This is the story of Edgar Wikner Percival and the aircraft company he created. He was an ebullient high achiever with a sometimes abrasive personality, a brash Irish-Australian making his mark in the cosy world of British civil aviation between the wars. Along the way we touch on the stories of other aircraft makers tangential to the main narrative. Before the end of the Second World War, Percival left the company he had set up, selling it to the Hunting Group. It later became part of the British Aircraft Corporation, who 'sacrificed' the Luton factory after the TSR2 debacle. We round off the story of Edgar Percival with the EP.9 agricultural aircraft which he produced with a new company in the 1950s.