David McIntyre is one of Scotland’s leading aviation pioneers and the man behind Prestwick Airport. In 1933, McIntyre and the Marquis of Clydesdale were the first to fly over Mount Everest. Three years later, they established a flying school at Prestwick – an important training centre for RAF pilots in World War II. McIntyre was heavily involved and also in the development of Prestwick into an international airport. The flying school later became Scottish Aviation, which manufactured the single-engine Prestwick Pioneer and Twin Pioneer aircraft.