who developed the new fighter aircraft from a sports acrobatic plane, the Messerschmitt Bf-108 - believed in a low-weight, simple monoplane with innovative construction, such as attaching the landing gear to the fuselage. The first prototype, the Messerschmitt Bf 109 V1, was equipped with a Rolls Royce Kestrel VI engine, made its maiden flight on May 28, 1935, and was followed by two other prototypes. Willy Messerschmitt - who developed the new fighter aircraft from a sports acrobatic plane, the Messerschmitt Bf-108 - believed in a low-weight, simple monoplane with innovative construction, such as attaching the landing gear to the fuselage.
The first Messerschmitt Bf-109 that went to series production was the B1 model with a newly installed Jumo 210B engine. Experiences in the Spanish Civil War lead to the creation of the type C, finally carrying five MG 17 machine guns on the wings and on the nose of the aircraft. The following type D ("Dora") was tested in the first World War II air battles but saw limited service and was soon replaced by the type E ("Emil"), famous for its deployment in the Battle of Britain (July 7 - October 31, 1940). The following type F ("Friedrich"), improved by changes in aerodynamics, served along with the type K until the end of World War II, mainly for purposes of training and exploration. Another new type, the Messerschmitt Kf-109 G, was designed in 1940 and remained in use until the 1950s.

The Messerschmitt Bf-109 K came into the world in 1943; its series production was launched a year later. Willy Messerschmitt was asked to rationalize production and create a standard model by consolidating parts of previous Messerschmitts Bf 109s because resources were running low due to the long-lasting war. The designer constructed four variants: K6, K8, K14 and the K4 type, which became by far the most widespread of the Bf-109 Ks with 1,700 units constructed before the end of World War II.

Technical Parameters:  The Messerschmitt Bf-109 K4, designed as a single-seater fighter aircraft, is an all-metal aircraft made of Dural and other aluminum alloys. It has a three-vane variable pitch propeller run by a cylindrical petrol water-cooled engine. The K4 was the only of all the Messerschmitt Bf-109s equipped with fully attached hatches on both the landing gear and the tailskid. Designed to reach high speed, having considerable firing strength, and being easy to maneuver, the Bf-109 K was able to either deftly flee from troublesome situations or catch up with and destroy enemy aircraft. These qualities sometimes prepared an unpleasant surprise for the Allies who tended to underestimate the Messerschmitt. However, the Bf-109 Ks often could not make full use of its technical potential because of the huge losses among German soldiers that resulted in the deployment of under-trained pilots, which ultimately determined their fate. It is necessary to add that the Messerschmitt Bf-109 Ks were a success in the Eastern Front where they achieved many victories in World War II air battles.