 Within two months of the project cancellation , all aircraft , engines , production tooling and technical data were ordered scrapped . Officially , the reason given for the destruction order from cabinet and the chiefs of staff was to destroy classified and " secret " materials used in the Arrow and Iroquois programs . The action has been attributed to Royal Canadian Mounted Police fears that a Soviet " mole " had infiltrated Avro , later confirmed to some degree in the Mitrokhin archives . 
