It originated in the
Klemm-Flugzeugwerke Halle that had been founded in 1934 as a branch of
Leichtflugzeugbau Klemm in
Böblingen. Its name changed to
Siebel Flugzeugwerke when it was taken over by Friedrich Siebel in December 1937. After
World War II the company was revived as
Siebel Flugzeugwerke ATG (SIAT) in
West Germany in 1948, with its headquarters in
Munich. In 1956, its headquarters were moved to
Donauwörth and the company became
WMD-Siebelwerke ATG (WMD/SIAT) in 1958 in cooperation with
Waggon- und Maschinenbau GmbH Donauwörth (WMD). In 1968 the company was absorbed by
Messerschmitt-Bölkow-Blohm after MBB became the major shareholder. == Products ==