Hobby Master Messerschmitt Air Force Russia 1941 ModelThe first German mass produced 109 fighter was the Bf 109E that has been mistakenly referred to as the Me 109. The Bf is the designator for the Bayerische Flugzeugwerke (BFW) (Bavarian Aircraft Works) that produced the original aircraft. In 1938 Messerschmitt took over BFW but throughout WWII German handbooks and documents referred to the aircraft as the Bf 109. By the end of 1939 the Bf 109E (Emil) had replaced all other 109 variants and equipped 13