Performance was found to be only marginally better than the BH-3, and development was quickly abandoned.

BH-4
Role	Fighter Type of aircraft
Manufacturer	Avia
Designer	Pavel Beneš and Miroslav Hajn
First flight	1922
Number built	1

Specifications

General characteristics

• Crew: one pilot
• Length: 6.47 m (21 ft 3 in)
• Wingspan: 10.25 m (33 ft 7 in)
• Height: 2.97 m (9 ft 9 in)
• Wing area: 15.8 m² (170 sq ft)
• Empty weight: 724 kg (1,596 lb)
• Gross weight: 1,015 kg (2,238 lb)
• Powerplant: 1 × Hispano-Suiza 8Ba Vee-8 , 164 kW (220 hp)

Performance

• Maximum speed: 222 km/h (138 mph, 120 kn)
• Range: 510 km (320 mi, 280 nmi)
• Service ceiling: 6,700 m (22,000 ft)
• Rate of climb: 4.2 m/s (820 ft/min)

Armament

• 2 × fixed, forward-firing machine guns

See also

Related development

• BH-3

References

Wikimedia Commons has media related to Avia BH-4.

• 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

На других языках

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[de] Avia BH-4

Die Avia BH-4 war ein tschechoslowakisches Jagdflugzeug und eine Weiterentwicklung der BH-3 mit modifiziertem Fahrwerk und einem tieferen, mehr stromlinienförmigen Rumpfvorderteil (dank seines Hispano-Suiza-8Ba-Motors). Die Leistung war derer der BH-3 nur geringfügig überlegen, daher wurde die Serienproduktion nicht aufgenommen.

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- [en] Avia BH-4

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