The Green Engine Co was an early British aero engine manufacturer. It was founded by Gustavus Green in London to produce engines of his design during the first decade of the 20th century. Gustavus Green (1865-1964 was a British engineer who made significant contributions to the design of early aircraft engines Actual manufacturing was carried out at the Aster Engineering Company of Wembley. The Aster was an English Automobile manufactured from 1922 to 1930 Wembley is an area located in North-West London, England which forms the northern part of the London Borough of Brent. The firm produced a range of water-cooled, inline engines up to about 1915. Green engines powered many pioneering British aircraft, including those by Alliott Verdon Roe, and the Short Brothers. Sir Edwin Alliott Verdon Roe ( April 26, 1877 – January 4 1958) was a pioneer British pilot and Aircraft manufacturer, and founder Short Brothers plc is a British Aerospace company usually referred to simply as Shorts, that is now based in Belfast, Northern Ireland