Messerschmitt Bf-109F, with production deliveries to Luftwaffe commencing the spring, 1941, was top of development of plane Bf-109. On aerodynamics and a controllability this machine could be considered as an ideal of a fighter. High flight performances have been achieved due to reduction of armament. In result production Bf-109F has been stopped after manufacturing 2300 machines. Modification: Bf-109F-1, two 7,92 mm machine guns and one 20-mm cannon in disorder of cylinders of the engine; F-2 had 15-mm a cannon ; F-3 was equipped engine DB-601E (1350 hp); on model F-4 20-mm cannon and has improved armoring, and F-6 was the reconnaissance aircraft.