The Oberursel U.II engine is an iconic rotary engine renowned for powering legendary World War I aircraft, particularly the Fokker Dr.I triplane famously flown by Manfred von Richthofen, the "Red Baron." Manufactured by the German company Oberursel, the U.II is a meticulously engineered, 11-cylinder air-cooled rotary engine capable of producing approximately 110 horsepower. With a displacement of around 16.3 liters, the U.II provided significant power, enabling aircraft to achieve impressive agility and reliability during dogfights. Distinguished by its rotary design, where both the propeller and cylinders rotate, the U.II engine achieves effective cooling and a signature handling profile, ideal for the rapid maneuvers required in aerial combat. This engine's robust construction and innovative design have cemented it as a revered artefact of aviation history.
