Junkers Jumo 211

The Junkers Jumo 211 was a German inverted V12 aircraft engine and the primary aircraft engine of Junkers Motoren during the Second World War. Developed by Franz Josef Neugebauer as a scaled-up successor to the Jumo 210, it was first prototyped at the Dessau plant in 1935 and began testing in April 1936, with limited production of the 1,000 PS 211A starting in April 1937. It competed directly with the Daimler-Benz DB 601 but was used chiefly in bombers such as the Junkers Ju 87 and Ju 88 and the Heinkel He 111. With 68,248 engines built, including prototypes and development engines, it was the most produced German aero engine of the war, and its development line led on to the Jumo 213.