In 1939, a single Bf109 was fitted with an American Pratt & Whitney R-1830 Twin Wasp radial engine. It was apparently meant to serve as a prototype for an export version of Bf109. In late 1940 another Bf109 was fitted with a BMW801 radial engine (as used on the FW190 fighter) for trials but no production order followed.
The Messerschmitt 109, on the other hand, was a German fighter plane that was also used extensively during World War II. It was designed by Willy Messerschmitt in the mid-1930s and first flew in 1935. The Messerschmitt 109 was powered by a Daimler-Benz DB 601 engine, which gave it a top speed of around 380 mph.
Messerschmitt Bf 109. Referred to as the Me 109 by Allied pilots and aircrew, the aircraft was designed in the mid-1930’s. One of the first truly modern fighters of the era, it featured all-metal construction, a closed canopy, retractable undercarriage, and a liquid-cooled, inverted V-12 engine. It is the most-produced fighter aircraft in MIjO.