The Tumansky R-25 is a Soviet turbojet engine designed in the 1950s, primarily used in military aircraft. It is known for its reliability and performance, powering several notable aircraft, including the Mikoyan-Gurevich MiG-21. The engine features a single-shaft design and is capable of producing significant thrust, making it suitable for supersonic flight. This engine was a key component in the development of Soviet air power during the Cold War. Its design allowed for easy maintenance and adaptability, contributing to its widespread use in various aircraft models. The R-25 played a crucial role in enhancing the capabilities of the Soviet Air Force.