On 12th May 1936 was made a test flight of a prototype of a German two-engined fighter Messerschmitt Bf 110. It was a metallic low-wing with double assembly. The crew consisted of pilot and a shooter. Bf 110 was created because of the trend of finding fast two-engined fighter. It turned out that it was a dead end in aviation development. Bf 110 didn’t really have a successful construction, although it was in service in Luftwaffe until the end of World War II.