Duke has been an aviation professional for over thirty-five years. He began his leadership career with the US Army as a helicopter pilot where he commanded several aviation companies and air traffic control detachments. He worked as an Air Traffic Control Specialist in a civilian career with the FAA for eight years prior to PHI employment. Duke is currently based in Phoenix, Arizona and has 25 years of PHI Air Medical experience as an Oil & Gas Pilot, HAA SPIFR Lead Pilot, Aviation Area Manager in various regions of the USA. Duke was previously the Director of Operations in Saudi Arabia for PHI International Air Medical operations.