The BMW 802 is a six-cylinder aircraft engine developed by BMW during the late 1930s. It was designed for use in various aircraft, including the Messerschmitt Bf 109 and Focke-Wulf Fw 190. The engine is known for its reliability and performance, contributing to the effectiveness of the aircraft it powered. The BMW 802 features a liquid-cooled design and was capable of producing around 1,600 horsepower. Its innovative engineering allowed for improved fuel efficiency and power output, making it a significant advancement in aviation technology during its time.