Avia BH-6 / BH-8

1st Flight 1923
The Avia BH-6 was a prototype fighter aircraft built in Czechoslovakia in 1923.
Avia BH-6
It was a single-bay biplane of unusual configuration, developed in tandem with the BH-7, which shared its fuselage and tail design.
The BH-6 had wings of unequal span, but unusually, the top wing was the shorter of the two, and while it was braced to the bottom wing with a single I-strut on either side, these sloped inwards from bottom to top.
Finally, the top wing was attached to the fuselage not by a set of cabane struts, but by a single large pylon.
The BH-6 crashed early in its test program, and when the related BH-7 did also, both implementations of this design were abandoned.
Specifications-
Crew: one pilot
Length: 6.47 m (21 ft 3 in)
Wingspan: 9.98 m (32 ft 9 in)
Height: 2.88 m (9 ft 5 in)
Wing area: 22.6 m2 (243 sq ft)
Empty weight: 878 kg (1,936 lb)
Gross weight: 1,180 kg (2,601 lb)
Power plant: 1 × Skoda license-built Hispano-Suiza 8Fb , 224 kW (300 hp)
Performance
Maximum speed: 220 km/h (137 mph, 119 kn)
Endurance: 2 hours
Service ceiling: 7,000 m (23,000 ft)
Armament
2 × fixed, forward-firing .303 Vickers machine guns
Avia BH-6
BH-8
1st Flight 1923
The Avia BH-8 was a prototype fighter aircraft built in Czechoslovakia in 1923.
Avia BH-8
It was an unequal-span biplane developed on the basis of the ill-fated BH-6 design, in an attempt to address that type’s problems.
It shared the BH-6’s unusual wing cellule design.
When test-flown in late 1923, it did indeed display better flying characteristics than its predecessor, but was overtaken in development by another variation of the same design, the BH-17.
Crew: one pilot
Length: 6.49 m (21 ft 3 in)
Wingspan: 9.48 m (31 ft 1 in)
Height: 2.77 m (9 ft 1 in)
Wing area: 22.1 m2 (238 sq ft)
Empty weight: 843 kg (1,858 lb)
Gross weight: 1,143 kg (2,520 lb)
Power plant: 1 × Skoda license-built Hispano-Suiza 8Fb Vee-8 , 310 kW (231 hp)
Performance
Maximum speed: 222 km/h (138 mph, 120 kn)
Range: 450 km (280 mi, 240 nmi)
Service ceiling: 8,000 m (26,200 ft)
Rate of climb: 5.7 m/s (1,115 ft/min)
Armament
2 × fixed, forward-firing .303 Vickers machine guns
Avia BH-8
Credits-
AVIA, The Aviation Collection-Antonín Vlasák II
The Complete Book of Fighters-William Green & Gordon Swanborough
Wikipedia.

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