Banco de dados da Segunda Guerra Mundial (WW2DB)

Contributor: Alan Chanter

ww2dbaseThe side-by-side two-seat Bücker monoplane was designed just before the war as a club touring and training aircraft but, during the war years, it became the Luftwaffe's primary trainer aircraft. The prototype (D-ERBV) was first flown in Feb` 1939 with Chief Pilot Arthur Benitz at the controls, and, following testing by the Luftwaffe was ordered into production as the Bü 181A to become the service's standard basic trainer. A later version with a number of detail improvements was designated Bü 181D Bestmann.

ww2dbaseThe new aircraft, powered by a 105-horsepower Hirth HM.504 inline engine, had a fixed tailwheel undercarriage and an enclosed cockpit with dual controls. The wings were of wooden basic construction with plywood and fabric covering, and a tail unit of similar structure. The fuselage consisted of a steel-tube forward section and a wooden monocoque aft section.

ww2dbaseA total of 2,730 Bücker Bü 181 Bestmann aircraft would be built in Germany, with a further 708 machines being completed by Fokker in the Netherlands. As the type became available in large numbers the Luftwaffe also employed it as a communications aircraft and, in smaller numbers, as a glider tug. Additionally, in 1944-6, 125 examples were built in Sweden by AB Hagglund for that nation's air force under the designation Sk 25. As Germany's situation deteriorated in the final months of the war some Bestmanns were fitted with four underwing Panzerfaust grenade launchers for use in an anti-tank role but, with fuel and pilot shortages, these would meet with little success in turning the course of battle.

ww2dbaseThe design was produced after the war by Zlin in Czechoslovakia as the Zlin 181 and they continued to build a further 79 Z-281s with a 105-horsepower Toma engine and then 314 of the Z-381 with a 105-horsepower Walter Minor 4-III for the civilian market. Another post-war producer was the Egyptian government who set up a production line in Helwan in the early 1950s to licence build 300 Czechoslovakian Bü 181D Bestmanns under the designation of Heliopolis Gomhouriya; many of these exported to several other Arab states.

SPECIFICATIONS

Bü 181

Machinery	One Hirth HM. 504A or 504B 3,998-cc 4cyl inverted inline petrol engine rated at 105hp
Crew	2
Span	10.60 m
Length	7.85 m
Height	2.05 m
Wing Area	13.50 m²
Weight, Empty	480 kg
Weight, Loaded	750 kg
Speed, Maximum	215 km/h
Speed, Cruising	195 km/h
Service Ceiling	5,000 m
Range, Normal	800 km

Photographs