The de Havilland Ghost is a British turbojet engine developed in the late 1940s. It was designed for use in various aircraft, including the de Havilland Comet, which was the world's first commercial jet airliner. The Ghost engine was known for its reliability and performance, contributing to the advancement of jet propulsion technology. This engine features a single-spool design and was capable of producing significant thrust, making it suitable for both military and civilian applications. The de Havilland company, founded by Sir Geoffrey de Havilland, played a crucial role in the development of aviation technology during the 20th century.