The Tumansky RD-300 is a turbojet engine developed in the Soviet Union during the 1950s. It was designed for use in various aircraft, particularly in the Mikoyan-Gurevich MiG-19, a fighter jet known for its speed and agility. The RD-300 features a single-shaft design and is capable of producing significant thrust, making it suitable for military applications. This engine is part of the broader family of Tumansky engines, which were known for their reliability and performance. The RD-300 played a crucial role in advancing jet propulsion technology in the Soviet aviation industry, contributing to the development of faster and more capable aircraft during the Cold War era.