Avia BH-33

1st Flight 1927
The Avia BH-33 was a biplane fighter aircraft built in Czechoslovakia in 1927.
Avia BH-33
It was based on the BH-21J which demonstrated promising results by combining the original BH-21 airframe with a licence-built Bristol Jupiter radial engine.
Avia BH-33
Other than the peculiar Avia hallmark of having an upper wing with a shorter span than the lower, it was utterly conventional, even featuring a tail fin for the first time in a Pavel Beneš and Miroslav Hajn design (previous aircraft had a rudder but no fin).
Avia BH-33
Czechoslovakian BH-33s never saw combat, and Poland’s examples had long been replaced in service by the time of the German invasion.
Avia BH-33
Two Yugoslavian machines did, however see combat against Luftwaffe Messerschmitt Bf 109s, but were both destroyed and their pilots killed.
Avia BH-33
Variants-
BH-33, First prototype.
BH-33-1, Two prototypes powered by Jupiter VI (second) and Jupiter VII (third) engines plus five serial built aircraft with Jupiter VII engine.
BH-33E, Rebuilt fuselage
BH-33E-SHS, Yugoslav Version powered by IAM K9 engine, 22 built.
BH-33L, Version with longer-span wings, powered by a Škoda L engine, 80 built.
BH-33H (BH-133), Version powered by Pratt & Whitney Hornet engine, one built.
P.W.S.A, Polish license-built variant of the BH-33 with minor modifications, 50 built between 1929 and 1932.
Avia BH-33
Specifications-
Crew: one, pilot
Length: 7.22 m (23 ft 8 in)
Wingspan: 8.90 m (29 ft 2 in)
Height: 3.13 m (10 ft 3 in)
Avia BH-33
Wing area: 25.5 m2 (274 sq ft)
Empty weight: 1,117 kg (2,463 lb)
Gross weight: 1,560 kg (3,439 lb)
Power plant: 1 × Škoda L , 430 kW (580 hp)
Avia BH-33
Performance
Maximum speed: 298 km/h (186 mph, 162 kn)
Cruise speed: 280 km/h (174 mph, 151 kn)
Range: 450 km (280 mi, 240 nmi)
Service ceiling: 8,000 m (26,247 ft)
Rate of climb: 9.9 m/s (1,940 ft/min)
Avia BH-33
Armament
2 × fixed forward-firing 7.7 mm (.303 in) Vickers machine guns
2 × fixed forward-firing 7.92mm vz.28 machine gun
Avia BH-33
Credits-
Avia BH–33- Jiří Vraný
AVIA, The Aviation Collection-Antonín Vlasák II
The Complete Book of Fighters-William Green & Gordon Swanborough
Wikipedia.

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