Bucker Flugzeubau GmbH
Bücker Flugzeugbau was founded by Carl Bücker in 1932, its first aircraft was the Bu 131 Jungmann trainer, designed by Swede Anders Andersson.
The prototype first flew on April 27,1934. It was followed by the Bu 133 Jungmeister in 1935 and by the extensively built Bu 181 Bestmann in 1936. Production of the latter continued after Second World War by Zlin in Czechoslovakia and, under Czech license, by Egypt's Heliopolis Aircraft Works in the 1950s.