The M 20[REF] was designed by Willy Messerschmitt at Bayerische Flugzeugwerke, primarily for use with Luft Hansa which had ordered two in advance of the first flight.
The aircraft made its maiden flight on 26 February 1928, but was lost when pilot Hans Hackmack bailed out at low altitude and was killed, after the surface stripped from part of the wing.