The RD-500 is a turbojet engine developed in the 1950s, primarily used in military aircraft. It was designed by the Soviet Union and is known for its reliability and performance. The engine was based on the Rolls-Royce Nene, which was reverse-engineered to meet the needs of Soviet aviation. This engine powered several aircraft, including the Mikoyan-Gurevich MiG-15 and the Tupolev Tu-4. The RD-500 played a significant role in enhancing the capabilities of Soviet air forces during the Cold War, contributing to the development of various fighter jets and bombers.