The Jumo 205 is a German aircraft engine developed in the 1930s, known for its innovative design as a diesel engine. It was primarily used in various military aircraft during World War II, offering improved fuel efficiency and reliability compared to traditional gasoline engines. This engine features a six-cylinder, in-line configuration and is notable for its ability to operate on a variety of fuels. The Jumo 205 played a significant role in enhancing the performance of aircraft like the Messerschmitt Bf 110, contributing to the Luftwaffe's capabilities during the war.