BFW M.22
The Messerschmitt M 22 was a bomber designed by the Messerschmitt aircraft, and was manufactured by the Bavarian Aircraft Works in the late 1920s.
The secret contract to develop the M 22 was issued by the Reichswehr to hold at least through the construction of individual prototypes with technological developments abroad can step. The M 22 was designed as a twin-engined biplane einstieliger, the upper wing was attached directly to the steel tube fuselage. The two engines with tractor propeller were located between the wings.
The only prototype, which first flew in 1928, 1930 in the testing went to break.