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Avia BH-11 Aircraft Information

Avia BH-11


Manufacturer: Avia
Designed by: Pavel Bene and Miroslav Hajn
First flight: 1923
Number built: ca. 20

The Avia BH-11 was a two-seat sport aircraft built in Czechoslovakia in 1923, a further development of the Avia BH-9. The main changes in this version involved a redesign of the forward fuselage. 15 examples were ordered by the Czechoslovakian Army as trainers and general liaison aircraft and operated under the military designation B.11.

Six years after the BH-11 first flew, a new version was produced for the civil market as the BH-11B Antelope. This replaced the original 45kW (60hp) engine with a Walter Vega of 63kW (85hp) and was built in small numbers.

A further development, the BH-11C retained the original engine but increased the wingspan by 1.4m (4ft 6in).

A BH-11A and a BH-11C are preserved at the Prague Aviation Museum, Kbely.

Specifications (BH-11)

General characteristics

Crew: one pilot
Capacity: 1 passenger
Length: 6.64 m (21 ft 9 in)
Wingspan: 9.72 m (31 ft 11 in)
Wing area: 13.6 m (146 ft)
Empty weight: 351 kg (774 lb)
Gross weight: 579 kg (1,276 lb)
Powerplant: 1 x Walter NZ 60, 45 kW (60 hp)


Maximum speed: 155 km/h (97 mph)
Range: 600 km (374 miles)
Service ceiling: 4,500 m (14,800 ft)
Rate of climb: 2.7 m/s (550 ft/min)

Related development BH-5 - BH-9 - BH-10 - BH-12

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). Československx letadla. Praha: Nae Vojsko.

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Source: WikiPedia

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